WO2018188438A1

WO2018188438A1 - Image display method and apparatus

Info

Publication number: WO2018188438A1
Application number: PCT/CN2018/078544
Authority: WO
Inventors: 居正; 乐振晓; 李文斌
Original assignee: 杭州海康威视数字技术股份有限公司
Priority date: 2017-04-11
Filing date: 2018-03-09
Publication date: 2018-10-18
Also published as: CN108696710B; CN108696710A

Abstract

Provided in the embodiments of the present application are an image display method and apparatus, the method comprising: acquiring a video signal to be processed, the video signal to be processed comprising image data to be processed and blanking data corresponding thereto; when the image data to be processed does not fit the display area, acquiring the position of the edges between the image data to be processed and the blanking data relative to the display area; on the basis of the position, adjusting the image data to be processed to fit the display area; and displaying the adjusted image data in the display area. The adjusted image data fits the display area, thus improving the image display effects.

Description

Image display method and device

The present application claims priority to Chinese Patent Application No. 200910233038.7, entitled "An Image Display Method and Apparatus", filed on April 11, 2017, the entire disclosure of which is incorporated herein by reference. .

Technical field

The present application relates to the field of image processing technologies, and in particular, to an image display method and apparatus.

Background technique

In the process of displaying a video frame image, there is usually a case where the image does not match the display area, for example, the image is smaller than the display area, resulting in a black border in the display area; or the image is too large, resulting in incomplete display of the image content; or an image Offset, the display area has both black borders and full image content.

The above situation greatly reduces the display effect of the image.

Summary of the invention

An object of the embodiments of the present application is to provide an image display method and apparatus, which improve the display effect of an image.

To achieve the above objective, an embodiment of the present application discloses an image display method, including:

Obtaining a to-be-processed video signal, where the to-be-processed video signal includes image data to be processed and corresponding blanking data;

Determining whether the image data to be processed matches the display area;

If not, obtaining a position of the data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data;

Adjusting the image data to be processed to match the display area according to the acquired position, and obtaining the adjusted image data;

The adjusted image data is displayed in the display area.

Optionally, the step of determining whether the image data to be processed matches the display area may include:

Determining, according to the recorded matching result of the historical image data before the image data to be processed and the display area, whether the image data to be processed matches the display area;

Or determining, according to the position of the recorded historical data boundary relative to the display area, whether the image data to be processed matches the display area; wherein the historical data boundary is: a historical video before the video signal to be processed The boundary between the image data in the signal and its blanking data;

Or determining a data boundary between the image data to be processed and the corresponding blanking data; and determining, according to the determined position of the data boundary relative to the display area, whether the image data to be processed matches the display area.

Optionally, the step of acquiring a location of the data boundary relative to the display area includes:

Acquiring a position of the recorded historical data boundary relative to the display area as a position of the data boundary relative to the display area; wherein the historical data boundary is: in a historical video signal before the to-be-processed video signal The boundary between the image data and its blanking data;

Alternatively, determining a data boundary between the image data to be processed and its corresponding blanking data; obtaining a position of the determined data boundary with respect to the display area.

Optionally, the step of determining a boundary between the image data to be processed and the corresponding blanking data may include:

In the to-be-processed video signal, searching for a target pixel point whose pixel value satisfies a preset rule as the blanking data;

Determining a boundary between the image data to be processed and the blanking data according to the found target pixel.

Optionally, the step of searching for a target pixel point whose pixel value meets a preset rule in the to-be-processed video signal may include:

And adjusting a pixel threshold range of the image data to a preset threshold range, where a maximum value in the preset threshold range is smaller than a pixel value of the blanking data;

In the to-be-processed video signal, a pixel point whose pixel value is greater than a maximum value in the preset threshold range is searched for as a target pixel point.

Optionally, after the step of determining a boundary between the image data to be processed and the corresponding blanking data according to the found target pixel, the method may further include:

The adjusted pixel threshold range is restored from the preset threshold range to the pixel threshold range before the adjustment.

Optionally, in the to-be-processed video signal, the step of searching for a pixel value that meets a preset rule of the pixel value may include:

Starting from a central pixel point of the video signal, searching for a target pixel point whose pixel value satisfies a preset rule from four directions of up, down, left, and right, respectively;

Recording the position of the coordinate value of the found target pixel relative to the display area.

Optionally, the step of displaying the adjusted image data in the display area includes:

Determining whether the resolution of the adjusted image data is equal to a preset resolution;

If yes, displaying the adjusted image data directly in the display area;

If not, the resolution of the adjusted image data is adjusted to be equal to the preset resolution, and the image data after the resolution is adjusted is displayed in the display area.

In order to achieve the above objective, an embodiment of the present application further discloses an image display apparatus, including:

a first acquiring module, configured to acquire a to-be-processed video signal, where the to-be-processed video signal includes to-be-processed image data and corresponding blanking data;

a determining module, configured to determine whether the image data to be processed matches the display area; if not, triggering the second acquiring module;

a second acquiring module, configured to acquire a position of the data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data;

And an adjustment module, configured to adjust the image data to be processed to match the display area according to the acquired position, to obtain the adjusted image data;

And a second display module, configured to display the adjusted image data in the display area.

Optionally, the determining module is specifically configured to:

Optionally, the second obtaining module includes: a first acquiring submodule, or a second acquiring submodule;

a first obtaining sub-module, configured to acquire a position of a recorded historical data boundary with respect to the display area as a position of the data boundary relative to the display area; wherein the historical data boundary is: the to-be-processed The boundary between the image data and its blanking data in the historical video signal before the video signal;

a second obtaining submodule, configured to determine a data boundary between the image data to be processed and its corresponding blanking data; and obtain a position of the determined data boundary relative to the display area.

Optionally, the second obtaining submodule includes:

a search sub-module, configured to search, in the to-be-processed video signal, a target pixel point whose pixel value satisfies a preset rule, where the target pixel point is the blanking data;

And a determining submodule, configured to determine a boundary between the image data to be processed and the blanking data according to the found target pixel.

Optionally, the searching submodule is specifically configured to:

Adjusting a pixel threshold range of the image data to a preset threshold range, where a maximum value in the preset threshold range is smaller than a pixel value of the blanking data; in the to-be-processed video signal, a search pixel value is greater than A pixel point of a maximum value in a preset threshold range is used as a target pixel point.

Optionally, the device further includes:

a recovery module, configured to restore the adjusted pixel threshold range from the preset threshold range to the pixel before the adjustment after determining, by the determining submodule, a boundary between the image data to be processed and the blanking data Threshold range.

Optionally, the searching submodule includes:

a searching unit, configured to use a central pixel point of the video signal as a starting point, and search for a target pixel point whose pixel value satisfies a preset rule from four directions of upper, lower, left, and right, respectively;

And a saving unit, configured to record a position of the coordinate value of the found target pixel relative to the display area.

Optionally, the second display module is specifically configured to:

If yes, displaying the adjusted image data directly in the display area;

In order to achieve the above object, an embodiment of the present application further discloses an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;

a memory for storing a computer program;

The processor is configured to implement any of the above image display methods when executing a program stored on the memory.

In order to achieve the above object, an embodiment of the present application further discloses an executable program code for being executed to execute any of the image display methods described above.

In order to achieve the above object, an embodiment of the present application further discloses a computer readable storage medium for storing executable program code, where the executable program code is used to be executed to perform any of the above An image display method.

Applying the embodiment of the present application, the video signal to be processed is obtained, and the to-be-processed video signal includes the image data to be processed and the corresponding blanking data. When the image data to be processed does not match the display area, the pending image is acquired. The position of the boundary between the image data and the blanking data with respect to the display area, the image data to be processed is adjusted to match the display area according to the position, and the adjusted image data is displayed in the display area. It can be seen that the adjusted image data matches the display area, thus improving the display effect of the image.

Of course, implementing any of the products or methods of the present application does not necessarily require that all of the advantages described above be achieved at the same time.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application and the technical solutions of the prior art, the following description of the embodiments and the drawings used in the prior art will be briefly introduced. Obviously, the drawings in the following description are only Some embodiments of the application may also be used to obtain other figures from those of ordinary skill in the art without departing from the scope of the invention.

FIG. 1 is a schematic flowchart diagram of an image display method according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of device interaction according to an embodiment of the present application;

3 is a schematic flowchart of a specific implementation manner provided by an embodiment of the present application;

4 is a schematic structural diagram of an image display device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

detailed description

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In order to solve the above technical problem, the embodiment of the present application provides an image display method and device, which can be applied to various devices capable of performing image processing, and is not limited thereto. The image display method provided by the embodiment of the present application is first described in detail below.

An embodiment of the present invention provides an image display method, including: acquiring a video signal to be processed, where the to-be-processed video signal includes image data to be processed and corresponding blanking data; and determining whether the image data to be processed is displayed and displayed The area is matched; if not, the position of the data boundary relative to the display area is obtained; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data; according to the acquired position, The image data to be processed is adjusted to match the display area to obtain adjusted image data; and the adjusted image data is displayed in the display area. In this solution, the adjusted image data matches the display area, thus improving the display effect of the image.

FIG. 1 is a schematic flowchart of an image display method according to an embodiment of the present disclosure, including:

S101: Acquire image data and corresponding blanking data.

S101 may be: acquiring a video signal to be processed, where the to-be-processed image signal includes image data to be processed and corresponding blanking data. In this embodiment, the image data and the blanking data acquired in S101 are collectively referred to as a video signal to be processed. For convenience of description, the image data included in the video signal to be processed is referred to as image data to be processed.

Those skilled in the art can understand that the blanking data corresponding to the image data is: data separating each frame of image, or blanking data is data surrounded by image data; when performing image display, blanking data is not displayed. In addition, in general, the device for performing the solution includes a video capture chip and an image processor, and the blanking data is obtained when the video capture chip and the image processor are usually connected in an external synchronization manner.

For example, the pixel value of the blanking data may be a fixed value, for example, may be 255; or, the pixel value of the blanking data may also be a fixed value range, for example, 236-255.

In an implementation manner, the device that performs the solution can obtain the collected video stream in real time. In this case, the to-be-processed video signal may be the current frame video signal, and the to-be-processed image data may be the current frame image data.

S102: Determine whether the image data matches the display area, if yes, execute S103, and if no, execute S104. The image data is also the image data to be processed described above.

As an implementation manner, it may be determined whether the image data of each frame in the data stream matches the display area. For convenience of description, one frame of image data is taken as an example for description, and the image data to be processed is taken as an example. Description:

Determining a data boundary between the image data to be processed and its corresponding blanking data; determining a position of the data boundary with respect to the display area; and determining, according to the determined position, whether the image data to be processed matches the display area.

When S102 is executed, the image data to be processed is not displayed, but it can be understood that before the image data to be processed is displayed, it is necessary to determine the position to be displayed corresponding to the image data to be processed, that is, the position of the image data to be processed with respect to the display area.

According to the above description, the blanking data is data surrounded by the image data, and therefore, according to the boundary between the blanking data and the image data, it can be determined whether there is an edge overflow display area (image large or image shift) or image of the image data The edge of the data is inside the display area (the image is too small or the image is shifted); if it is, it indicates that the result of the determination in S102 is NO; on the contrary, if the above is not the case, the result of the determination in S102 is YES.

As another implementation manner, S102 may include: determining, according to the recorded matching result of the historical image data before the image data to be processed and the display area, whether the image data to be processed matches the display area.

For example, the video signal acquired in S101 may be a current frame video signal, where the current frame image data and its corresponding blanking data are included. When the history video signal before the current frame video signal is processed, the matching result of the history frame image data and the display area can be recorded. It can be understood that, for the same video stream, the matching result of the image data of each frame and the display area is generally the same. Therefore, it can be determined whether only one frame or part of the frame image data in the video stream matches the display area, and records Match results, other frames refer to the recorded matching results.

In this embodiment, the process of processing one frame or partial frame image data in the video stream may be similar to the process of processing the image data to be processed in the above content. Alternatively, other methods may be employed. For example, it may be detected whether there is an abnormality in the data displayed in the display area, and if so, the matching result of the recorded history image data and the display area does not match.

Specifically, after displaying the image data of the first few frames of the video, it is possible to detect whether there is a black border in the display area, or whether the displayed data overflows the display area, etc.; if there is an abnormality, the displayed image data and the display area are not Matching, on the contrary, if there is no abnormality, it means that the above image data matches the display area.

A person skilled in the art can understand that after displaying the first several frames of image data in the video stream, it is determined whether the displayed image data matches the display area, and the matching result is recorded; and then, the subsequent image in the video stream When the data is processed, the matching result can be directly obtained.

Alternatively, as another implementation manner, S102 may include: determining, according to a position of the recorded historical data boundary relative to the display area, whether the image data to be processed matches a display area; wherein the historical data boundary is : a boundary between the image data and the blanking data in the historical video signal before the video signal to be processed.

For example, when processing the historical video signal before the current frame video signal, the position of the historical data boundary relative to the display area may be recorded, that is, between the historical frame image data and its corresponding blanking data. boundary. It can be understood that, for the same video stream, the position of the data boundary in each frame of the video signal is generally the same with respect to the display area. Therefore, it is possible to determine only the data boundary in the video signal of one frame or part of the frame in the video stream. The position of the area is displayed and recorded, and other frames refer to the recorded position.

In this embodiment, the process of processing one frame or part of the frame image data in the video stream may be similar to the process of processing the image data to be processed in the above content, and details are not described herein again.

S103: Display the image data in the display area. The image data is also the image data to be processed described above.

If there is no case where the image data to be processed does not match the display area, the blanking data may be discarded, and the image data to be processed is displayed in the display area.

S104: Determine an image boundary according to the blanking data.

S104 may be: acquiring a position of a data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data.

As an implementation manner, S104 may include: acquiring a position of a recorded historical data boundary with respect to the display area as a position of the data boundary relative to the display area; wherein the historical data boundary is: The boundary between the image data and its blanking data in the historical video signal before the video signal to be processed.

As described above, for the same video stream, the position of the data boundary in each frame of the video signal is generally the same relative to the display area, and therefore, it is possible to determine only the data boundary in the video signal of one frame or part of the frame in the video stream. The position of the display area is recorded and recorded, and other frames refer to the recorded position.

Or, as another implementation manner, the position of the data boundary relative to the display area may be determined for each frame of the video signal in the data stream. For convenience of description, a video signal of one frame is taken as an example for description. The following takes the video signal to be processed as an example:

S104 may include determining a data boundary between the image data to be processed and its corresponding blanking data; obtaining a position of the determined data boundary relative to the display area.

Specifically, determining a boundary between the image data to be processed and the corresponding blanking data may include: searching, in the to-be-processed video signal, a target pixel whose pixel value meets a preset rule, as the Implicit data; determining a boundary between the image data to be processed and the blanking data according to the found target pixel.

A person skilled in the art can understand that the pixel value of the blanking data is usually not less than the pixel value of the image data, and the preset rule may be “the largest pixel value”, or the preset rule may also be “the pixel value is greater than the preset value”. Alternatively, it may be other, and is not limited in specific terms. The pixel points found can be understood as blanking data.

In general, there are two types of pixel thresholds for image data: 0-255 and 16-235. The pixel threshold range can be understood as the range of the minimum allowed pixel value and the maximum allowed pixel value. Blanking data acts as a marker boundary. Typically, the blanking data has a pixel value of 255.

If the image data adopts a pixel threshold range of 16-235, there will be no pixel points with a pixel value of 255 in the image data, so that the blanking data can be directly distinguished.

If the image data uses a pixel threshold range of 0-255, there may also be pixel points with a pixel value of 255 in the image data, so that the blanking data cannot be effectively distinguished.

As an implementation manner, in the to-be-processed video signal, searching for a target pixel point whose pixel value meets a preset rule may include:

Specifically, it may be determined whether a pixel value of the blanking data is greater than a maximum value in a pixel threshold range of the image data; if yes, in the to-be-processed video signal, directly searching for a pixel value greater than the pixel threshold range a pixel point of the maximum value as the target pixel point; if not, first adjusting the pixel threshold range to a preset threshold range, and a maximum value in the preset threshold range is smaller than a pixel value of the blanking data; And in the to-be-processed video signal, a pixel point whose pixel value is greater than a maximum value in the preset threshold range is searched for as a target pixel point.

The process of adjusting the threshold range of the pixel may be: adjusting the pixel values of all the pixels in the image data, and adjusting the pixel values of all the pixels in the range of 16-235; or, for the image data, Pixels with pixel values greater than 235 and pixels with pixel values less than 16 are adjusted. In the adjusted image data, there are no more pixel points with pixel values greater than 235 and pixels with pixel values less than 16.

For example, the first case:

If the pixel value of the blanking data is 255, and the pixel threshold range of the image data is 16-235; determining that the pixel value of the blanking data is greater than the maximum value in the pixel threshold range of the image data, in this case, A pixel point with a pixel value greater than 235 is directly searched for as a target pixel point in the acquired video signal, and the target pixel point can be understood as blanking data.

The second case:

If the pixel value of the blanking data is 255, and the pixel threshold range of the image data is 0-255, it is determined that the pixel value of the blanking data is not greater than the maximum value in the pixel threshold range of the image data; in this case, The pixel threshold range of the image data is first adjusted to a preset threshold range, and the maximum value in the preset threshold range is smaller than the pixel value 255 of the blanking data, and the preset threshold range is assumed to be 16-235.

As described above, by adjusting the pixel threshold range of the image data to 16-235, and there is no pixel point having a pixel value of 255 in the image data, the blanking data can be effectively distinguished. Then, a pixel point with a pixel value greater than 235 is searched for as a target pixel point in the acquired video signal, and the target pixel point can be understood as blanking data.

For example, the pixel value of the blanking data is not limited to 255, and may be any value greater than the maximum value in the preset threshold range, such as any value between 236 and 255. In this way, finding the target pixel point, that is, finding the pixel point whose pixel value is between 236 and 255, the pixel point found can be understood as blanking data, and the blanking data is found, and the blanking data can be determined. The boundary between image data.

In the second case, after determining the boundary between the image data to be processed and the corresponding blanking data, the adjusted pixel threshold range may be restored from the preset threshold range to the pixel threshold range before the adjustment, that is, The pixel threshold of the image data is restored from 16-235 to 0-255.

As an implementation manner, the step of searching for a target pixel point whose pixel value satisfies a preset rule may include:

N threads are started, and the target pixel points whose pixel values satisfy the preset rule are respectively searched from N specified directions; the N is greater than 1; and the position of the coordinate value of the found target pixel point relative to the display area is recorded.

As described above, for the same video stream, the position of the data boundary in each frame of the video signal is generally the same relative to the display area, and therefore, it is possible to determine only the data boundary in the video signal of one frame or part of the frame in the video stream. The position of the display area, that is, the above-mentioned "coordinate value of the target pixel point with respect to the position of the display area", is recorded, and other frames refer to the recorded position.

Finding the target pixel in the acquired data can start multiple threads to find at the same time, which can improve the search efficiency. Generally, the display area and the image are both rectangular. Therefore, N can be 4, and 4 threads are started, and the center pixel of the to-be-processed video signal is used as a starting point, respectively, from top, bottom, left, and right. Direction, find the target pixel whose pixel value meets the preset rule.

After the target pixel is found, the coordinate value is recorded, and when the other frame video signals are processed, the data boundary can be directly determined according to the coordinate value. The preset rule here may be any one of the above, or may be other, and is not limited.

S105: Extract valid image data according to the image boundary, and display the valid image data.

S105 may be: adjusting the image data to be processed to match the display area according to the acquired position to obtain adjusted image data; and displaying the adjusted image data in the display area.

It can be understood that, according to the position of the boundary between the image data and the blanking data with respect to the display area, the image data is adjusted to match the display area, and the adjusted image data is displayed; the adjusted image data is compared with the display area. Matching, this improves the image display.

According to the above description, for the same video stream, after displaying the first several frames of image data of the video stream, it may be determined that the displayed image data does not match the display area, the matching result is recorded, and the displayed image data is determined Recording the position of the data boundary between the blanking data relative to the display area; then using the matching result and the position, adjusting subsequent frame image data in the video stream to make subsequent frame images in the video stream The data matches the display area.

For example, after determining that the displayed image data does not match the display area, only the target pixel point is searched once, and the coordinate value of the target pixel point is recorded; afterwards, the recorded coordinate value is conveniently used for the subsequent frame in the video stream. The image data is adjusted.

As an implementation manner, it may be determined whether the resolution of the adjusted image data is equal to the preset resolution; if yes, the adjusted image data is directly displayed in the display area; if not, the adjusted The resolution of the image data is adjusted to be equal to the preset resolution, and the effective image data after the adjustment is displayed in the display area.

Those skilled in the art can understand that the resolution of the image data may not be equal to the preset resolution due to the existence of the error. In this case, the resolution of the image data may be adjusted to be equal to the preset resolution. The image data after adjusting the resolution is displayed again. By applying this embodiment, the display effect is further improved.

As a specific implementation manner, the electronic device that implements the solution may be as shown in FIG. 2, and includes a video capture chip and an image processor. The image processor may be a DSP (Digital Signal Processing), an ARM (Acorn RISC Machine), an x86, etc., and is not limited. The device acquires image data and its corresponding blanking data from the video output device.

The specific process can be as shown in Figure 3:

S301: The video output device sends a video signal to the device.

S302: The video capture chip takes the received current frame video signal as a to-be-processed video signal, and the to-be-processed video signal includes to-be-processed image data and corresponding blanking data;

S303: The video capture chip or the image processor or other module of the device determines whether the image data to be processed matches the display area according to the matching result of the recorded historical image data and the display area; if yes, execute S304, if not, execute S305;

S304: discard blanking data, and display image data to be processed in a display area;

S305: The image processor determines a pixel threshold range of the data to be processed according to the pre-stored configuration information; and determines whether the pixel value of the blanking data is greater than a maximum value in a pixel threshold range of the image data to be processed; if not, executing S306; If yes, execute S311;

S306: The image processor configures the video capture chip, so that the video capture chip adjusts the pixel threshold range of the image data to be processed to 16-235;

S307: The image processor obtains, from the video capture chip, the image data to be processed after adjusting the pixel value and the blanking data of the unadjusted pixel value.

S308: the image processor searches for the pixel point with the pixel value greater than 235 in the acquired data as the target pixel point, and determines a boundary between the image data to be processed and the blanking data according to the coordinate value of the target pixel point;

S309: The image processor restores the pixel threshold range of the image data to be processed to 0-255;

S310: The image processor adjusts the image data to be matched with the display area according to the determined position of the boundary with respect to the display area, obtains image data after the position is adjusted, and displays the image data after the adjusted position in the display area;

S311: the image processor obtains the image data to be processed and the blanking data from the video capture chip, and searches for the pixel point whose pixel value is greater than 235 in the acquired data, as the target pixel point, and determines according to the coordinate value of the target pixel point. a boundary between the image data to be processed and the blanking data; adjusting the image data to be matched with the display area according to the determined position of the boundary with respect to the display area, obtaining image data after the position is adjusted, and displaying the image in the display area The image data after the position is adjusted.

Applying the embodiment shown in the present application, acquiring blanking data corresponding to the image data, when the image does not match the display area, determining the image boundary by using the blanking data, extracting the effective image data according to the image boundary, and displaying the effective Image data. The effective image data matches the display area, thus improving the display effect of the image.

Corresponding to the above method embodiment, the embodiment of the present application further provides an image display device.

FIG. 4 is a schematic structural diagram of an image display apparatus according to an embodiment of the present disclosure, including:

The obtaining module 401 is configured to be a first acquiring module, and the first acquiring module is configured to acquire a to-be-processed video signal, where the to-be-processed video signal includes a to-be-processed image, in order to distinguish it from the acquiring module in the following content. Data and its corresponding blanking data;

The determining module 402 is configured to determine whether the image data to be processed matches the display area; if not, trigger the second acquiring module;

a first display module 403, configured to display the image data to be processed in the display area;

a determining module 404, that is, a second obtaining module 404, configured to acquire a position of a data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data thereof;

The extraction module 405, that is, the adjustment module 405, is configured to adjust the image data to be processed to match the display area according to the acquired position, to obtain the adjusted image data;

The second display module 406 is configured to display the adjusted image data in the display area.

As an implementation manner, the determining module 402 may be specifically configured to:

Alternatively, determining a data boundary between the image data to be processed and its corresponding blanking data; determining whether the image data to be processed matches the display area according to the determined position of the data boundary relative to the display area.

As an implementation manner, the second obtaining module 404 may include: a first acquiring submodule, or a second acquiring submodule (not shown);

As an implementation manner, the second acquiring submodule may include:

As an implementation manner, the searching submodule may be specifically configured to:

As an implementation manner, the device may further include:

a recovery module (not shown), configured to: after the determining submodule determines a boundary between the image data to be processed and the blanking data, the adjusted pixel threshold range is from the preset threshold The range is restored to the pixel threshold range before adjustment.

As an implementation manner, the searching submodule includes:

And a saving unit configured to record a position of a coordinate value of the found target pixel relative to the display area.

As an implementation manner, the second display module 406 can be specifically configured to:

If yes, displaying the adjusted image data directly in the display area;

Applying the embodiment shown in FIG. 4, the blanking data corresponding to the image data is acquired. When the image does not match the display area, the image boundary is determined by using the blanking data, and the effective image data is extracted and displayed according to the image boundary. The valid image data. The effective image data matches the display area, thus improving the display effect of the image.

The embodiment of the present invention further provides an electronic device, as shown in FIG. 5, including a processor 501, a communication interface 502, a memory 503, and a communication bus 504, wherein the processor 501, the communication interface 502, and the memory 503 pass through the communication bus 504. Complete communication with each other,

a memory 503, configured to store a computer program;

The processor 501 is configured to implement any of the above image display methods when executing a program stored in the memory 503.

The communication bus mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the above electronic device and other devices.

The memory may include a random access memory (RAM), and may also include a non-volatile memory (NVM), such as at least one disk storage. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

The above processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; or may be a digital signal processing (DSP), dedicated integration. Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component.

The embodiment of the present application also provides an executable program code for being executed to execute any of the image display methods described above.

The embodiment of the present application further provides a computer readable storage medium for storing executable program code for being executed to execute any of the image display methods described above.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The various embodiments in the present specification are described in a related manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the image display device embodiment shown in FIG. 4, the electronic device embodiment shown in FIG. 5, the above-described executable program code embodiment, and the computer readable storage medium embodiment are basically similar to FIG. The image display method embodiment shown in FIG. 3 is relatively simple, and the relevant portions can be referred to the description of the embodiment of the image display method shown in FIGS.

The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., which are made within the spirit and principles of the present application, should be included in the present application. Within the scope of protection.

Claims

An image display method, comprising:

Obtaining a to-be-processed video signal, where the to-be-processed video signal includes image data to be processed and corresponding blanking data;

Determining whether the image data to be processed matches the display area;

If not, obtaining a position of the data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data;

Adjusting the image data to be processed to match the display area according to the acquired position, and obtaining the adjusted image data;

The adjusted image data is displayed in the display area.
The method according to claim 1, wherein the step of determining whether the image data to be processed matches the display area comprises:

Determining, according to the recorded matching result of the historical image data before the image data to be processed and the display area, whether the image data to be processed matches the display area;

Or determining, according to the position of the recorded historical data boundary relative to the display area, whether the image data to be processed matches the display area; wherein the historical data boundary is: a historical video before the video signal to be processed The boundary between the image data in the signal and its blanking data;

Or determining a data boundary between the image data to be processed and the corresponding blanking data; and determining, according to the determined position of the data boundary relative to the display area, whether the image data to be processed matches the display area.
The method according to claim 1, wherein the step of acquiring a position of the data boundary relative to the display area comprises:

Acquiring a position of the recorded historical data boundary relative to the display area as a position of the data boundary relative to the display area; wherein the historical data boundary is: in a historical video signal before the to-be-processed video signal The boundary between the image data and its blanking data;

Alternatively, determining a data boundary between the image data to be processed and its corresponding blanking data; obtaining a position of the determined data boundary with respect to the display area.
The method according to claim 3, wherein the step of determining a boundary between the image data to be processed and its corresponding blanking data comprises:

In the to-be-processed video signal, searching for a target pixel point whose pixel value satisfies a preset rule as the blanking data;

Determining a boundary between the image data to be processed and the blanking data according to the found target pixel.
The method according to claim 4, wherein the step of searching for a target pixel point whose pixel value satisfies a preset rule in the to-be-processed video signal comprises:

And adjusting a pixel threshold range of the image data to a preset threshold range, where a maximum value in the preset threshold range is smaller than a pixel value of the blanking data;

In the to-be-processed video signal, a pixel point whose pixel value is greater than a maximum value in the preset threshold range is searched for as a target pixel point.
The method according to claim 5, further comprising: after the step of determining a boundary between the image data to be processed and the corresponding blanking data according to the found target pixel point, further comprising:

The adjusted pixel threshold range is restored from the preset threshold range to the pixel threshold range before the adjustment.
The method according to claim 4, wherein in the to-be-processed video signal, the step of finding a pixel value that meets a preset rule of the pixel value comprises:

Starting from a central pixel point of the video signal, searching for a target pixel point whose pixel value satisfies a preset rule from four directions of up, down, left, and right, respectively;

Recording the position of the coordinate value of the found target pixel relative to the display area.
The method according to claim 1, wherein the displaying the adjusted image data in the display area comprises:

Determining whether the resolution of the adjusted image data is equal to a preset resolution;

If yes, displaying the adjusted image data directly in the display area;

If not, the resolution of the adjusted image data is adjusted to be equal to the preset resolution, and the image data after the resolution is adjusted is displayed in the display area.
An image display device, comprising:

a first acquiring module, configured to acquire a to-be-processed video signal, where the to-be-processed video signal includes to-be-processed image data and corresponding blanking data;

a determining module, configured to determine whether the image data to be processed matches the display area; if not, triggering the second acquiring module;

a second acquiring module, configured to acquire a position of the data boundary relative to the display area; wherein the data boundary is a boundary between the image data to be processed and the corresponding blanking data;

And an adjustment module, configured to adjust the image data to be processed to match the display area according to the acquired position, to obtain the adjusted image data;

And a second display module, configured to display the adjusted image data in the display area.
The device according to claim 9, wherein the determining module is specifically configured to:

Determining, according to the recorded matching result of the historical image data before the image data to be processed and the display area, whether the image data to be processed matches the display area;

Or determining, according to the position of the recorded historical data boundary relative to the display area, whether the image data to be processed matches the display area; wherein the historical data boundary is: a historical video before the video signal to be processed The boundary between the image data in the signal and its blanking data;

Or determining a data boundary between the image data to be processed and the corresponding blanking data; and determining, according to the determined position of the data boundary relative to the display area, whether the image data to be processed matches the display area.
The device according to claim 9, wherein the second obtaining module comprises: a first acquiring submodule, or a second acquiring submodule;

a first obtaining sub-module, configured to acquire a position of a recorded historical data boundary with respect to the display area as a position of the data boundary relative to the display area; wherein the historical data boundary is: the to-be-processed The boundary between the image data and its blanking data in the historical video signal before the video signal;

a second obtaining submodule, configured to determine a data boundary between the image data to be processed and its corresponding blanking data; and obtain a position of the determined data boundary relative to the display area.
The apparatus according to claim 11, wherein the second obtaining submodule comprises:

a search sub-module, configured to search, in the to-be-processed video signal, a target pixel point whose pixel value satisfies a preset rule, where the target pixel point is the blanking data;

And a determining submodule, configured to determine a boundary between the image data to be processed and the blanking data according to the found target pixel.
The device according to claim 12, wherein the searching submodule is specifically configured to:

Adjusting a pixel threshold range of the image data to a preset threshold range, where a maximum value in the preset threshold range is smaller than a pixel value of the blanking data; in the to-be-processed video signal, a search pixel value is greater than A pixel point of a maximum value in a preset threshold range is used as a target pixel point.
The device according to claim 13, wherein the device further comprises:

a recovery module, configured to restore the adjusted pixel threshold range from the preset threshold range to the pixel before the adjustment after determining, by the determining submodule, a boundary between the image data to be processed and the blanking data Threshold range.
The device according to claim 12, wherein the finding sub-module comprises:

a searching unit, configured to use a central pixel point of the video signal as a starting point, and search for a target pixel point whose pixel value satisfies a preset rule from four directions of upper, lower, left, and right, respectively;

And a saving unit, configured to record a position of the coordinate value of the found target pixel relative to the display area.
The device according to claim 9, wherein the second display module is specifically configured to:

Determining whether the resolution of the adjusted image data is equal to a preset resolution;

If yes, displaying the adjusted image data directly in the display area;

If not, the resolution of the adjusted image data is adjusted to be equal to the preset resolution, and the image data after the resolution is adjusted is displayed in the display area.
An electronic device, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;

a memory for storing a computer program;

The processor, when executed to execute a program stored on the memory, implements the method steps of any of claims 1-8.
A computer readable storage medium, wherein the computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the method steps of any of claims 1-8.
An executable program code, characterized in that the executable program code is operative to perform the method steps of any of claims 1-8.