CN109873922B - Method and device for adjusting overscan parameters, display equipment and storage medium - Google Patents
Method and device for adjusting overscan parameters, display equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and a device for adjusting an overscan parameter, display equipment and a storage medium. The method comprises the following steps: receiving a video signal; searching a reference image signal corresponding to the video signal, and displaying the reference image signal in a target display; intercepting a target image signal in the video signal according to a set image cutting parameter, and displaying the target image signal in a target display; judging whether the target image signal is matched with the reference image signal; if yes, setting the image cropping parameters as overscan parameters for overscan processing; if not, adjusting the image cropping parameters, returning to execute the image cropping parameters to intercept the target image signals in the video signals according to the set image cropping parameters, and displaying the target image signals in the target display. The adjustment of the overscan parameter is completed by automatically adjusting the comparison between the input video signal and the reference image signal, and the efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to a video processing technology, in particular to a method and a device for adjusting an overscan parameter, a display device and a storage medium.
Background
In the past, a CRT (Cathode Ray Tube) display is often used in a television, and a video signal is often an analog signal.
When the CRT display displays a video signal, the level fluctuation causes the irregularity of the edge of the video signal, in order to avoid the distorted part of the video signal appearing at the edge of the screen, a service provider enlarges the video signal by 5% -10%, when the CRT display displays the video signal, the CRT display cuts the video signal to 90% -95%, ignores the distorted part, and displays the part with good middle linearity, and the function is called as overscan.
Although most of the current televisions are liquid crystal displays and do not have the defects, the current televisions still have an overscan since the video signals in various regions have differences and the phenomena such as edge leakage and interference may occur if the video signals are directly displayed.
At present, the over-scanning overscan parameters need to be manually adjusted by technicians before the television leaves a factory, the efficiency is low, and the technicians observe the parameters through naked eyes, so that the manual interference is easily caused, and the accuracy of the parameters is low.
Disclosure of Invention
The embodiment of the invention provides an adjusting method and device of an overscan parameter, a display device and a storage medium, and aims to solve the problems of low efficiency and low accuracy caused by manual adjustment of the overscan parameter.
In a first aspect, an embodiment of the present invention provides a method for adjusting an overscan parameter, including:
receiving a video signal;
searching a reference image signal corresponding to the video signal, and displaying the reference image signal in a target display;
intercepting a target image signal in the video signal according to a set image cutting parameter, and displaying the target image signal in a target display;
judging whether the target image signal is matched with the reference image signal;
if yes, setting the image cropping parameters as overscan parameters for overscan processing;
if not, adjusting the image cropping parameters, returning to execute the image cropping parameters to intercept the target image signals in the video signals according to the set image cropping parameters, and displaying the target image signals in the target display.
Preferably, the reference image signal is an image signal generated by capturing a screen capture image signal according to a cropping width and a cropping height corresponding to the video signal, and the screen capture image signal is an image signal generated by capturing a screen when the video signal is displayed in a reference display;
wherein the size of the target display is the same as the size of the reference display.
Preferably, the searching for the reference image signal corresponding to the video signal and displaying the reference image signal in the target display includes:
identifying signal parameters of the video signal;
searching a reference image signal generated based on the signal parameter in a designated memory;
and adapting the reference image signal to a target display for displaying.
Preferably, the designated memory is a removable memory;
the searching the reference image signal generated based on the signal parameter in the designated memory comprises:
reading a reference image signal in the mobile memory;
reading a signal parameter recorded at the time of generating the reference image signal from a name of the reference image signal;
if the signal parameter of the video signal is the same as that of the reference image signal, extracting the reference image signal;
wherein the signal parameters include a video format and a resolution.
Preferably, the cropping map parameters comprise cropping map width and height and cropping map starting points;
the intercepting a target image signal in the video signal according to the set clipping parameters and displaying the target image signal in the target display comprises the following steps:
reading the width and height of a cropping pattern corresponding to the video signal;
intercepting a target image signal meeting the clipping image width and height in the video signal based on the clipping image starting point;
and adapting the target image signal to the target display for displaying.
Preferably, the adjusting the chart cropping parameters includes:
adjusting the clip start point in the video signal.
Preferably, the determining whether the target image signal and the reference image signal match includes:
reading a target pixel point at a position designated in the target image signal;
reading a reference pixel point at a position designated in the reference image signal;
judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points;
if yes, determining that the target image signal is successfully matched with the reference image signal;
and if not, determining that the target image signal and the reference image signal fail to be matched.
In a second aspect, an embodiment of the present invention further provides an apparatus for adjusting an overscan parameter, including:
the video signal receiving module is used for receiving a video signal;
the reference image signal display module is used for searching a reference image signal corresponding to the video signal and displaying the reference image signal in a target display;
the target image signal display module is used for intercepting a target image signal from the video signal according to a set image cropping parameter and displaying the target image signal in the target display;
the image signal matching module is used for judging whether the target image signal is matched with the reference image signal; if yes, calling an overscan parameter setting module, and if not, calling an image cutting parameter adjusting module;
the overscan parameter setting module is used for setting the cropping picture parameter as an overscan parameter for overscan processing;
and the image cropping parameter adjusting module is used for adjusting the image cropping parameters and returning to call the target image signal display module.
Preferably, the reference image signal is an image signal generated by capturing a screen capture image signal according to a cropping width and a cropping height corresponding to the video signal, and the screen capture image signal is an image signal generated by capturing a screen when the video signal is displayed in a reference display;
wherein the size of the target display is the same as the size of the reference display.
Preferably, the reference image signal display module includes:
the signal parameter identification submodule is used for identifying signal parameters of the video signal;
a reference image signal searching sub-module for searching a reference image signal generated based on the signal parameter in a designated memory;
and the reference image signal adaptation display sub-module is used for adapting the reference image signal to a target display for displaying.
Preferably, the designated memory is a removable memory;
the reference image signal finding sub-module includes:
a reference image signal reading unit for reading a reference image signal in the mobile memory;
a signal parameter reading unit configured to read a signal parameter recorded at the time of generating the reference image signal from a name of the reference image signal;
a reference image signal extracting unit, configured to extract the reference image signal if a signal parameter of the video signal is the same as a signal parameter of the reference image signal;
wherein the signal parameters include a video format and a resolution.
Preferably, the cropping map parameters comprise cropping map width and height and cropping map starting points;
the target image signal display module includes:
the image cropping width and height reading submodule is used for reading the image cropping width and height corresponding to the video signal;
the target image signal intercepting submodule is used for intercepting a target image signal meeting the width and height of the clipping image in the video signal based on the clipping image starting point;
and the target image signal adaptation display sub-module is used for adapting the target image signal to the target display for displaying.
Preferably, the map cropping parameter adjusting module includes:
and the clipping starting point adjusting submodule is used for adjusting the clipping starting point in the video signal.
Preferably, the image signal matching module includes:
a target pixel reading submodule for reading a target pixel at a position specified in the target image signal;
a reference pixel reading submodule for reading a reference pixel at a position specified in the reference image signal;
the color value judgment submodule is used for judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points; if yes, calling a matching success determining sub-module, and if not, calling a matching failure determining sub-module;
a matching success determining submodule for determining that the target image signal and the reference image signal are successfully matched;
and the matching failure determining sub-module is used for determining that the target image signal and the reference image signal are matched in failure.
In a third aspect, an embodiment of the present invention further provides a display device, where the display device includes:
one or more processors;
a memory for storing one or more programs;
a target display for displaying a video signal and/or an image signal;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for adjusting the overscan parameter according to the embodiment of the first aspect of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for adjusting an overscan parameter provided in the embodiment of the first aspect of the present invention.
In the embodiment of the invention, if the video signal is received, the reference image signal corresponding to the video signal is searched and displayed in the target display, intercepting a target image signal in the video signal according to the set clipping parameters, displaying the target image signal in a target display, judging whether the target image signal is matched with a reference image signal or not, if so, setting the cropping parameters as overscan parameters for overscan processing, if not, adjusting the cropping parameters, re-intercepting the target image signal, the adjustment of the overscan parameter is completed by automatically adjusting the comparison between the input video signal and the reference image signal, the efficiency is improved, moreover, the contrast of the image signals can reach the fineness of the pixel points, and is more accurate than manual visual observation, so that the interference of human factors can be greatly reduced, and the accuracy of the overscan parameters is improved.
Drawings
FIG. 1 is a flow chart of an adjustment of an overscan parameter according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating an adjustment of an overscan parameter according to a second embodiment of the present invention;
FIG. 3 is an exemplary diagram of a screenshot parameter provided in the second embodiment of the present invention;
fig. 4 is an exemplary diagram of a reference pixel and a target pixel according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of an adjusting apparatus for over-scan parameters according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of adjusting overscan parameters according to an embodiment of the present invention, where the embodiment is applicable to adjusting overscan parameters before a display device such as a liquid crystal television leaves a factory, and the method may be executed by the display device, and specifically includes the following steps:
and S110, receiving the video signal.
In a specific implementation, the embodiment of the present invention may be applied to a Display device, for example, an LCD (Liquid Crystal Display) television, an LED (Light Emitting Diode) television, a 3D television, a plasma television, and the like, which is not limited in this respect.
The display device may be implemented in software and/or hardware, and has at least one display, which in this embodiment is referred to as a target display.
Before the display device leaves the factory, a technician can sequentially transmit different video signals to the display device and sequentially adjust the overscan parameters of the display device according to the different video signals.
S120, searching a reference image signal corresponding to the video signal, and displaying the reference image signal in a target display.
By applying the embodiment of the invention, corresponding reference image signals can be set for different video signals, and the reference image signals conform to the overscan target.
The technical personnel input the video signal to the display equipment and send the overscan adjustment signal to the display equipment, and the display equipment searches the reference image signal corresponding to the current video signal according to the adjustment signal and displays the reference image signal in the target display.
In one embodiment, the display device is configured with corresponding factory and home remote controls, the factory remote control being generally within the confines of the factory for use by a technician in commissioning the display device, and the home remote control serving to control the display device, typically after shipment from the factory, for use by a user.
In this embodiment, the technician may press a designated key in the factory remote control to send an overscan adjustment signal to the display device.
The designated key may be a single key, or may be a combination of two or more keys, which is not limited in this embodiment of the present invention.
S130, intercepting a target image signal in the video signal according to the set clipping parameters, and displaying the target image signal in the target display.
In the embodiment of the invention, different cropping map parameters can be set in sequence, the video signal is cropped according to the cropping map parameters, the target image signal is intercepted from the cropping map parameters, and the target image signal is displayed in the target display.
S140, judging whether the target image signal is matched with the reference image signal; if yes, go to S150, otherwise go to S160.
S150, setting the cropping map parameter as an overscan parameter for overscan processing.
And S160, adjusting the graph cutting parameters, and returning to the step of executing S130.
In the embodiment of the present invention, the target image signal and the reference image signal are displayed simultaneously, and the reference image signal can be used as a reference for overscan to compare the target image signal with the reference image signal in the displayed area.
If the two match, that is, the cropping at this time matches the overscan target, the cropping map parameter may be set as the overscan parameter for overscan processing other video signals of the same type as the video signal.
If the two are not matched, that is, the cropping does not conform to the overscan target, the cropping parameters can be readjusted to intercept a new target image signal from the video signal and match the new target image signal with the reference image signal until the target image signal and the reference image signal are successfully matched.
In the embodiment of the invention, if the video signal is received, the reference image signal corresponding to the video signal is searched and displayed in the target display, intercepting a target image signal in the video signal according to the set clipping parameters, displaying the target image signal in a target display, judging whether the target image signal is matched with a reference image signal or not, if so, setting the cropping parameters as overscan parameters for overscan processing, if not, adjusting the cropping parameters, re-intercepting the target image signal, the adjustment of the overscan parameter is completed by automatically adjusting the comparison between the input video signal and the reference image signal, the efficiency is improved, moreover, the contrast of the image signals can reach the fineness of the pixel points, and is more accurate than manual visual observation, so that the interference of human factors can be greatly reduced, and the accuracy of the overscan parameters is improved.
Example two
Fig. 2 is a flowchart of adjusting an overscan parameter according to a second embodiment of the present invention, where the present embodiment further adds processing operations on a reference image signal and a target image signal based on the foregoing embodiments, and the method may be executed by a display device, and specifically includes the following steps:
s201, receiving a video signal.
For a received video signal, a video layer may be generated and the video signal may be displayed into the video layer.
S202, identifying signal parameters of the video signal.
Therefore, in the embodiment of the present invention, the signal parameters of the video signal can be used as different dimensions to distinguish the video signals with different signal parameters and set the corresponding reference image signals.
In one example, the signal parameters include video format and resolution.
Wherein, the display device integrates a plurality of input channels, can support a plurality of video formats, and for an analog system, can support video formats such as PAL (Phase alternation Line, Pair), NTSC (National Television Standards Committee, Standard Television broadcast transmission and reception protocol), SECAM (Sequentil Couleur A Memoire, Seconk), for Digital Systems, Video formats such as DVB (Digital Video Broadcasting), ATSC (Advanced Television Systems Committee), ISDB (integrated services Digital Broadcasting), DMB (Digital Multimedia Broadcasting) and the like can be supported, for other systems, Video formats such as AV (Audio Video), YPBPR (color difference component Interface), S-Video (Separate Video, S terminal output), HDMI (High Definition Multimedia Interface), USB (Universal Serial Bus), and the like may be supported.
Of course, the signal parameters are only examples, and when implementing the embodiment of the present invention, other signal parameters may be set according to actual situations, for example, device information (such as device type) for transmitting the video signal, an aspect ratio, and the like, which is not limited in this respect. In addition, besides the above signal parameters, those skilled in the art may also use other signal parameters according to actual needs, and the embodiment of the present invention is not limited thereto.
S203, searching the reference image signal generated based on the signal parameter in the designated memory.
By applying the embodiment of the invention, corresponding reference image signals can be generated in advance according to different signal parameters, stored in a designated memory and distributed to other display equipment to adjust the overscan parameters.
In one embodiment, the screen capture generates an image signal when a video signal of a certain signal parameter is displayed in a reference display.
Before the video signal is shipped, the video signal is generally provided with a corresponding cropping width and height as a cropping standard, the image signal is cropped according to the cropping width and height corresponding to the video signal, and the image signal intercepted from the cropping width and height is set as a reference image signal generated based on the signal parameter.
In this embodiment, the reference image signal is an image signal generated by clipping from the screen capture image signal according to the cropping width and height corresponding to the video signal, and the screen capture image signal is an image signal generated by clipping when the video signal is displayed on the reference display.
Wherein the size of the target display is the same as the size of the reference display.
In order to match the reference image signal with the target image signal, the video signal for generating the reference image signal and the video signal for generating the target image signal are the same frame video signal.
In a specific implementation, the memory has various types, for example, a memory local to the display device, a removable memory, a server, and the like, and meanwhile, the signal parameter storage manner also has various manners, for example, writing a file name, generating an index file, writing a folder name, and the like, so that for different memories and different signal parameter storage manners, a corresponding access manner can be selected to search the reference image signal generated based on the signal parameter in the memory.
In one example, the designated memory is a removable memory, such as a usb disk, and the signal parameter is stored by writing the signal parameter into a file name, for example, a reference image signal generated for a video signal with a resolution of 480i in HDMI format, which may be named HDMI _480i.
Then in this example, the reference image signal may be read in a specified area (e.g., root directory, directory specifying name, etc.) in the mobile memory.
The signal parameters recorded at the time of generating the reference image signal are read from the name of the reference image signal, and the signal parameters of the video signal are compared with the signal parameters of the reference image signal.
And if the signal parameters of the video signal are the same as those of the reference image signal, extracting the reference image signal.
If the signal parameters of the video signal are different from the signal parameters of all the reference image signals, the current video signal can be prompted not to support the automatic adjustment of the overscan parameters.
And S204, adapting the reference image signal to a target display for displaying.
For the reference image signal, a graphics layer may be generated in which full-screen display is performed, with the reference image signal resized to fit the target display and set to a specified transparency (e.g., 50%).
And S205, reading the width and the height of the cropping pattern corresponding to the video signal.
In the embodiment of the invention, the cropping map parameters comprise cropping map width and height and cropping map starting points.
The width and height of the cropping pattern are generally set by a manufacturer generating the video signal, and are mostly 90% -95% of the width and height of the video signal.
As shown in fig. 3, the cropping pattern starting point 31 and the cropping pattern width 32 may form a cropping pattern area (a hatched portion), and the four corner points 301 of the video layer 30 are sequentially moved in a certain order (e.g., from left to right, from top to bottom, etc.), so as to adjust the position of the cropping pattern starting point 31 in the video signal, and thus adjust the position of the cropping pattern area in the video signal for capturing the target image signal.
S206, intercepting a target image signal meeting the clipping diagram width and height in the video signal based on the clipping diagram starting point.
And S207, adapting the target image signal to the target display for displaying.
And intercepting a target image signal meeting the width and height of the cropping pattern from the video signal every time the cropping pattern starting point is adjusted, so as to intercept the target image signal meeting the cropping pattern area.
And adjusting the size of the intercepted target image signal to be matched with a target display so as to display the target image signal in a full screen mode.
S208, judging whether the target image signal is matched with the reference image signal; if so, S209 is executed, otherwise, S210 is executed.
In a specific implementation, if the target image signal and the reference image signal are generated based on the same video signal, the content of the target image signal and the content of the reference image signal are partially the same.
In one aspect, a target pixel point is read at a specified location in a target image signal.
On the other hand, the reference pixel point is read at a position specified in the reference image signal.
The positions of the target pixel points and the reference pixel points are the same, and the number of the target pixel points and the reference pixel points is equal.
It should be noted that, in order to reduce the chance that the color value of the target pixel is the same as that of the reference pixel, the target pixels and the reference pixels at multiple positions may be selected.
For example, as shown in fig. 4, in the reference image signal 41, a pixel 411 located at the upper left, middle left, lower left, upper right, middle right, and lower right can be read as a reference pixel, and correspondingly, in the target image signal 42, a pixel 421 located at the upper left, middle left, lower left, upper right, middle right, and lower right can be read as a target pixel.
And judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points.
If yes (namely all the positions are the same), the target image signal and the reference image signal are successfully matched.
If not (i.e., at least one location is different), it is determined that the target image signal and the reference image signal fail to match.
S209, setting the cropping map parameter as an overscan parameter for overscan processing.
S210, adjusting the cropping pattern starting point in the video signal, and returning to execute S206.
If the target image signal does not match the reference image signal, the position of the video signal (i.e., the video layer) can be shifted again, so that the position of the cropping pattern start point in the video signal is adjusted, the cropping pattern area is adjusted again, and the target video signal is re-cut.
The display equipment sets and finishes overscan parameters aiming at video parameters of different signal parameters, stores the overscan parameters in a local memory, and searches for the overscan parameters corresponding to the signal parameters of the video signals and overscans the video signals according to the overscan parameters when the display equipment receives the video signals after leaving a factory.
EXAMPLE III
Fig. 5 is a schematic structural diagram of an adjusting apparatus for overscan parameters according to a third embodiment of the present invention, which specifically includes the following modules:
a video signal receiving module 510 for receiving a video signal;
a reference image signal display module 520, configured to search for a reference image signal corresponding to the video signal, and display the reference image signal in a target display;
a target image signal display module 530, configured to intercept a target image signal from the video signal according to a set clipping parameter, and display the target image signal on the target display;
an image signal matching module 540, configured to determine whether the target image signal matches the reference image signal; if yes, the overscan parameter setting module 550 is called, and if no, the graph cutting parameter adjusting module 560 is called;
an overscan parameter setting module 550, configured to set the cropping map parameter as an overscan parameter for performing overscan processing;
and the image cropping parameter adjusting module 560 is used for adjusting the image cropping parameters and returning to call the target image signal display module 530.
In a specific implementation, the reference image signal is an image signal generated by intercepting a screen capture image signal according to a cropping width and a cropping height corresponding to the video signal, and the screen capture image signal is an image signal generated by intercepting a screen when the video signal is displayed in a reference display;
wherein the size of the target display is the same as the size of the reference display.
In one embodiment of the present invention, the reference image signal display module 520 includes:
the signal parameter identification submodule is used for identifying signal parameters of the video signal;
a reference image signal searching sub-module for searching a reference image signal generated based on the signal parameter in a designated memory;
and the reference image signal adaptation display sub-module is used for adapting the reference image signal to a target display for displaying.
In one example of embodiment of the present invention, the designated memory is a removable memory;
the reference image signal finding sub-module includes:
a reference image signal reading unit for reading a reference image signal in the mobile memory;
a signal parameter reading unit configured to read a signal parameter recorded at the time of generating the reference image signal from a name of the reference image signal;
a reference image signal extracting unit, configured to extract the reference image signal if a signal parameter of the video signal is the same as a signal parameter of the reference image signal;
wherein the signal parameters include a video format and a resolution.
In one embodiment of the invention, the graph cropping parameters comprise a graph cropping width and a graph cropping height, and a graph cropping starting point;
the target image signal display module 530 includes:
the image cropping width and height reading submodule is used for reading the image cropping width and height corresponding to the video signal;
the target image signal intercepting submodule is used for intercepting a target image signal meeting the width and height of the clipping image in the video signal based on the clipping image starting point;
and the target image signal adaptation display sub-module is used for adapting the target image signal to the target display for displaying.
In an embodiment of the present invention, the graph trimming parameter adjusting module 560 includes:
and the clipping starting point adjusting submodule is used for adjusting the clipping starting point in the video signal.
In one embodiment of the present invention, the image signal matching module 540 includes:
a target pixel reading submodule for reading a target pixel at a position specified in the target image signal;
a reference pixel reading submodule for reading a reference pixel at a position specified in the reference image signal;
the color value judgment submodule is used for judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points; if yes, calling a matching success determining sub-module, and if not, calling a matching failure determining sub-module;
a matching success determining submodule for determining that the target image signal and the reference image signal are successfully matched;
and the matching failure determining sub-module is used for determining that the target image signal and the reference image signal are matched in failure.
The device for adjusting the overscan parameter provided by the embodiment of the invention can execute the method for adjusting the overscan parameter provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 6 is a schematic structural diagram of a display apparatus according to a fourth embodiment of the present invention, as shown in fig. 6, the display apparatus includes a processor 60, a memory 61, an input device 62, and an output device 63; the number of the processors 60 in the display device may be one or more, and one processor 60 is taken as an example in fig. 6; the processor 60, the memory 61, the input device 62 and the output device 63 in the display apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 6.
The memory 61 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for adjusting the overscan parameter in the embodiment of the present invention (for example, the video signal receiving module 510, the reference image signal display module 520, the target image signal display module 530, the image signal matching module 540, the overscan parameter setting module 550, and the cropping parameter adjusting module 560). The processor 60 executes various functional applications and data processing of the display device by executing software programs, instructions and modules stored in the memory 61, that is, the above-mentioned adjustment method of the overscan parameter is realized.
The memory 61 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 61 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 61 may further include memory remotely located from the processor 60, which may be connected to the display device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 62 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the display apparatus.
The output device 63 may include a target display 631 such as a liquid crystal display, an audio device such as a speaker, and the target display 631 may include a capacitive screen, an electromagnetic screen, or an infrared screen, and may display a video signal and/or an image signal.
EXAMPLE five
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for adjusting an overscan parameter, the method including:
receiving a video signal;
searching a reference image signal corresponding to the video signal, and displaying the reference image signal in a target display;
intercepting a target image signal in the video signal according to a set image cutting parameter, and displaying the target image signal in a target display;
judging whether the target image signal is matched with the reference image signal;
if yes, setting the image cropping parameters as overscan parameters for overscan processing;
if not, adjusting the image cropping parameters, returning to execute the image cropping parameters to intercept the target image signals in the video signals according to the set image cropping parameters, and displaying the target image signals in the target display.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for adjusting the overscan parameter provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the device for adjusting an overscan parameter, each included unit and each included module are only divided according to functional logic, but are not limited to the above division, as long as the corresponding function can be achieved; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for adjusting an overscan parameter, comprising:
receiving a video signal;
searching a reference image signal corresponding to the video signal, displaying the reference image signal in a target display, and setting the reference image signal to be a preset transparency;
intercepting a target image signal in the video signal according to set image cropping parameters, and displaying the target image signal in the target display, wherein the image cropping parameters comprise an image cropping width and a cropping height and an image cropping starting point;
judging whether the target image signal is matched with the reference image signal;
if yes, setting the image cropping parameters as overscan parameters for overscan processing;
if not, adjusting the image cropping parameters, returning to execute the image cropping parameters to intercept the target image signals in the video signals according to the set image cropping parameters, and displaying the target image signals in the target display;
wherein the determining whether the target image signal matches the reference image signal comprises:
reading a target pixel point at a position designated in the target image signal;
reading a reference pixel point at a position designated in the reference image signal;
judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points;
if yes, determining that the target image signal is successfully matched with the reference image signal;
if not, determining that the matching of the target image signal and the reference image signal fails;
if the matching of the target image signal and the reference image signal fails, the position of the video signal is moved again, so that the position of the cropping pattern starting point in the video signal is adjusted, and the target image signal is intercepted again.
2. The method according to claim 1, wherein said searching for the reference image signal corresponding to the video signal and displaying the reference image signal in the target display comprises:
identifying signal parameters of the video signal;
searching a reference image signal generated based on the signal parameter in a designated memory;
and adapting the reference image signal to a target display for displaying.
3. The method of claim 2, wherein the designated memory is a removable memory;
the searching the reference image signal generated based on the signal parameter in the designated memory comprises:
reading a reference image signal in the mobile memory;
reading a signal parameter recorded at the time of generating the reference image signal from a name of the reference image signal;
if the signal parameter of the video signal is the same as that of the reference image signal, extracting the reference image signal;
wherein the signal parameters include a video format and a resolution.
4. The method according to claim 1 or 3, wherein the intercepting a target image signal in the video signal according to the set clipping parameter and displaying the target image signal in the target display comprises:
reading the width and height of a cropping pattern corresponding to the video signal;
intercepting a target image signal meeting the clipping image width and height in the video signal based on the clipping image starting point;
and adapting the target image signal to the target display for displaying.
5. The method of claim 4, wherein the adjusting the cropping map parameter comprises:
adjusting the clip start point in the video signal.
6. An apparatus for adjusting overscan parameters, comprising:
the video signal receiving module is used for receiving a video signal;
the reference image signal display module is used for searching a reference image signal corresponding to the video signal, displaying the reference image signal in a target display and setting the reference image signal to be a preset transparency;
the target image signal display module is used for intercepting a target image signal from the video signal according to set image cropping parameters and displaying the target image signal in the target display, wherein the image cropping parameters comprise an image cropping width and a cropping height and an image cropping starting point;
the image signal matching module is used for judging whether the target image signal is matched with the reference image signal; if yes, calling an overscan parameter setting module, and if not, calling an image cutting parameter adjusting module;
the overscan parameter setting module is used for setting the cropping picture parameter as an overscan parameter for overscan processing;
the image cropping parameter adjusting module is used for adjusting the image cropping parameters and returning to call the target image signal display module;
wherein the image signal matching module includes:
a target pixel reading submodule for reading a target pixel at a position specified in the target image signal;
a reference pixel reading submodule for reading a reference pixel at a position specified in the reference image signal;
the color value judgment submodule is used for judging whether the color values of the target pixel points with the same positions are the same as the color values of the reference pixel points; if yes, calling a matching success determining sub-module, and if not, calling a matching failure determining sub-module;
a matching success determining submodule for determining that the target image signal and the reference image signal are successfully matched;
a matching failure determination sub-module for determining that the matching of the target image signal and the reference image signal fails;
if the matching of the target image signal and the reference image signal fails, the position of the video signal is moved again, so that the position of the cropping pattern starting point in the video signal is adjusted, and the target image signal is intercepted again.
7. The apparatus of claim 6, wherein the reference image signal display module comprises:
the signal parameter identification submodule is used for identifying signal parameters of the video signal;
a reference image signal searching sub-module for searching a reference image signal generated based on the signal parameter in a designated memory;
and the reference image signal adaptation display sub-module is used for adapting the reference image signal to a target display for displaying.
8. The apparatus of claim 6, wherein the target image signal display module comprises:
the image cropping width and height reading submodule is used for reading the image cropping width and height corresponding to the video signal;
the target image signal intercepting submodule is used for intercepting a target image signal meeting the width and height of the clipping image in the video signal based on the clipping image starting point;
and the target image signal adaptation display sub-module is used for adapting the target image signal to the target display for displaying.
9. A display device, characterized in that the display device comprises:
one or more processors;
a memory for storing one or more programs;
a target display for displaying a video signal and/or an image signal;
when executed by the one or more processors, cause the one or more processors to implement the method of adjusting overscan parameters of any of claims 1-5.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method for adjusting an overscan parameter as claimed in any one of claims 1 to 5.
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| CN201910127864.2A CN109873922B (en) | 2019-02-20 | 2019-02-20 | Method and device for adjusting overscan parameters, display equipment and storage medium |
| PCT/CN2019/127717 WO2020168816A1 (en) | 2019-02-20 | 2019-12-24 | Overscanning parameter adjusting method and apparatus, display device, and storage medium |
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| CN201910127864.2A CN109873922B (en) | 2019-02-20 | 2019-02-20 | Method and device for adjusting overscan parameters, display equipment and storage medium |
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| CN109873922B (en) * | 2019-02-20 | 2021-01-19 | 广州视源电子科技股份有限公司 | Method and device for adjusting overscan parameters, display equipment and storage medium |
| EP3866476A1 (en) * | 2020-02-13 | 2021-08-18 | Top Victory Investments Limited | Method and system for automatically adjusting display parameters of a display screen of a television device |
| CN115914767A (en) * | 2022-11-11 | 2023-04-04 | 深圳创维－Rgb电子有限公司 | Reproduction rate adjusting method, system, television and computer readable storage medium |
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| WO2020168816A1 (en) | 2020-08-27 |
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