JPH11261933A - Image processing apparatus, control method for image processing apparatus, and storage medium - Google Patents

Abstract

(57) [Summary] [Problem] Image processing in which it is possible to select whether to reproduce and display a captured image immediately after capturing and then record the image, or to record by taking advantage of the image quality of the captured image and then reproduce and display the captured image. Apparatus, a control method for the image processing apparatus, and a storage medium. When a compression mode is selected (S16)
2, JPEG mode) and play back and display the captured image (S
167), compresses and records the image (S168, S16)
9). When the RAW mode is selected (S167, CC
(DRAW mode) and record the captured image (S17).
5) Then, the image is reproduced and displayed (S180, S18)
1).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus for capturing, recording, and reproducing still images and moving images, a control method for the image processing apparatus, and a storage medium.

[0002]

2. Description of the Related Art Conventionally, an image processing apparatus such as an electronic camera for recording and reproducing a still image and a moving image using a memory card having a solid-state memory element as a recording medium is already on the market.
Electronic cameras equipped with an electronic finder such as a color liquid crystal panel are also on sale.

According to these electronic cameras, it is possible for the user of the electronic camera to continuously determine the composition by continuously displaying images before shooting, and to reproduce and display the shot images for confirmation. .

[0004] In particular, the function of reproducing a photographed image immediately after photographing is highly convenient and is a useful function for a user of an electronic camera.

[0005]

In such a conventional image processing apparatus such as an electronic camera, in order to make it easy to reproduce and display a photographed image immediately afterward, the photographed image data is reproduced on an image display unit. After conversion into an image signal form suitable for the recording medium, the data is written on a recording medium.

For this reason, for example, a combination of a luminance Y signal, a chrominance RY signal, a chrominance BY signal, or an RGB signal in accordance with a signal input to an image display unit irrespective of the pixel configuration of an image pickup means such as a CCD. A combination of signals is used.Even an electronic camera using an image pickup unit having a special pixel configuration with excellent image quality, if it has a function of reproducing and displaying a captured image immediately after that, the image quality is reduced. Recording was not performed in the form of an image signal.

[0007] On the other hand, in the case of an electronic camera of a system in which photographed image data is written on a recording medium in the form of an image signal corresponding to the pixel configuration of the imaging means such as a CCD, the recording quality is sufficient to ensure the capability of the imaging means. However, the captured image cannot be reproduced and displayed as it is because the image signal format is not suitable for reproducing the image on the image display unit.

The present invention has been made under such a situation, and a photographed image is reproduced and displayed as it is immediately after photographing and then recorded, or recorded using the image quality of the photographed image, and then photographed. It is an object of the present invention to provide an image processing apparatus, a control method of the image processing apparatus, and a storage medium which can select whether to reproduce and display an image.

[0009]

In order to achieve the above object, according to the present invention, the image processing apparatus is controlled by the following method (1) to (3).
The storage medium is configured as in (6) and the storage medium is as in (7) below.

(1) An image processing apparatus for recording, reproducing, and displaying a captured still image and / or moving image on a recording medium, comprising: an imaging unit, a recording unit, and a display unit. A first recording mode in which an image signal is displayed by the display unit and then recorded in the recording unit in the displayed image signal form, and a first recording mode in which the output image signal of the imaging unit is recorded in the recording unit in the form of a captured image signal An image processing apparatus having a second recording mode displayed by the display means.

(2) An image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, comprising: an imaging unit, a signal processing unit, a recording unit, and a display unit. The image processing apparatus has a first signal form corresponding to an input image signal of the display means, and a second signal form corresponding to an output image signal of the image pickup means, and further includes an output signal of the image pickup means. A first signal recorded on the recording means after the image signal is converted by the signal processing means into the first signal form and displayed on the display means.
Recording mode, and after recording the output image signal of the imaging means in the recording means in the second signal form, performing a process of converting the signal to the first signal form by the signal processing means, and in the display means An image processing apparatus having a second recording mode for displaying.

(3) An image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, comprising: an imaging unit, a signal processing unit, a compression unit, a recording unit, and a display unit. Wherein the image processing apparatus comprises: a first signal form corresponding to an input image signal of the display means;
A second signal form corresponding to an output image signal of the image pickup means, and further performing a process of converting the output image signal of the image pickup means into the first signal form by the signal processing means, and performing the display. A first recording mode in which the processed image signal is compressed by the compression means and recorded in the recording means after being displayed on the means, and the output image signal of the imaging means is recorded in the second signal form by the second signal form. A second recording mode for performing a process of converting the recorded image signal into the first signal form by the signal processing unit after recording the image signal on the display unit, and displaying the processed image signal on the display unit. An image processing apparatus having:

(4) A control method of an image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, wherein an output image signal of the imaging means is displayed by the display means and then displayed. A step of a first recording mode for recording on the recording means in the form of an image signal, and a step of a second recording mode for recording the output image signal of the imaging means on the recording means in the form of a captured image signal and then displaying it on the display means And a step of selecting either the step of the first recording mode or the step of the second recording mode.

(5) A control method of an image processing apparatus for recording and reproducing and displaying a captured still image and / or moving image on a recording medium, wherein an output image signal of the imaging means corresponds to an input image signal of the display means. A step of a first recording mode in which a process for converting to a first signal form is performed and displayed on the display unit, and then recorded in the recording unit, and an output image signal of the imaging unit corresponding to the output image signal of the imaging unit After recording on the recording means in accordance with the second signal form, the processing for converting the signal form into the first signal form is performed and the second signal form is displayed on the display means.
A method of controlling an image processing apparatus, comprising: a step of the recording mode; and a step of selecting either the step of the first recording mode or the step of the second recording mode.

(6) A method for controlling an image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, wherein an output image signal of the imaging means corresponds to an input image signal of the display means. A step of a first recording mode for performing a process of converting to the first signal form and displaying the processed image signal on the display unit, compressing the processed image signal and recording the compressed image signal on the recording unit; After recording in the recording means in a second signal form corresponding to the output image signal of the imaging means, a process of converting the recorded image signal to the first signal form is performed, and the processed image signal is Control of an image processing apparatus comprising: a step of a second recording mode to be displayed on the display means; and a step of selecting either the step of the first recording mode or the step of the second recording mode. Law.

(7) A storage medium storing a program for implementing the control method of the image processing apparatus according to any one of (4) to (6).

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to embodiments of an image processing apparatus. The present invention,
The present invention is not limited to the image processing apparatus, and may be similarly implemented in the form of a control method of the image processing apparatus, and in the form of a storage medium such as a CD-ROM storing a program for realizing the control method of the image processing apparatus. Can be.

[0018]

FIG. 1 is a block diagram showing the configuration of an "image processing apparatus" according to an embodiment. In FIG. 1, reference numeral 100 denotes an image processing apparatus. Reference numeral 10 denotes a photographing lens, 12 denotes a shutter having an aperture function, 14 denotes an image sensor that converts an optical image into an electric signal, and 16 denotes an A / D converter that converts an analog signal output of the image sensor 14 into a digital signal.

Reference numeral 18 denotes an image sensor 14, an A / D converter 16,
This is a timing generation circuit that supplies a clock signal and a control signal to the D / A converter 26, and is controlled by the memory control circuit 22 and the system control circuit 50.

An image processing circuit 20 performs predetermined pixel interpolation processing and color conversion processing on data from the A / D converter 16 or data from the memory control circuit 22. Further, in the image processing circuit 20, predetermined arithmetic processing is performed using the captured image data, and based on the obtained arithmetic result, the system control circuit 50 controls the exposure control means 40 and the distance measurement control means 42. TTL (through-the-lens) AF (autofocus) processing, AE
(Automatic exposure) processing and EF (flash pre-emission) processing. Further, the image processing circuit 20 performs predetermined arithmetic processing using the captured image data, and also performs TTL AWB (auto white balance) processing based on the obtained arithmetic result.

Reference numeral 22 denotes a memory control circuit, which includes an A / D converter 16, a timing generation circuit 18, an image processing circuit 20,
Image display memory 24, D / A converter 26, memory 30,
The compression / decompression circuit 32 is controlled.

The data of the A / D converter 16 is transmitted through the image processing circuit 20 and the memory control circuit 22 or the data of the A / D converter 16 is transmitted directly through the memory control circuit 22 to the image display memory 24 or the memory. 30 is written.

Reference numeral 24 denotes an image display memory; 26, a D / A converter; and 28, an image display section comprising a TFT LCD or the like. The display image data written in the image display memory 24 is a D / A converter 26. Is displayed by the image display unit 28 via the. If image data captured by the image display unit 28 is sequentially displayed, an electronic finder function can be realized. Further, the image display unit 28 can arbitrarily turn on / off the display according to an instruction from the system control circuit 50. When the display is turned off, the power consumption of the image processing apparatus 100 can be significantly reduced. Can be done.

Reference numeral 30 denotes a memory for storing photographed still images and moving images, which has a sufficient storage capacity to store a predetermined number of still images and moving images for a predetermined time. Accordingly, even in the case of continuous shooting or panoramic shooting in which a plurality of still images are continuously shot, it is possible to write a large amount of images to the memory 30 at high speed. The memory 30 can also be used as a work area for the system control circuit 50.

32 is an adaptive discrete cosine transform (ADCT)
A compression / decompression circuit for compressing / decompressing image data by, for example, reading an image stored in the memory 30 and performing compression or decompression processing, and storing the processed data in the memory 3
Write to 0.

Reference numeral 40 denotes an exposure control means for controlling the shutter 12 having an aperture function, which also has a flash dimming function in cooperation with the flash 48.

Reference numeral 42 denotes distance measurement control means for controlling focusing of the photographing lens 10, reference numeral 44 denotes zoom control means for controlling zooming of the photographing lens 10, and reference numeral 46 denotes barrier control means for controlling the operation of the protection means 102 which is a barrier. .

Reference numeral 48 denotes a flash, which also has a function of projecting AF auxiliary light and a function of controlling flash light.

The exposure control means 40 and the distance measurement control means 42
The system control circuit 50 controls the exposure control means 40 and the distance measurement control means 42 on the basis of the calculation result obtained by calculating the captured image data by the image processing circuit 20.

Reference numeral 50 denotes a system control circuit for controlling the entire image processing apparatus 100, and reference numeral 52 denotes a memory for storing constants, variables, programs, and the like for operating the system control circuit 50.

Reference numeral 54 denotes a display unit such as a liquid crystal display device or a speaker for displaying an operating state or a message using characters, images, sounds, or the like in accordance with the execution of the program by the system control circuit 50. One or more are installed at easily visible positions near 100 operation units.
It is composed of a combination of CDs, LEDs, sound elements, and the like. The display unit 54 has a part of its functions installed in the optical finder 104.

Of the display contents of the display unit 54, those displayed on the LCD or the like include, for example, a single shot / continuous shooting display, a self-timer display, a compression ratio display, a recording pixel number display, a recording number display, and a remaining image capturing. Available number display, Shutter speed display, Aperture value display, Exposure compensation display, Flash display, Red-eye reduction display, Macro shooting display, Buzzer setting display, Clock battery remaining display, Battery remaining display, Error display,
Information display by plural digits, recording media 200 and 21
There is a display indicating the state of attachment / detachment of 0, a communication I / F operation display, a date / time display, a display indicating a connection state with an external computer, and the like.

Of the display contents of the display unit 54, those displayed in the optical finder 104 include, for example,
There are a focus display, a shooting ready display, a camera shake warning display, a flash charging display, a flash charging completed display, a shutter speed display, an aperture value display, an exposure correction display, a recording medium writing operation display, and the like.

Further, among the display contents of the display unit 54, L
The display on the ED or the like includes, for example, an in-focus display, a shooting ready display, a camera shake warning display, a flash charging display, a flash charging completed display, a recording medium writing operation display, a macro shooting setting notification display, and a secondary battery charging state. There are indications.

Among the display contents of the display unit 54, those displayed on a lamp or the like include, for example, a self-timer notification lamp. This self-timer notification lamp may be used in common with the AF auxiliary light.

Reference numeral 56 denotes an electrically erasable / recordable nonvolatile memory, for example, an EEPROM or the like.

Reference numerals 60, 62, 64, 66, 68, 70, and 72 denote operation means for inputting various operation instructions of the system control circuit 50, such as switches and dials, a touch panel, pointing by visual line detection, and voice recognition. It is composed of a single device or a combination of a plurality of devices.

Here, these operation means will be specifically described.

Numeral 60 denotes a mode dial switch, which can switch and set various function modes such as power-off, automatic photographing mode, photographing mode, panoramic photographing mode, reproducing mode, multi-screen reproducing / erasing mode, and PC connection mode.

Reference numeral 62 denotes a shutter switch SW1, which is turned on during the operation (half-press) of a shutter button (not shown).
An instruction is issued to start operations such as AF (auto focus) processing, AE (auto exposure) processing, AWB (auto white balance) processing, and EF (flash pre-emission) processing.

Reference numeral 64 denotes a shutter switch SW2 which is turned ON when the operation of a shutter button (not shown) is completed (fully pressed).
A signal read from the image sensor 12 is converted into an A / D converter 16,
Exposure processing for writing image data to the memory 30 via the memory control circuit 22, development processing using operations in the image processing circuit 20 and the memory control circuit 22, reading image data from the memory 30, and compressing the image data using the compression / decompression circuit 32 Is performed, and an instruction to start a series of processes of a recording process of writing image data to the recording medium 200 or 210 is issued.

Reference numeral 66 denotes an image display ON / OFF switch.
ON / OFF of the image display unit 28 can be set. With this function, when photographing using the optical viewfinder 104, the image display unit 2 composed of a TFT LCD or the like is used.
By cutting off the current supply to the power supply 8, power can be saved.

Reference numeral 68 denotes a quick review ON / OFF switch for setting a quick review function for automatically reproducing image data taken immediately after shooting. In this embodiment, a function for setting the quick review function when the image display unit 28 is turned off is provided.

Reference numeral 70 denotes an operation unit comprising various buttons, a touch panel, etc., a menu button, a set button, a macro button, a multi-screen playback page break button, a flash setting button, a single / continuous / self-timer switching button, and a menu shift + (Plus) button, menu shift-(minus) button, playback image shift + (plus) button, playback image shift-(minus) button, shooting image quality selection button,
There are an exposure compensation button, a date / time setting button, and the like.

Reference numeral 72 denotes a compression mode switch for selecting a compression ratio of JPEG compression, or a CCD for digitizing a signal of the image pickup device 14 as it is and recording it on a recording medium.
This is a switch for selecting the RAW mode.

As the JPEG compression mode, for example, a normal mode and a fine mode are prepared.

In the JPEG compression mode, image data read from the image sensor 14 and written to the memory 30 via the A / D converter 16, the image processing circuit 20, and the memory control circuit 22 is read. , Compression / decompression circuit 32
After performing compression to the compression ratio set by
Recording is performed at 0 or 210.

In the CCD RAW mode, image data is read out line by line according to the pixel arrangement of the color filter of the image pickup device 14 and written into the memory 30 via the A / D converter 16 and the memory control circuit 22. The read image data is read and recorded on the recording medium 200 or 210.

Numeral 80 denotes a power supply control means, a battery detection circuit, D
It comprises a C-DC converter, a switch circuit for switching a block to be energized, and the like, and detects the presence or absence of a battery, the type of battery, and the remaining battery level, and performs DC based on the detection result and an instruction from the system control circuit 50. Control the DC converter to supply a required voltage to each unit including the recording medium for a required period.

Reference numeral 82 denotes a connector, 84 denotes a connector, and 86 denotes a power supply means including a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, and an AC adapter.

Reference numerals 90 and 94 denote interfaces with recording media such as memory cards and hard disks, reference numerals 92 and 96 denote connectors for connecting to recording media such as memory cards and hard disks, and reference numeral 98 denotes recording media 200 or 210 to connectors 92 and / or 96. Is a recording medium attachment / detachment detection unit for detecting whether or not the recording medium is attached.

In this embodiment, the interface and the connector for attaching the recording medium are described as having two systems. Of course, the interface and the connector for attaching the recording medium may have a single or plural number of systems. Also, a configuration may be adopted in which interfaces and connectors of different standards are provided in combination.

As the interface and the connector, P
A card conforming to a standard such as a CMCIA card or a CF (compact flash) card may be used.

Further, the interfaces 90 and 94 and the connectors 92 and 96 are connected to a PCMCIA card or CF.
(Compact flash) When using a card conforming to the standard such as a card, a LAN card, a modem card, a USB card, an IEEE1394 card, a P128
Transfer of image data and management information attached to image data between other computers and peripheral devices such as printers by connecting various communication cards such as a communication card such as a 4-card, SCSI card, and PHS. Can be done.

Reference numeral 102 denotes the lens 1 of the image processing apparatus 100.
This is a protection unit that is a barrier that covers the imaging unit including “0” to prevent the imaging unit from being stained or damaged.

Reference numeral 104 denotes an optical finder, which allows photographing using only the optical finder without using the electronic finder function of the image display unit 28. The display unit 5 is provided in the optical finder 104.
The functions of section 4, for example, focus display, camera shake warning display, flash charge display, shutter speed display, aperture value display, exposure correction display, etc., are provided.

Reference numeral 110 denotes communication means, such as RS232C or US
B, IEEE1394, P1284, and has various communication functions such as SCSI, modem, LAN, and wireless communication.

Reference numeral 112 denotes a connector for connecting the image processing apparatus 100 to another device by the communication means 110 or an antenna in the case of wireless communication.

Reference numeral 200 denotes a recording medium such as a memory card or a hard disk. The recording medium 200 includes a recording unit 202 including a semiconductor memory or a magnetic disk, an interface 204 with the image processing apparatus 100, and the image processing apparatus 1
00 is provided with a connector 206 for making a connection.

Reference numeral 210 denotes a recording medium such as a memory card or a hard disk. The recording medium 210 includes a recording unit 212 including a semiconductor memory and a magnetic disk, an interface 214 with the image processing apparatus 100, and the image processing apparatus 1
00 and a connector 216 for making connection with the 00.

The operation of this embodiment will be described with reference to FIGS. 2, 3, 4, 5, 6, 7, and 8.

FIGS. 2, 3 and 4 show flowcharts of the main routine of the image processing apparatus 100 of this embodiment. The operation of the image processing apparatus 100 will be described with reference to FIGS.

When the power is turned on such as when the battery is replaced, the system control circuit 50 initializes flags, control variables, and the like (S10).
1) Initially, the image display on the image display unit 28 is set to the OFF state (S102).

The system control circuit 50 determines the set position of the mode dial 60, and the mode dial 60
If it is set to FF (S103), the display of each display unit is changed to the end state, the barrier of the protection unit 102 is closed to protect the imaging unit, and necessary parameters and settings including flags and control variables are set. Non-volatile memory 56
After performing predetermined termination processing such as shutting off unnecessary power of each unit of the image processing apparatus 100 including the image display unit 28 by the power supply control unit 80 (S105), the process returns to S103.

If the mode dial 60 has been set to the photographing mode (S103), the process proceeds to S106.

If the mode dial 60 has been set to another mode (S103), the system control circuit 5
0 executes a process according to the selected mode (S10
4) When the processing is completed, the process returns to S103.

The system control circuit 50 includes the power control means 8
0, it is determined whether or not the remaining capacity of the power supply 86 composed of a battery or the like or the operating condition has a problem in the operation of the image processing apparatus 100 (S106). After a predetermined warning is displayed by voice (S108), the process returns to S103.

If there is no problem with the power supply 86 (S10
6), the system control circuit 50 controls the recording medium 200 or 2
It is determined whether the operation state of the image processing device 10 has a problem in the operation of the image processing apparatus 100, particularly, the operation of recording and reproducing image data on a recording medium (S107).
After performing a predetermined warning display using an image or a sound using No. 4 (S108), the process returns to S103.

If there is no problem in the operation state of the recording medium 200 or 210 (S107), various setting states of the image processing apparatus 100 are displayed on the display unit 54 using images and sounds (S109). When the image display of the image display unit 28 is ON, the various setting states of the image processing apparatus 100 are displayed by the image display unit 28 using images and sounds.

The system control circuit 50 checks the setting of the quick review ON / OFF switch 68 (S11).
0), if the quick review is set to ON, the quick review flag is set (S111), and if the quick review is set to OFF, the quick review flag is released (S112).

The status of the quick review flag is
It is stored in the internal memory of the system control circuit 50 or the memory 52.

Subsequently, the system control circuit 50 checks the setting state of the image display ON / OFF switch 66 (S11).
3) If the image display is set to ON, an image display flag is set (S114), and the image display unit 28 is set.
Is set to an ON state (S115), and a through display state for sequentially displaying captured image data is set (S116), and the process proceeds to S119.

In the through display state, the image sensor 1
2. The data sequentially written in the image display memory 24 via the A / D converter 16, the image processing circuit 20, and the memory control circuit 22 are transferred to the memory control circuit 22, the D / A converter 26
The electronic finder function is realized by sequentially displaying the images through the image display unit 28 via the.

If the image display ON / OFF switch 66 is set to image display OFF (S113), the image display flag is cleared (S117), and the image display of the image display unit 28 is set to OFF. (S118),
Proceed to S119.

When the image display is OFF, the image display unit 28
The photographing is performed using the optical finder 104 without using the electronic finder function. In this case, it is possible to reduce the power consumption of the image display unit 28 and the D / A converter 26 that consume a large amount of power.

The state of the image display flag is stored in the internal memory of the system control circuit 50 or the memory 52.

Subsequently, the system control circuit 50 checks the setting state of the compression mode switch 72 (S119). If the image compression mode is set to the CCD RAW mode, the system control circuit 50 sets the CCD RAW mode flag (S12).
0), and proceed to S131 (see FIG. 3).

In the CCD RAW mode, image data is read out line by line in accordance with the pixel arrangement of the color filter of the image pickup device 14, and the data is read out from the memory 30 via the A / D converter 16 and the memory control circuit 22. The image data written into the storage medium 200 or 210 is read and recorded on the recording medium 200 or 210.

In the CCD RAW mode, an image signal captured by the image sensor 14 can be recorded on a recording medium as it is, so that high-quality recording can be performed, but the amount of image data to be recorded increases.

If the compression mode switch 72 has been set to the JPEG mode (S119), a JPEG mode flag is set (S121), and the flow advances to S131.

In the JPEG mode, the image sensor 14
A / D converter 16 and image processing circuit 2
0, the image data written in the memory 30 is read out via the memory control circuit 22, compressed to the compression ratio set by the compression / decompression circuit 32, and then recorded on the recording medium 200 or 210.

In the JPEG mode, since the image signal captured by the image sensor 14 can be compressed and recorded on a recording medium, the amount of image data to be recorded can be reduced and more recording can be performed. When the JPEG method, which is irreversible compression, is used for image compression, the image quality deteriorates according to the compression ratio.

The state of the compression mode flag is stored in the internal memory of the system control circuit 50 or the memory 52.

If the shutter switch SW1 has not been pressed (S131) (see FIG. 3), the flow returns to S103.

If the shutter switch SW1 is pressed (S131), the system control circuit 50 determines the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 (S132). Is set, the display state of the image display unit 28 is set to the freeze display state (S133), and the process proceeds to S134.

In the freeze display state, the image sensor 1
2. Rewriting of image data in the image display memory 24 via the A / D converter 16, the image processing circuit 20, and the memory control circuit 22 is prohibited, and the last written image data is transferred to the memory control circuit 22, D / A By displaying the image on the image display unit 28 via the converter 26, the frozen image is displayed on the electronic finder 28.

If the image display flag has been cleared (S132), the process proceeds to S134.

The system control circuit 50 performs a distance measuring process to focus the photographing lens 10 on the subject, and performs a photometric process to determine an aperture value and a shutter time (S13).
4). In the photometry processing, the flash setting is also performed if necessary. Details of the distance measurement / photometry processing S134 will be described later with reference to FIG.

After the distance measurement / photometry processing S134 is completed,
The system control circuit 50 determines the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 (S135). If the image display flag has been set, the display state of the image display unit 28 is skipped. The display state is set (S136), and the process proceeds to S137. Note that S1
The through display state at 36 is the same operation state as the through state at S116 (see FIG. 2).

When the shutter switch SW2 is not pressed (S
137) If the shutter switch SW1 is also released (S146), the process returns to S103.

If the shutter switch SW2 is pressed (S137), the system control circuit 50 determines the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 (S138). Is set, the display state of the image display unit 28 is set to the fixed color display state (S139), and the process proceeds to S161 (see FIG. 4).

In the fixed color display state, the image sensor 1
2. Instead of the captured image data written to the image display memory 24 via the A / D converter 16, the image processing circuit 20, and the memory control circuit 22, the replaced fixed color image data is replaced with the memory control circuit 22, By displaying the image on the image display unit 28 via the D / A converter 26, a fixed color image is displayed on the electronic finder 28.

If the image display flag has been cleared (S138), the process proceeds to S161.

The system control circuit 50 includes the image pickup device 12,
Exposure processing for writing captured image data to the memory 30 via the A / D converter 16, the image processing circuit 20, the memory control circuit 22, or directly from the A / D converter via the memory control circuit 22, and Using the memory control circuit 22 and, if necessary, the image processing circuit 20, the image data written in the memory 30 is read out, and a photographing process including a developing process for performing various processes is executed (S161).

The details of the photographing process S161 will be described later with reference to FIG.

After the photographing process S161 is completed, the system control circuit 50 determines the state of the compression mode flag stored in the internal memory of the system control circuit 50 or the memory 52 (S162).

<When the compression mode flag is the JPEG mode (corresponding to the first recording mode in the claims)> If the state of the compression mode flag is the setting of the JPEG mode (S162), the memory is processed by the photographing process S161. The image data written in 30 is read, and display image processing for transferring the image data to the image display memory 24 via the memory control circuit 22 is executed (S163).

The details of the display image processing S163 will be described later with reference to FIG.

The system control circuit 50 determines the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 (S164), and if the image display flag has been set, performs a quick review display. (S165). In this case, the image display unit 28 is always displayed as an electronic finder even during shooting, and a quick review display immediately after shooting is also performed.

If the image display flag has been released (S164), the state of the quick review flag stored in the internal memory of the system control circuit 50 or the memory 52 is determined (S165), and the quick review flag is set. Then, turn on the image display of the image display unit 28
The state is set (S166), and a quick review display is performed (S167).

In this case, even if the image display of the image display unit 28 is set to OFF, the electronic finder function is not required for power saving or because the photographing is performed using the optical finder 104. If the quick review function is set by the quick review switch 68,
Immediately after photographing, the photographed image is automatically displayed on the image display unit 28.
This makes it possible to provide power-saving and convenient functions for checking captured images.

The image display flag is released (S164), and
If the quick review flag has also been cleared (S1
65), while the image display unit 28 is in the OFF state, S168
Proceed to. In this case, even after shooting, the image display unit 2
8 has disappeared and no quick review display is performed. This is a usage method in which it is not necessary to confirm a shot image immediately after shooting as in the case where shooting is continued using the optical viewfinder 104, and power saving is emphasized without using the electronic viewfinder function of the image display unit 28. .

The system control circuit 50 reads out the photographed image data written in the memory 30 and performs various kinds of image processing using the memory control circuit 22 and the image processing circuit 20 as necessary. After performing a compression process of performing an image compression process according to the mode set by using (S168), the recording medium 200 or 210 such as a memory card or a compact flash card is transmitted via the interface 90 or 94 and the connector 92 or 96.
A recording process of writing image data to the
169).

The details of this compression processing S168 will be described later with reference to FIG.

When the image display unit 28 is ON, while the image data is being written to the recording medium 200 or 210, a display such as "BUSY" indicating that the writing operation is being performed is displayed. This is performed on the display unit 28.

Further, in the display unit 54, for example, an LED
The display of the recording medium writing operation such as blinking is also performed.

After performing the recording process (S169), the process proceeds to S14.
0 (see FIG. 3).

<When the compression mode flag is the CCD RAW mode (corresponding to the second recording mode)> If the state of the compression mode flag is the setting of the CCD RAW mode (S162), the system control circuit 50 Then, the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 is determined (S170), and if the image display flag is set, the display state of the image display unit 28 is set to the fixed color display state. After setting (S173), S
Proceed to 174.

In this case, by setting the image display unit 28 to the fixed color display state, the system control circuit 50 uses the image display unit 28 to display the recording progress in the recording process S175 described later. Can be done.

In the recording process in the CCD RAW mode, the image signal captured by the image sensor 14 can be recorded on a recording medium as it is, so that high-quality recording can be performed. More. For this reason, displaying the recording progress state is a convenient function for the user.

If the image display flag has been cleared (S170), the state of the quick review flag stored in the internal memory of the system control circuit 50 or the memory 52 is determined (S171), and the quick review flag is set. Then, turn on the image display of the image display unit 28
State (S172), the display state of the image display unit 28 is set to a fixed color display state (S173), and the process proceeds to S174.

In this case, similarly, by setting the image display unit 28 to the fixed color display state, the system control circuit 5
In the case of 0, the display indicating the recording progress state in the recording process S175 described later can be performed using the image display unit 28.

The image display flag is cleared (S170), and
If the quick review flag has also been cleared (S1
71), S175 while the image display unit 28 is in the OFF state
Proceed to. In this case, a recording process S175 described later is performed without displaying the recording progress state on the image display unit 28.

The system control circuit 50 controls the image display unit 28
While the recording progress state of the recording process S175 is displayed (S
174) In the photographing process S161, the image data is read as it is for each line according to the pixel array of the color filter of the image sensor 14, and written to the memory 30 via the A / D converter 16 and the memory control circuit 22. The read image data is read out and recorded on the recording medium 200 or 210 such as a memory card or a compact flash card via the interface 90 or 94 and the connector 92 or 96 (S175).

When the image display unit 28 is ON, while the image data is being written to the recording medium 200 or 210, a display such as "BUSY" indicating that the writing operation is being performed is displayed. This is performed on the display unit 28.

Further, in the display unit 54, for example, an LED
The display of the recording medium writing operation such as blinking is also performed.

This recording processing S175 is performed by the image display unit 28.
If the image display is ON, the display of the recording progress state is updated (S174), and the process is executed until the recording on the recording medium 200 or 210 is completed (S176).

When the recording process is completed (S176),
The system control circuit 50 determines the state of the image display flag stored in the internal memory of the system control circuit 50 or the memory 52 (S177). If the image display flag has been set, the process proceeds to S179.

If the image display flag has been released (S177), the state of the quick review flag stored in the internal memory of the system control circuit 50 or the memory 52 is determined (S178), and the quick review flag is set. If so, the process proceeds to S179.

The image display flag is released (S177), and
If the quick review flag has also been cleared (S1
78), while the image display unit 28 is in the OFF state, S140
(See FIG. 3).

The system control circuit 50 controls the image display unit 28
After the display of the recording progress state is ended (S179),
In the photographing process S161, the image data is read as it is for each line according to the pixel array of the color filter of the image sensor 14, and is written to the memory 30 via the A / D converter 16 and the memory control circuit 22. The data is read out, various processes are performed using the image processing circuit 20, and a display image process for transferring the data to the image display memory 24 via the memory control circuit 22 is executed (S180). When the photographed image is ready to be reproduced, the quick review display is performed (S
181).

The details of the display image processing S180 will be described later with reference to FIG.

As described above, according to this embodiment, the CCDR
Immediately after the photographing / recording processing in the AW mode, the display image processing is executed, and the photographed image is automatically displayed on the image display unit 28.
In addition to displaying the progress of the recording operation during the recording of the image data, it is possible to provide a convenient function for confirmation of the photographed image and confirmation-related work.

Further, even if the image display of the image display unit 28 is set to OFF, the quick review is performed even if the image display of the image display unit 28 is set to OFF in order to save power or to perform photographing using the optical viewfinder 104, so that the electronic viewfinder function is unnecessary. If the quick review function is set by the switch,
Immediately after recording, the captured image is automatically displayed on the image display unit 28
This makes it possible to provide power-saving and convenient functions for checking captured images.

After performing the quick review display (S18)
1) The process proceeds to S140.

A series of processing in the JPEG mode (S163
To S169) or when a series of processes in the CCD RAW mode is completed (S170 to S181), if the shutter switch SW2 is pressed (S140).
(See FIG. 3). The system control circuit 50 determines the state of the continuous shooting flag stored in the internal memory of the system control circuit 50 or the memory 52 (S141). S161 to perform shooting
Return to and perform the next shooting.

If the continuous shooting flag is not set (S
141) until the shutter switch SW2 is released (S
140), repeat the current process.

As described above, according to this embodiment, in the operation setting state in which the quick review display is performed immediately after shooting,
If the shutter switch SW2 has been pressed when the recording processes S169 and S175 are completed, the quick review display on the image display unit 28 is continued until the shutter switch SW2 is released, and the user must carefully check the captured image. Can be performed.

A series of processing in the JPEG mode (S163
To S169) or when a series of processing in the CCD RAW mode (S170 to S181) is completed, the shutter switch SW2 has been released, or the quick review display is continued by pressing and holding the shutter switch SW2. After confirming the photographed image, the shutter switch S
If W2 has been released (S140), after a predetermined minimum review time has elapsed (S142), S2 is released.
Proceed to 143.

As described above, according to the present embodiment, the quick review display on the image display unit 28 is continued for a predetermined period of time, so that the captured image can be surely confirmed, and unnecessarily long. By continuing the time quick review display, it is possible to prevent the next shooting opportunity from being lost.

The minimum review time may be a fixed value, may be arbitrarily set by the user, or may be arbitrarily set or selected by the user within a predetermined range. , May be set by any method.

If the image display flag has been set (S143), the system control circuit 50 displays the image display unit 28.
Is set to the through display state (S144),
Proceed to S146.

In this case, after the photographed image is confirmed by the quick review display on the image display unit 28, a through display state in which image data photographed for the next photographing is sequentially displayed can be provided.

If the image display flag has been released (S143), the image display of the image display unit 28 is set to the OFF state (S145), and the flow advances to S146.

In this case, after the captured image is confirmed by the quick review display on the image display unit 28, the function of the image display unit 28 is stopped to save power, and the image display unit 28 or D The power consumption of the / A converter 26 and the like can be reduced.

If the shutter switch SW1 has been pressed (S146), the system control circuit 50
The process returns to S137 to prepare for the next shooting.

If the shutter switch SW1 has been released (S146), the system control circuit 50
After a series of photographing operations, the process returns to S103.

FIG. 5 is a detailed flowchart of the distance measurement / photometry processing in S134 of FIG.

The system control circuit 50 reads the charge signal from the image sensor 14 and sequentially reads the photographed image data into the image processing circuit 20 via the A / D converter 16 (S20).
1). Using the sequentially read image data, the image processing circuit 20 uses the TTL (through-the-lens) method A
Predetermined calculations used for E (auto exposure) processing, EF (flash pre-emission) processing, and AF (auto focus) processing are performed.

In each of the processes here, a necessary portion of the total number of photographed pixels is extracted by cutting out necessary portions and used for calculation. Thus, in each of the TTL-based AE, EF, AWB, and AF processes, it is possible to perform an optimal calculation for each of the different modes such as the center-weighted mode, the average mode, and the evaluation mode.

Using the calculation result in the image processing circuit 20,
The system control circuit 50 performs AE control using the exposure control means 40 until the exposure (AE) is determined to be appropriate (S202).

Using the measurement data obtained by the AE control,
The system control circuit 50 determines whether or not a flash is necessary (S204), and if necessary, sets a flash flag and charges the flash 48 (S20).
5).

If it is determined that the exposure (AE) is appropriate (S
202), the measurement data and / or the setting parameters are stored in the internal memory of the system control circuit 50 or the memory 52.

The system control circuit 5 uses the calculation results of the image processing circuit 20 and the measurement data obtained by the AE control.
0 indicates that the AWB control is performed by adjusting the color processing parameters using the image processing circuit 20 until the white balance (AWB) is determined to be appropriate (S206) (S207).

If it is determined that the white balance (AWB) is appropriate (S206), the measurement data and / or the setting parameters are stored in the internal memory of the system control circuit 50 or the memory 52.

Using the measurement data obtained by the AE control and the AWB control, the system control circuit 50 determines whether or not the distance measurement (AF) is in focus (S208).
Is used to perform AF control (S209).

If it is determined that the distance measurement (AF) is in focus (S
208), the measurement data and / or the setting parameters are stored in the internal memory or the memory 52 of the system control circuit 50, and the distance measurement / photometry processing routine S134 ends.

FIG. 6 is a detailed flowchart of the photographing process in S161 of FIG. System control circuit 50
Is the internal memory of the system control circuit 50 or the memory 5
In accordance with the photometric data stored in Step 2, the exposure controller 40 opens the shutter 12 having the aperture function according to the aperture value to expose the image sensor 10 (S301, S30).
2).

The flash 48
Is determined (S303), and if necessary, a flash is emitted (S304).

The system control circuit 50 waits for the end of exposure of the image sensor 12 in accordance with the photometric data (S305), closes the shutter 12 (S306), reads out a charge signal from the image sensor 14, reads the charge signal from the A / D converter 16, Processing circuit 2
0, the memory 30 via the memory control circuit 22 or directly from the A / D converter 16 via the memory control circuit 22.
Then, the data of the photographed image is written in (S307). When a series of processing is completed, the photographing processing routine S161 ends.

FIG. 7 is a detailed flowchart of the display image processing in S163 or S180 in FIG.

If frame processing needs to be performed in accordance with the set photographing mode (S401), the system control circuit 50 uses the memory control circuit 22 and, if necessary, the image processing circuit 20 to store the memory 30 in the memory 30. The image data written in is read and the vertical addition processing (S402)
After the color processing (S403) is sequentially performed, the processed image data is written in the memory 30.

The system control circuit 50 reads out the image data from the memory 30 and transfers the display image data to the image display memory 24 via the memory control circuit 22 (S4).
04).

When a series of processing is completed, the display image processing routine S163 or S180 is completed.

FIG. 8 is a detailed flowchart of the compression process in S168 of FIG.

The system control circuit 50 reads out the photographed image data written in the memory 30 by using the memory control circuit 22 and, if necessary, the image processing circuit 20 to reduce the vertical / horizontal pixel ratio of the image sensor 14 to 1: 1. After the pixel square processing for interpolation is performed (S501), the processed image data is written to the memory 30.

Then, the image data written in the memory 30 is read out, and the image compression processing corresponding to the set mode is performed by the compression / decompression circuit 32 (S502).

When the image compression processing is completed, the compression processing routine S168 ends.

The present embodiment has been described with reference to FIG.

In the description of the embodiment, the types of the compression mode are described as the JPEG mode and the CCDRAW mode. However, the image mode corresponding to the input display signal form in the image display unit 28 and the image pickup device 14 Any other combination of image modes corresponding to the output signal form may be used.

Also in this case, when the image mode corresponding to the input display signal form on the image display unit 28 is selected, the recording can be performed while promptly confirming the reproduction of the photographed image immediately after photographing. On the other hand, when the image mode corresponding to the output signal form in the image sensor 14 is selected,
In addition to performing recording utilizing the image information described above, it is also possible to confirm the reproduction of a captured image. The user can select any one of the above-described image modes at any time according to the situation at the shooting site and the shooting application to perform shooting.

In the above description, when the image display unit 28 is turned off, all the elements constituting the image display unit 28 are turned off.
There is no problem just to do F. Even in this case, it is possible to provide a function of confirming a captured image and saving power.
For example, in the case where the image display unit 28 includes an LCD and a backlight, even if only the backlight is turned off while the LCD is on, a function to perform both confirmation of a captured image and power saving as described in the embodiment. Can be provided.

The image display ON / OFF switch 66
The quick review ON / OFF switch 68 has been described as an independent configuration.
The FF switch 66 and the quick review ON / OFF switch 68 are combined into one combined switch, and only the image display ON / the image display ON / the image display ON / quick review is performed.
Of course, there is no problem even if the configuration includes three positions of the FF.

Then, it has been described that when the instruction to end the quick review display by the image display unit 28 is given, the minimum review time for continuing the quick review display for the minimum time is determined, but the minimum review time is not set. Of course, there is no problem. In this case, FIG.
In this case, the processing may be such that the processing for judging the elapse of the minimum review time in S142 is removed.

[0165] In addition, a configuration is provided in which a dedicated image display unit for performing a through display and a quick review display is provided.
Image display ON / OFF for ON / OFF of those display units
The configuration may be made in accordance with the settings of the switch and the quick review ON / OFF switch. Again,
As in the description of the embodiment, it is possible to provide a function of both confirming a captured image and saving power.

In the above description, when the image display ON / OFF switch is ON, quick review display immediately after photographing is performed regardless of the setting of the quick review ON / OFF switch. In the case of ON, whether or not to perform quick review display may be determined according to the setting of the quick review ON / OFF switch.

Note that the recording media 200 and 210 are PC
Not only memory cards such as MCIA cards and compact flashes, hard disks, but also micro DATs, magneto-optical disks, optical disks such as CD-Rs and CD-WRs,
Of course, there is no problem even if it is constituted by a phase change optical disk such as a DVD.

There is no problem if the recording media 200 and 210 are composite media in which a memory card and a hard disk are integrated. Further, there is no problem if a part of the composite medium is detachable.

In the description of the embodiments, the recording media 200 and 210 have been described as being separated from the image processing apparatus 100 and can be connected arbitrarily. Of course, there is no problem even if it is fixed to the device 100.

Further, the recording medium 20 is stored in the image processing apparatus 100.
0 or 210 may be configured to be connectable to a single or a plurality of arbitrary numbers.

The recording medium 2 is stored in the image processing apparatus 100.
The configuration in which the recording mediums 00 and 210 are mounted has been described. However, the recording medium may have any combination of a single recording medium or a plurality of recording media.

[0172]

As described above, according to the present invention,
It is possible to select whether to reproduce and display the photographed image as it is immediately after photographing and record it as it is, or to record it by taking advantage of the image quality of the photographed image and then reproduce and display the photographed image according to the photographing situation, photographing purpose, and the like.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment.

FIG. 2 is a flowchart showing a main routine.

FIG. 3 is a flowchart showing a main routine.

FIG. 4 is a flowchart showing a main routine.

FIG. 5 is a flowchart showing details of distance measurement / photometry processing;

FIG. 6 is a flowchart showing details of a photographing process;

FIG. 7 is a flowchart showing details of display image processing;

FIG. 8 is a flowchart showing details of compression processing;

[Explanation of symbols]

 14 Image sensor 28 Image display unit 50 System control circuit 200 Recording medium

Claims (7)

[Claims] An image processing apparatus for recording, reproducing, and displaying a captured still image and / or a moving image on a recording medium, comprising: an imaging unit, a recording unit, and a display unit, wherein an output image of the imaging unit is provided. A first recording mode in which a signal is displayed by the display means, and the first recording mode in which the recording means is recorded in the displayed image signal form, and an output image signal of the imaging means is recorded in the recording means in the form of a captured image signal, An image processing apparatus having a second recording mode displayed by the display means. 2. An image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, comprising: an imaging unit, a signal processing unit, a recording unit, and a display unit. The image processing apparatus has a first signal form corresponding to an input image signal of the display means and a second signal form corresponding to an output image signal of the imaging means, and further includes an output image of the imaging means. A signal is converted by the signal processing means into the first signal form, displayed on the display means, and then recorded on the recording means.
Recording mode, and after recording the output image signal of the imaging means in the recording means in the second signal form, performing a process of converting the signal to the first signal form by the signal processing means, and in the display means And a second recording mode for displaying. 3. An image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, comprising: an imaging unit, a signal processing unit, a compression unit, a recording unit, a display unit. Wherein the image processing apparatus has a first signal form corresponding to an input image signal of the display means, and a second signal form corresponding to an output image signal of the image pickup means, further comprising: Means for converting the output image signal of the means into the first signal form by the signal processing means and displaying it on the display means, and compressing the processed image signal by the compression means to the recording means. A first recording mode for recording, and after recording an output image signal of the imaging means on the recording means in the second signal form, the recorded image signal is processed by the signal processing means in the first signal form. Change to And a second recording mode for displaying the processed image signal on the display means. 4. A control method of an image processing apparatus for recording, reproducing and displaying a captured still image and / or a moving image on a recording medium, comprising displaying an output image signal of an imaging unit on a display unit, and displaying the displayed image signal. A step of a first recording mode for recording on the recording means in the form of a signal, and recording the output image signal of the imaging means on the recording means in the form of a captured image signal,
An image processing apparatus comprising: a step of a second recording mode to be displayed by a display unit; and a step of selecting one of the step of the first recording mode and the step of the second recording mode. Control method. 5. A control method of an image processing apparatus for recording and reproducing and displaying a captured still image and / or moving image on a recording medium, wherein an output image signal of the imaging unit corresponds to an input image signal of the display unit. A first recording mode step of performing a process of converting to a signal form of 1 and displaying the result on the display unit, and then recording on the recording unit, and a step of corresponding the output image signal of the imaging unit to the output image signal of the imaging unit. A step of a second recording mode in which the recording is performed by the recording means in accordance with the second signal form and then converted to the first signal form and displayed on the display means; Selecting one of the steps of the second recording mode. 6. A method for controlling an image processing apparatus for recording, reproducing and displaying a captured still image and / or moving image on a recording medium, wherein an output image signal of the imaging unit corresponds to an input image signal of the display unit. A first recording mode step of compressing the processed image signal and recording the compressed image signal on the recording means after performing the processing for conversion to the signal form of 1 and displaying the image signal on the display means; After recording in the recording means in the second signal form corresponding to the output image signal of the imaging means, the recorded image signal is converted to the first signal form, and the processed image signal is converted to the first signal form. Image processing, comprising: a step of a second recording mode to be displayed on a display means; and a step of selecting either the step of the first recording mode or the step of the second recording mode. How to control the device. 7. A storage medium storing a program for realizing the control method for an image processing apparatus according to claim 4. Description: