CN105654925A - high dynamic-range image processing method and system - Google Patents

high dynamic-range image processing method and system Download PDF

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Publication number
CN105654925A
CN105654925A CN201511028066.2A CN201511028066A CN105654925A CN 105654925 A CN105654925 A CN 105654925A CN 201511028066 A CN201511028066 A CN 201511028066A CN 105654925 A CN105654925 A CN 105654925A
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China
Prior art keywords
hdr image
brightness value
screen
pixel
information source
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CN201511028066.2A
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CN105654925B (en
Inventor
张华钧
付钇中
曾泽欢
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Shenzhen TCL New Technology Co Ltd
Shenzhen TCL Digital Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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Priority to CN201511028066.2A priority Critical patent/CN105654925B/en
Priority to PCT/CN2016/085263 priority patent/WO2017113620A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/37—Details of the operation on graphic patterns
    • G09G5/373—Details of the operation on graphic patterns for modifying the size of the graphic pattern
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/391—Resolution modifying circuits, e.g. variable screen formats

Abstract

The invention discloses a high dynamic-range image processing method, which comprises the following steps: obtaining a high dynamic-range (HDR) image of an information source and extracting a three-primary color value corresponding to each pixel point in the HDR image of the information source; updating the three-primary color value corresponding to each pixel point in the HDR image of the information source into the three-primary color value of each pixel point at the same position at a display terminal to obtain a screen HDR image; calculating a first brightness value corresponding to the screen HDR image on the basis of the resolution ratio of the display terminal and the three-primary color values of various pixel points in the screen HDR image; and displaying the screen HDR image in a preset main window body according to the first brightness value. The invention further discloses a high dynamic-range image processing system. The high dynamic-range image processing accuracy is improved.

Description

High dynamic range images treatment process and system
Technical field
The present invention relates to multimedia technology field, particularly relate to a kind of high dynamic range images treatment process and system.
Background technology
At present, HDR (the HighDynamicRange of intelligent display device display, high dynamic range encloses) image is all increase HDR functional effect by the method such as picture coding, as the transition on image 1-10000 ash rank is scaled to the transition on 0-255 ash rank by tradition HDR technology substantially. and by the image after HDR technical finesse, more dynamicrange and image detail can be provided, can better reflect the vision effect in true environment, but by contrast, people can be disturbed to differentiate the comparison effect of original HDR image display with screen HDR image, and existing processing mode is: the rgb value of HDR image is carried out weighted mean process, and in display area HDR image after display process, and processed by weighted mean and the image that shows is the image of virtualization, the display effect of image is poor, obviously, the process of HDR image is not accurate enough.
Summary of the invention
The main purpose of the present invention is to propose a kind of high dynamic range images treatment process and system, it is intended to solve traditional high dynamic range images processing mode, the technical problem not accurate enough to image procossing.
For achieving the above object, a kind of high dynamic range images treatment process provided by the invention, described high dynamic range images treatment process comprises the following steps:
Obtain information source high dynamic range and enclose HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding;
The tristimulus values that each corresponding for each pixel in described information source HDR image tristimulus values is updated to each pixel of the identical position of display terminal, to obtain screen HDR image;
Based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding; And
Default main window body shows described screen HDR image according to described first brightness value.
Preferably, described based on the tristimulus values of described display terminal resolving power and each pixel of described screen HDR image, the step calculating the first brightness value corresponding to described screen HDR image comprises:
Obtain the tristimulus values of each pixel of described screen HDR image;
By the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
Preferably, described acquisition information source HDR image, and after extracting the step of each tristimulus values that each pixel is corresponding in described information source HDR image, described high dynamic range images treatment process also comprises:
By the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
Default sub-window body shows described information source HDR image according to described 2nd brightness value.
Preferably, after the described step showing described information source HDR image in default sub-window body according to described 2nd brightness value, described high dynamic range images treatment process also comprises:
First brightness value described in comparison and described 2nd brightness value;
When described first brightness value is less than or equals described 2nd brightness value, export the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
Preferably, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
, for achieving the above object, in addition the present invention also proposes a kind of high dynamic range images treatment system, and described high dynamic range images treatment system comprises:
Processing module, for obtaining information source HDR image, and extracts each tristimulus values that in described information source HDR image, each pixel is corresponding;
More new module, for being updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image by each corresponding for each pixel in described information source HDR image tristimulus values;
First calculating module, for based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculating the first brightness value that described screen HDR image is corresponding;
First display module, for showing described screen HDR image according to described first brightness value in default main window body.
Preferably, described first calculating module comprises:
Acquiring unit, for obtaining the tristimulus values of each pixel of described screen HDR image;
Calculate unit, for by the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
Preferably, described high dynamic range images treatment system also comprises:
2nd calculating module, for by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
2nd display module, for showing described information source HDR image according to described 2nd brightness value in default sub-window body.
Preferably, described high dynamic range images treatment system also comprises:
Comparing module, for the first brightness value described in comparison and described 2nd brightness value;
Output module, for when described first brightness value is less than or equals described 2nd brightness value, exporting the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
Preferably, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
The high dynamic range images treatment process that the present invention proposes and system, first obtain information source HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding, then each corresponding for each pixel in described information source HDR image tristimulus values is updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image, again based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, finally in default main window body, show described screen HDR image according to described first brightness value, achieve the tristimulus values of each pixel in the resolving power according to display terminal and described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, and show described screen HDR image according to described first brightness value, instead of the first brightness value of described screen HDR image is calculated by Weighted Average Algorithm, in the present embodiment, described screen HDR image is calculated by the tristimulus values of the resolving power of display terminal and each pixel of screen, make the screen HDR image of final display more accurate.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of high dynamic range images treatment process first embodiment of the present invention;
Fig. 2 be the present invention based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the schematic flow sheet of the first better embodiment of brightness value corresponding to described screen HDR image;
Fig. 3 is the schematic flow sheet of high dynamic range images treatment process the 2nd embodiment of the present invention;
Fig. 4 is the schematic flow sheet of high dynamic range images treatment process the 3rd embodiment of the present invention;
Fig. 5 is the high-level schematic functional block diagram of high dynamic range images treatment system first embodiment of the present invention;
Fig. 6 is the refinement high-level schematic functional block diagram of the first calculating module in Fig. 5;
Fig. 7 is the high-level schematic functional block diagram of high dynamic range images treatment system the 2nd embodiment of the present invention;
Fig. 8 is the high-level schematic functional block diagram of high dynamic range images treatment system the 3rd embodiment of the present invention;
Fig. 9 is the present invention's main window body and the schematic diagram of sub-window body first displayed scene;
Figure 10 is the present invention's main window body and the schematic diagram of sub-window body the 2nd displayed scene.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
The present invention provides a kind of high dynamic range images treatment process.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are high dynamic range images treatment process first embodiment of the present invention.
The present embodiment proposes a kind of high dynamic range images treatment process, and described high dynamic range images treatment process comprises:
Step S10, obtains information source high dynamic range and encloses HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding;
In the present embodiment, the mode of described acquisition information source HDR image comprises: a, the figure image signal obtaining information source generation, carry out process by default frame buffer memory to described figure image signal and obtain information source HDR image, and obtain described information source HDR image; The information source HDR image prestored in b, acquisition terminal.
In this enforcement, after getting described information source HDR image, extracting each tristimulus values that in described information source HDR image, each pixel is corresponding, each tristimulus values is respectively red pixel value, green pixel values and blue pixel value.
It is understandable that, while obtaining described information source HDR image, the frame buffer memory that display terminal is preset reads the parameter of screen, described screen parameter comprises length and the width of screen, after the length reading screen and width, undertaken being multiplied by length and width and obtain the main window body (BaseDisplaywindow of terminal, also claim basis display window) size, then call present image source image quality (comprising white balance, contrast gradient, color etc.), the described information source HDR image obtained is saved in described frame buffer memory. In the present embodiment, described information source HDR refers to and adjusts without other extraneous factors, the HDR image that signal source can export.
Step S20, is updated to the tristimulus values of each pixel of the identical position of display terminal by each corresponding for each pixel in described information source HDR image tristimulus values, to obtain screen HDR image;
In the present embodiment, after getting each tristimulus values that in described information source HDR image, each pixel is corresponding, by default screen control register, the tristimulus values of each pixel of described information source HDR image is upgraded, wherein, described screen control register is the HDR Color control register (being equivalent to screen self HDR register) of screen end, described more new paragon is: the tristimulus values that each corresponding for each pixel in described information source HDR image tristimulus values is updated to each pixel of the identical position of display terminal, to obtain screen HDR image, namely each tristimulus values that each pixel in described information source HDR image is corresponding is upgraded by described screen control register, with the tristimulus values of the correspondence of each pixel of being updated in display terminal screen, finally, screen HDR image is obtained according to each tristimulus values after upgrading, now, using described screen HDR image as true HDR image. in the present embodiment, described screen HDR image refers to the HDR image that screen self HDR effect is formed.
Step S30, based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculates the first brightness value that described screen HDR image is corresponding;
Specifically, with reference to Fig. 2, described step S30 comprises:
Step S31, obtains the tristimulus values of each pixel of described screen HDR image;
Step S32, by the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
In the present embodiment, when obtaining the tristimulus values of each pixel of described screen HDR image, obtain the tristimulus values of each pixel of described screen HDR image, and obtain the resolving power that described display terminal is preset, it is understandable that, different display terminal resolving power is different, specifically arrange according to practical situation, then tristimulus values by each pixel of described screen HDR image is added, and by the total value after addition divided by described resolving power, to obtain the first brightness value corresponding to described screen HDR image, specifically calculation formula is as follows:
Wherein, �� R1, �� G1, �� B1Represent respectively:
The red register value summation of R1 in screen HDR image;
The green register value summation of G1 in screen HDR image;
The blue register value summation of B1 in screen HDR image.
It should be appreciated that the first brightness value of above-mentioned calculating gained is the average brightness value of screen HDR image pixel, avoid the situation of brightness disproportionation when picture shows.
Step S40, shows described screen HDR image according to described first brightness value in default main window body.
In the present embodiment, obtain the main window body preset, then in described main window body, show described screen HDR image according to described first brightness value, it should be noted that, the size of described main window body can with the consistent size of current display interface, it is also possible to adjust as required.
The high dynamic range images treatment process that the present embodiment proposes, first obtain information source HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding, then each corresponding for each pixel in described information source HDR image tristimulus values is updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image, again based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, finally in default main window body, show described screen HDR image according to described first brightness value, achieve the tristimulus values of each pixel in the resolving power according to display terminal and described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, and show described screen HDR image according to described first brightness value, instead of the first brightness value of described screen HDR image is calculated by Weighted Average Algorithm, in the present embodiment, described screen HDR image is calculated by the tristimulus values of the resolving power of display terminal and each pixel of screen, make the screen HDR image of final display more accurate.
Further, in order to improve the handiness of high dynamic range images process, the 2nd embodiment of high dynamic range images treatment process of the present invention is proposed based on the first embodiment, in the present embodiment, with reference to Fig. 3, after described step S10, described high dynamic range images treatment process also comprises:
Step S50, by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
In the present embodiment, getting described information source HDR image, and after getting the tristimulus values of each pixel of described information source HDR image, obtain the resolving power of described display terminal, then tristimulus values by each pixel of described information source HDR image is added, and by the total value after addition divided by described resolving power, to obtain the 2nd brightness value of described information source HDR image, specifically calculation formula is as follows:
Wherein, �� R2, �� G2, �� B2Represent respectively:
The red register value summation of R2 in information source HDR image;
The green register value summation of G2 in information source HDR image;
The blue register value summation of B2 in information source HDR image.
It should be appreciated that the 2nd brightness value of above-mentioned calculating gained is the average brightness value of information source HDR image pixel, avoid the situation of brightness disproportionation when picture shows.
Step S60, shows described information source HDR image according to described 2nd brightness value in default sub-window body.
In the present embodiment, before described step 60, comprise the step founding sub-window body (Subwindow), the mode of founding of described sub-window body is: in main window body display area, one or more sub-window body is set by remote-control equipment, or it is prefixed the display number of sub-window body in advance, it is possible to it is in the same area, show multiple sub-window body, it is also possible to be show a sub-window body respectively in each area.
After determining sub-window body, in the display buffer of the sub-window body in place, copy current information source HDR image, and show described information source HDR image according to described 2nd brightness value. Now, information source HDR image can be shown in described sub-window body, and in described main window body display screen HDR image.
In the present embodiment, owing to screen HDR image is the tristimulus values according to each pixel and resolving power calculating mean value, and determine the first brightness value according to described mean value, in order to improve the accuracy of follow-up HDR image comparison, described information source HDR image is adopted equally the tristimulus values of each pixel and the mode of resolving power calculating the 2nd brightness value, instead of calculating the 2nd brightness value by traditional Weighted Average Algorithm so that follow-up HDR image comparison result is more accurate.
In the present embodiment, step S50 is performed after described step S40, it is understandable that, can also after described step S10, while performing step S20-S40, perform step S60-S70 so that while calculating the first brightness value of screen HDR image, calculating the 2nd brightness value of described information source HDR image, namely the treating processes of the brightness value of two HDR image performs side by side.
Further, in order to improve the handiness of high dynamic range images process, the 3rd embodiment of high dynamic range images treatment process of the present invention is proposed based on the 2nd embodiment, in the present embodiment, with reference to Fig. 4, after described step S60, described high dynamic range images treatment process also comprises:
Step S70, the first brightness value described in comparison and described 2nd brightness value;
Step S80, when described first brightness value is less than or equals described 2nd brightness value, exports the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
In the present embodiment, after obtaining described first brightness value and described 2nd brightness value, described first brightness value and described 2nd brightness value are compared, to determine described first brightness value and the magnitude relationship of described 2nd brightness value, it is preferably: when described first brightness value is greater than described 2nd brightness value, i.e. described average1 (R1, G1, B1) > average2 (R2, G2, B2) time, the display effect giving tacit consent to described screen HDR image is good, namely the HDR effect of screen self is up to standard, on the contrary, when described first brightness value is less than or equals described 2nd brightness value, i.e. average1 (R1, G1, B1)��average2 (R2, G2, B2) time, the display effect giving tacit consent to described screen HDR image is poor, namely the HDR effect of screen self is not up to standard, now, exportable default information, to point out the display effect of the screen HDR image of terminal described in user not up to standard.
In the present embodiment, preferably when described first brightness value is greater than described 2nd brightness value, do not perform any operation, and when described first brightness value is less than or equals described 2nd brightness value, just export the information preset, to point out the display effect of the screen HDR image of terminal described in user not up to standard, no matter avoiding the operation which kind of situation of terminal all to be exported information, decrease the frequent operation of terminal process device, thus improve the efficiency of terminal process HDR image.
It is understandable that, in other embodiments, can also when described first brightness value be greater than described 2nd brightness value, export the first information, described in prompting user, the display effect of screen HDR image is up to standard, and when described first brightness value is less than or equals described 2nd brightness value, export the 2nd information, to point out the display effect of the screen HDR image of terminal described in user not up to standard, achieve according to the comparison result of described first brightness value and described 2nd brightness value, export corresponding information, to facilitate user to check the display effect of display terminal current screen, improve the intelligent of HDR image display.
Further, in order to improve the handiness of high dynamic range images process, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
In the present embodiment, described main window body and described sub-window body can carry out a point screen display according to default ratio and show, such as described main window body and described sub-window body carry out a point screen display according to identical ratio and show, can refer to Fig. 9, or the folded display of described main window body and described sub-window body weight, such as main window body is as background, and sub-window body shows as prospect, can with reference to Figure 10. Described main window body and all right display HDR image all over the screen of described sub-window body, namely HDR image is shown according to sequencing, can be elder generation's display screen HDR image in main window body, then when receiving the slip touch operation of user's input, be switched in sub-window body and show information source HDR image.
In the present embodiment, the screen HDR image in main window body and the information source HDR image in sub-window body is shown preferably by point screen display, for user's comparison two HDR image in same display interface, convenient checks that screen HDR image is different from information source HDR image, thus improves the comparison efficiency of HDR image.
The present invention further provides a kind of high dynamic range images treatment system.
With reference to the high-level schematic functional block diagram that Fig. 5, Fig. 5 are high dynamic range images treatment system first embodiment of the present invention.
It is emphasized that, to one skilled in the art, functional block diagram shown in Fig. 5 is only the exemplary plot of a better embodiment, and the technician of this area, around the function module of the high dynamic range images treatment system shown in Fig. 5, can carry out supplementing of new function module easily; The title of each function module is self-defined title, only for auxiliary each program functional block understanding this high dynamic range images treatment system, being not used in the technical scheme limiting the present invention, the core of technical solution of the present invention is, the function that the function module of each self-defined title to be reached.
The present embodiment proposes a kind of high dynamic range images treatment system, and described high dynamic range images treatment system comprises:
Processing module 10, for obtaining information source HDR image, and extracts each tristimulus values that in described information source HDR image, each pixel is corresponding;
In the present embodiment, the mode that described processing module 10 obtains information source HDR image comprises: a, the figure image signal obtaining information source generation, carry out process by default frame buffer memory to described figure image signal and obtain information source HDR image, and obtain described information source HDR image; The information source HDR image prestored in b, acquisition terminal.
In this enforcement, described processing module 10, after getting described information source HDR image, extracts each tristimulus values that in described information source HDR image, each pixel is corresponding, and each tristimulus values is respectively red pixel value, green pixel values and blue pixel value.
It is understandable that, while obtaining described information source HDR image, described processing module 10 reads the parameter of screen, described screen parameter comprises length and the width of screen, after the length reading screen and width, undertaken being multiplied by length and width and obtain the main window body (BaseDisplaywindow of terminal, also claim basis display window) size, then call present image source image quality (comprising white balance, contrast gradient, color etc.), the described information source HDR image obtained is saved in described frame buffer memory.In the present embodiment, described information source HDR refers to and adjusts without other extraneous factors, the HDR image that signal source can export.
More new module 20, for being updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image by each corresponding for each pixel in described information source HDR image tristimulus values;
In the present embodiment, after described processing module 10 gets each tristimulus values that in described information source HDR image, each pixel is corresponding, the tristimulus values of each pixel of described information source HDR image is upgraded by described more new module 20 by default screen control register, wherein, described screen control register is the HDR Color control register (being equivalent to screen self HDR register) of screen end, the more new paragon of described more new module 20 is: the tristimulus values that each corresponding for each pixel in described information source HDR image tristimulus values is updated to each pixel of the identical position of display terminal, to obtain screen HDR image, namely each tristimulus values that each pixel in described information source HDR image is corresponding is upgraded by described screen control register, with the tristimulus values of each pixel of being updated in display terminal screen, finally, screen HDR image is obtained according to each tristimulus values after upgrading, now, using described screen HDR image as true HDR image. in the present embodiment, described screen HDR image refers to the HDR image that screen self HDR effect is formed.
First calculating module 30, for based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculating the first brightness value that described screen HDR image is corresponding;
Specifically, with reference to Fig. 6, described first calculating module 30 comprises:
Acquiring unit 31, for obtaining the tristimulus values of each pixel of described screen HDR image;
Calculate unit 32, for by the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
In the present embodiment, when obtaining the tristimulus values of each pixel of described screen HDR image, described acquiring unit 31 obtains the tristimulus values of each pixel of described screen HDR image, and obtain the resolving power that described display terminal is preset, it is understandable that, different display terminal resolving power is different, specifically arrange according to practical situation, then the tristimulus values of each pixel of described screen HDR image is added by described calculating unit 32, and by the total value after addition divided by described resolving power, to obtain the first brightness value corresponding to described screen HDR image, specifically calculation formula is as follows:
Wherein, �� R1, �� G1, �� B1Represent respectively:
The red register value summation of R1 in screen HDR image;
The green register value summation of G1 in screen HDR image;
The blue register value summation of B1 in screen HDR image.
It should be appreciated that the first brightness value of above-mentioned calculating gained is the average brightness value of screen HDR image pixel, avoid the situation of brightness disproportionation when picture shows.
First display module 40, for showing described screen HDR image according to described first brightness value in default main window body.
In the present embodiment, obtain the main window body preset, then described first display module 40 shows described screen HDR image according to described first brightness value in described main window body, it should be noted that, the size of described main window body can with the consistent size of current display interface, it is also possible to adjust as required.
The high dynamic range images treatment system that the present embodiment proposes, first obtain information source HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding, then each corresponding for each pixel in described information source HDR image tristimulus values is updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image, again based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, finally in default main window body, show described screen HDR image according to described first brightness value, achieve the tristimulus values of each pixel in the resolving power according to display terminal and described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding, and show described screen HDR image according to described first brightness value, instead of the first brightness value of described screen HDR image is calculated by Weighted Average Algorithm, in the present embodiment, described screen HDR image is calculated by the tristimulus values of the resolving power of display terminal and each pixel of screen, make the screen HDR image of final display more accurate.
Further, in order to improve the handiness of high dynamic range images process, proposing the 2nd embodiment of high dynamic range images treatment system of the present invention based on the first embodiment, in the present embodiment, with reference to Fig. 7, described high dynamic range images treatment system also comprises:
2nd calculating module 50, for by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
In the present embodiment, described information source HDR image is got in described processing module 10, and after getting the tristimulus values of each pixel of described information source HDR image, first obtain the resolving power of described display terminal, then the tristimulus values of each pixel of described information source HDR image is added by the 2nd calculating module 50, and by the total value after addition divided by described resolving power, to obtain the 2nd brightness value of described information source HDR image, specifically calculation formula is as follows:
Wherein, �� R2, �� G2, �� B2Represent respectively:
The red register value summation of R2 in information source HDR image;
The green register value summation of G2 in information source HDR image;
The blue register value summation of B2 in information source HDR image.
It should be appreciated that the 2nd brightness value of above-mentioned calculating gained is the average brightness value of information source HDR image pixel, avoid the situation of brightness disproportionation when picture shows.
2nd display module 60, for showing described information source HDR image according to described 2nd brightness value in default sub-window body.
In the present embodiment, also comprise and found module, described module of founding is for founding sub-window body (Subwindow), the mode of founding of described sub-window body is: in main window body display area, one or more sub-window body is set by remote-control equipment, or it is prefixed the display number of sub-window body in advance, it is possible to it is in the same area, show multiple sub-window body, it is also possible to be show a sub-window body respectively in each area.
After determining sub-window body, in the display buffer of the sub-window body in place, copy current information source HDR image, and described 2nd display module 60 shows described information source HDR image according to described 2nd brightness value. Now, information source HDR image can be shown in described sub-window body, and in described main window body display screen HDR image.
In the present embodiment, owing to screen HDR image is the tristimulus values according to each pixel and resolving power calculating mean value, and determine the first brightness value according to described mean value, in order to improve the accuracy of follow-up HDR image comparison, described information source HDR image is adopted equally the tristimulus values of each pixel and the mode of resolving power calculating the 2nd brightness value, instead of calculating the 2nd brightness value by traditional Weighted Average Algorithm so that follow-up HDR image comparison result is more accurate.
In the present embodiment, after described first display module 40 shows described screen HDR image according to described first brightness value in default main window body, described 2nd calculating module 50 is just by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image, it is understandable that, information source HDR image can also be obtained in processing module 10, and after extracting each tristimulus values that in described information source HDR image, each pixel is corresponding, while described first display module 40 shows described screen HDR image according to described first brightness value in default main window body, described 2nd calculating module 50 is by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image, while making the first brightness value of calculating screen HDR image, calculate the 2nd brightness value of described information source HDR image, namely the treating processes of the brightness value of two HDR image performs side by side.
Further, in order to improve the handiness of high dynamic range images process, proposing the 3rd embodiment of high dynamic range images treatment system of the present invention based on the 2nd embodiment, in the present embodiment, with reference to Fig. 8, described high dynamic range images treatment system also comprises:
Comparing module 70, for the first brightness value described in comparison and described 2nd brightness value;
Output module 80, for when described first brightness value is less than or equals described 2nd brightness value, exporting the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
In the present embodiment, after obtaining described first brightness value and described 2nd brightness value, described first brightness value and described 2nd brightness value are compared by described comparing module 70, to determine described first brightness value and the magnitude relationship of described 2nd brightness value, it is preferably: when described first brightness value is greater than described 2nd brightness value, i.e. described average1 (R1, G1, B1) > average2 (R2, G2, B2) time, the display effect giving tacit consent to described screen HDR image is good, namely the HDR effect of screen self is up to standard, on the contrary, when described first brightness value is less than or equals described 2nd brightness value, i.e. average1 (R1, G1, B1)��average2 (R2, G2, B2) time, the display effect giving tacit consent to described screen HDR image is poor, namely the HDR effect of screen self is not up to standard, now, the exportable default information of described output module 80, to point out the display effect of the screen HDR image of terminal described in user not up to standard.
In the present embodiment, preferably when described first brightness value is greater than described 2nd brightness value, do not perform any operation, and when described first brightness value is less than or equals described 2nd brightness value, just export the information preset, to point out the display effect of the screen HDR image of terminal described in user not up to standard, no matter avoiding the operation which kind of situation of terminal all to be exported information, decrease the frequent operation of terminal process device, thus improve the efficiency of terminal process HDR image.
It is understandable that, in other embodiments, can also when described first brightness value be greater than described 2nd brightness value, export the first information, described in prompting user, the display effect of screen HDR image is up to standard, and when described first brightness value is less than or equals described 2nd brightness value, export the 2nd information, to point out the display effect of the screen HDR image of terminal described in user not up to standard, achieve according to the comparison result of described first brightness value and described 2nd brightness value, export corresponding information, to facilitate user to check the display effect of display terminal current screen, improve the intelligent of HDR image display.
Further, in order to improve the handiness of high dynamic range images process, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
In the present embodiment, described main window body and described sub-window body can carry out a point screen display according to default ratio and show, such as described main window body and described sub-window body carry out a point screen display according to identical ratio and show, can refer to Fig. 9, or the folded display of described main window body and described sub-window body weight, such as main window body is as background, and sub-window body shows as prospect, can with reference to Figure 10. Described main window body and all right display HDR image all over the screen of described sub-window body, namely HDR image is shown according to sequencing, can be elder generation's display screen HDR image in main window body, then when receiving the slip touch operation of user's input, be switched in sub-window body and show information source HDR image.
In the present embodiment, the screen HDR image in main window body and the information source HDR image in sub-window body is shown preferably by point screen display, for user's comparison two HDR image in same display interface, convenient checks that screen HDR image is different from information source HDR image, thus improves the comparison efficiency of HDR image.
It should be noted that, herein, term " comprises ", " comprising " or its other variant any are intended to contain comprising of nonexcludability, so that comprise the process of a series of key element, method, article or device not only comprise those key elements, but also comprise other key element clearly do not listed, or also comprise the key element intrinsic for this kind of process, method, article or device. When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the device comprising this key element and also there is other identical element.
Above-mentioned embodiment of the present invention sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, the technician of this area can be well understood to above-described embodiment method and can realize by the mode that software adds required general hardware platform, hardware can certainly be passed through, but in a lot of situation, the former is better enforcement mode. Based on such understanding, the technical scheme of the present invention in essence or says that part prior art contributed can embody with the form of software product, this computer software product is stored in a storage media (such as ROM/RAM, magnetic disc, CD), comprise some instructions with so that a station terminal equipment (can be mobile phone, computer, server, conditioner, or the network equipment etc.) perform the method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all it is included in the scope of patent protection of the present invention with reason.

Claims (10)

1. a high dynamic range images treatment process, it is characterised in that, described high dynamic range images treatment process comprises the following steps:
Obtain information source high dynamic range and enclose HDR image, and extract each tristimulus values that in described information source HDR image, each pixel is corresponding;
The tristimulus values that each corresponding for each pixel in described information source HDR image tristimulus values is updated to each pixel of the identical position of display terminal, to obtain screen HDR image;
Based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculate the first brightness value that described screen HDR image is corresponding; And
Default main window body shows described screen HDR image according to described first brightness value.
2. high dynamic range images treatment process as claimed in claim 1, it is characterized in that, described based on the tristimulus values of described display terminal resolving power and each pixel of described screen HDR image, the step calculating the first brightness value corresponding to described screen HDR image comprises:
Obtain the tristimulus values of each pixel of described screen HDR image;
By the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
3. high dynamic range images treatment process as claimed in claim 1, it is characterized in that, described acquisition information source HDR image, and after extracting the step of each tristimulus values that each pixel is corresponding in described information source HDR image, described high dynamic range images treatment process also comprises:
By the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
Default sub-window body shows described information source HDR image according to described 2nd brightness value.
4. high dynamic range images treatment process as claimed in claim 3, it is characterised in that, after the described step showing described information source HDR image in default sub-window body according to described 2nd brightness value, described high dynamic range images treatment process also comprises:
First brightness value described in comparison and described 2nd brightness value;
When described first brightness value is less than or equals described 2nd brightness value, export the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
5. high dynamic range images treatment process as described in claim 3 or 4, it is characterised in that, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
6. a high dynamic range images treatment system, it is characterised in that, described high dynamic range images treatment system comprises:
Processing module, for obtaining information source HDR image, and extracts each tristimulus values that in described information source HDR image, each pixel is corresponding;
More new module, for being updated to the tristimulus values of each pixel of the identical position of display terminal, to obtain screen HDR image by each corresponding for each pixel in described information source HDR image tristimulus values;
First calculating module, for based on the tristimulus values of the resolving power of described display terminal and each pixel of described screen HDR image, calculating the first brightness value that described screen HDR image is corresponding;
First display module, for showing described screen HDR image according to described first brightness value in default main window body.
7. high dynamic range images treatment system as claimed in claim 6, it is characterised in that, described first calculating module comprises:
Acquiring unit, for obtaining the tristimulus values of each pixel of described screen HDR image;
Calculate unit, for by the resolving power of the tristimulus values sum of each pixel of described screen HDR image divided by described display terminal, to obtain the first brightness value corresponding to described screen HDR image.
8. high dynamic range images treatment system as claimed in claim 6, it is characterised in that, described high dynamic range images treatment system also comprises:
2nd calculating module, for by the described resolving power of the tristimulus values sum of each pixel of described information source HDR image divided by described display terminal, to obtain the 2nd brightness value of described information source HDR image;
2nd display module, for showing described information source HDR image according to described 2nd brightness value in default sub-window body.
9. high dynamic range images treatment system as claimed in claim 8, it is characterised in that, described high dynamic range images treatment system also comprises:
Comparing module, for the first brightness value described in comparison and described 2nd brightness value;
Output module, for when described first brightness value is less than or equals described 2nd brightness value, exporting the information preset, to point out the display effect of the described screen HDR image of display terminal described in user not up to standard.
10. high dynamic range images treatment system as claimed in claim 8 or 9, it is characterised in that, described main window body and described sub-window body carry out a point screen display according to default ratio and show;
Or, described main window body and described sub-window body show according to sequencing.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106713907A (en) * 2017-02-21 2017-05-24 京东方科技集团股份有限公司 Display HDR image display performance evaluation method and device
CN109391848A (en) * 2017-08-03 2019-02-26 掌游天下（北京）信息技术股份有限公司 A kind of interactive advertisement system
CN111953899A (en) * 2020-08-04 2020-11-17 深圳市锐尔觅移动通信有限公司 Image generation method, image generation device, storage medium, and electronic apparatus
CN112825243A (en) * 2019-11-21 2021-05-21 西安诺瓦星云科技股份有限公司 Image display method and device, video processor and image display system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712691A (en) * 1995-12-05 1998-01-27 Philips Electronics North America Corporation Method and apparatus for area dependent dynamic blue de-focusing
CN101165538A (en) * 2006-10-16 2008-04-23 索尼株式会社 Imaging display apparatus and method
CN101578001A (en) * 2009-06-05 2009-11-11 彩虹集团公司 Method for adjusting direct LED backlight color and adjusting device thereof
CN101777311A (en) * 2010-03-05 2010-07-14 青岛海信电器股份有限公司 Dynamic backlight brightness control method
CN202871265U (en) * 2012-09-03 2013-04-10 南京安德普电子科技有限公司 Screen-brightness self-feedback adjusting correcting apparatus
CN103442189A (en) * 2013-07-23 2013-12-11 彩虹集团公司 Method for integrally and dynamically adjusting LED backlight

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101814272B (en) * 2009-02-20 2011-12-07 纬创资通股份有限公司 Display device and brightness adjusting method thereof
CN101707666A (en) * 2009-11-26 2010-05-12 北京中星微电子有限公司 Adjusting method and device with high dynamic range
CN101777310B (en) * 2010-03-05 2012-03-28 青岛海信电器股份有限公司 Dynamic backlight control method
TWI463464B (en) * 2010-12-17 2014-12-01 Chunghwa Picture Tubes Ltd Backlight adjustment device of a display and method thereof
TWI459354B (en) * 2011-11-11 2014-11-01 Chunghwa Picture Tubes Ltd Four-primary colors display and method for caculating relative brightness of the fourth primary color
CN103489430B (en) * 2013-09-25 2017-06-16 深圳Tcl新技术有限公司 Obtain the method and display of backlight illumination

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5712691A (en) * 1995-12-05 1998-01-27 Philips Electronics North America Corporation Method and apparatus for area dependent dynamic blue de-focusing
CN101165538A (en) * 2006-10-16 2008-04-23 索尼株式会社 Imaging display apparatus and method
CN101578001A (en) * 2009-06-05 2009-11-11 彩虹集团公司 Method for adjusting direct LED backlight color and adjusting device thereof
CN101777311A (en) * 2010-03-05 2010-07-14 青岛海信电器股份有限公司 Dynamic backlight brightness control method
CN202871265U (en) * 2012-09-03 2013-04-10 南京安德普电子科技有限公司 Screen-brightness self-feedback adjusting correcting apparatus
CN103442189A (en) * 2013-07-23 2013-12-11 彩虹集团公司 Method for integrally and dynamically adjusting LED backlight

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106713907A (en) * 2017-02-21 2017-05-24 京东方科技集团股份有限公司 Display HDR image display performance evaluation method and device
CN109391848A (en) * 2017-08-03 2019-02-26 掌游天下（北京）信息技术股份有限公司 A kind of interactive advertisement system
CN109391848B (en) * 2017-08-03 2021-03-09 掌游天下（北京）信息技术股份有限公司 Interactive advertisement system
CN112825243A (en) * 2019-11-21 2021-05-21 西安诺瓦星云科技股份有限公司 Image display method and device, video processor and image display system
CN111953899A (en) * 2020-08-04 2020-11-17 深圳市锐尔觅移动通信有限公司 Image generation method, image generation device, storage medium, and electronic apparatus

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