CN103617792B - A kind of regulate display terminal picture to show method and display terminal - Google Patents
A kind of regulate display terminal picture to show method and display terminal Download PDFInfo
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Abstract
The invention discloses a kind of method regulating display terminal picture to show, comprise step: the first step, extract whole brightness of the vision signal of external device (ED) input; Second step, according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area; 3rd step, detects the brightness of each pixel inside each brightness section, then adds up the pixel number wherein had; 4th step, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, correspondence automatically performs predetermined luminance adjustment and operates.Disclosed by the invention a kind of regulate display terminal picture to show method and display terminal, it when display terminal shows different pictures, can regulate picture brightness automatically, makes display terminal picture have better display effect.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of regulate display terminal picture to show method and display terminal.
Background technology
Along with the development of human sciences's technology, the domestic electric appliances such as computing machine, televisor, video camera, camera are more and more universal in people's daily life, become people and to have lived indispensable ingredient.
At present, computer game has more and more been subject to popular welcome, and the quality requirements of user to game picture is more and more higher.Especially concerning the game player of specialty, robbing of needing to race against time is preponderated, and the game picture of present main flow has the existence of the darker picture of a lot of brightness, well can not see the enemy that landform or dark place clearly hide, mistakes in the least in, a thousand li of difference.So user focuses on the treatment effect of display to game picture more.
In order to improve the treatment effect of display to the darker picture of brightness, generally to reach the effect that brightness highlights compared with dark-part at present by amendment color gamma curve (RGB gamma), if the Master control chip inside of display uses the gamma table (gamma table) of 1:1, what display called is exactly the gamma table gamma table curve that display pannel (panel) has self, if the master chip inside of display does not use 1:1 gamma table gamma table, then the picture part of low gray-scale intensity is improved, draw high the gamma gamma curve of low GTG, realize the effect improved in the picture portion of low gray-scale intensity.
But, if the picture part entirety of low gray-scale intensity is drawn high, after such operation, the dark picture brightness of display can overallly improve, and can cause the overall graying white of display picture, picture detail is lost, picture effect is not good, and such as this black place is black not, and game loading picture generally all should be more black, but after entirety highlights, this picture is partially white.In addition, game popular is in the market varied, different game picture brightness and colour component variant, because the gamma table gamma table of prior art fixes, can not take into account all game, existing disposal route can only for partial game picture, therefore, make troubles to user's routine use display, badly influence the product use sense of user to display and be subject to.
Therefore, at present in the urgent need to developing a kind of technology, it can when the darker picture of display terminal display brightness, the brightness of automatic adjustment picture, the picture of display terminal is made to have preferably display effect, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthens the product use sense of user to display terminal and is subject to.
Summary of the invention
In view of this, the object of this invention is to provide a kind of regulate display terminal picture to show method and display terminal, it can when display terminal shows different pictures, the brightness of automatic adjustment picture, the picture of display terminal is made to have preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthens the product use sense of user to display terminal and is subject to, be of great practical significance.
For this reason, the invention provides a kind of method regulating display terminal picture to show, comprise the following steps:
The first step, extracts whole brightness of the vision signal of external device (ED) input;
Second step, according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
3rd step, detects the brightness of each pixel inside each brightness section, then adds up the pixel number wherein had;
4th step, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.
Wherein, described predetermined luminance adjustment operation is specially:
Improve the brightness being positioned at described low-light level interval pixel according to default fixed proportion, and keep or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
Wherein, in described predetermined luminance adjustment operation, the level and smooth set-up procedure of brightness is comprised:
When being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improve according to preset gray scale amplitude, and when reducing the brightness being positioned at pixel between described high luminance area according to default fixed proportion, progressively reduce according to preset gray scale amplitude.
Wherein, the vision signal of described external device (ED) input is YUV signal or rgb signal.
In addition, present invention also offers a kind of display terminal, comprising:
Brightness extraction unit, for extracting whole brightness of the vision signal of external device (ED) input, then sends to brightness section division unit by extraction result;
Brightness section division unit, is connected with brightness extraction unit, and for the brightness section brightness range that basis is preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
Brightness detection unit, is connected with brightness section division unit, for detecting the brightness of each pixel inside each brightness section, then adding up the pixel number wherein had, then testing result being sent to brightness regulation control module;
Brightness regulation control module, be connected with brightness detection unit, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.
Wherein, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, being that to be positioned at described low-light level interval for exceeding the pixel of half in whole pixels of having when all brightness section, improving the brightness being positioned at described low-light level interval pixel according to default fixed proportion;
High brightness adjusting module, be connected with brightness detection unit, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between high luminance area time, keep or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
Wherein, described low-light level adjusting module comprises the first brightness and smoothly adjusts submodule, for when being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improves according to preset gray scale amplitude;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reducing the brightness being positioned at pixel between described high luminance area according to default fixed proportion, progressively reduces according to preset gray scale amplitude.
Wherein, the vision signal of described external device (ED) input is YUV signal or rgb signal.
Wherein, described brightness extraction unit is graphic process unit GPU.
From above technical scheme provided by the invention, compared with prior art, the invention provides a kind of regulate display terminal picture to show method and display terminal, first it extract whole brightness of the vision signal of external device (ED) input, then according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area, then the brightness of each pixel inside each brightness section is detected, then the pixel number (i.e. distribution situation) wherein had is added up, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.Therefore, the present invention can when display terminal shows different pictures, the brightness of automatic adjustment picture, makes the picture of display terminal have preferably display effect, makes dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthen the product use sense of user to display terminal to be subject to, be of great practical significance.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of method regulating display terminal picture to show provided by the invention;
Fig. 2 is the structural representation of a kind of display terminal provided by the invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
See Fig. 1, a kind of method regulating display terminal picture to show provided by the invention, comprises the following steps:
Step S101: whole brightness of extracting the vision signal that external device (ED) (such as a computing machine) inputs; Step S102: according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
Step S103: the brightness detecting each pixel inside each brightness section, then adds up the pixel number (i.e. distribution situation) wherein had;
Step S104: when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.
In the present invention, described display terminal can comprise mobile phone, PDA(palm PC), any one such as mobile PC, panel computer, graphoscope has the device of menu display function.
In the present invention, it should be noted that, the vision signal of external device (ED) input can be the various vision signals of described display terminal support display, and the vision signal of described external device (ED) input can comprise YUV signal or rgb signal.
For the present invention, in step s 102, described default brightness section brightness range can set according to the needs of user, such as, when the whole brightness had when described vision signal (as YUV signal) have the brightness of 256 GTGs (0 ~ 255 GTG), can set 16 GTGs is default brightness section brightness range, then whole brightness that described vision signal has are divided, be divided into 16 brightness section.It should be noted that, these 256 gray scales are according to from black to white, from low-light level to high brightness sequential arrangement, for the present invention, the low-light level interval that can divide in advance is wherein: between 0 ~ 15 gray area, between 16 ~ 31 gray areas and between 32 ~ 47 gray areas, certainly can also according to the needs of user, divide between other gray area interval as low-light level in advance; Can divide in advance and between high luminance area be wherein: between 224 ~ 239 gray areas and between 240 ~ 255 gray areas, certainly according to the needs of user, can also divide in advance between other different gray areas as between high luminance area.It should be noted that, for the present invention, in step S104, described predetermined luminance adjustment operation is specially:
Improve the brightness being positioned at described low-light level interval pixel according to default fixed proportion, and keep or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
For the present invention, in described predetermined luminance adjustment operation, in order to process the smoothing smoothization of brightness regulation, bright dark gradual transition, there will not be the negative effect that picture highlights suddenly, can comprise the level and smooth set-up procedure of brightness:
When being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improve according to preset gray scale amplitude, and when reducing the brightness that be positioned at pixel between described high luminance area according to default fixed proportion, progressively reduce according to preset gray scale amplitude (such as each GTG amplitude or in every two GTG amplitudes).
Therefore, compared with prior art, for a kind of method regulating display terminal picture to show provided by the invention, first it extract whole brightness of the vision signal of external device (ED) input, then according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area, then the brightness of each pixel inside each brightness section is detected, then the pixel number (i.e. distribution situation) wherein had is added up, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.Therefore, the present invention can when display terminal shows different pictures, the brightness of automatic adjustment picture, makes the picture of display terminal have preferably display effect, makes dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthen the product use sense of user to display terminal to be subject to, be of great practical significance.
See Fig. 2, in specific implementation, based on a kind of method regulating display terminal picture to show that the invention described above provides, present invention also offers a kind of display terminal, comprising:
Brightness extraction unit 201, for extracting whole brightness of the vision signal that external device (ED) (such as a computing machine) inputs, then sends to brightness section division unit by extraction result;
Brightness section division unit 202, be connected with brightness extraction unit 201, for the brightness section brightness range that basis is preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
Brightness detection unit 203, be connected with brightness section division unit 202, for detecting the brightness of each pixel inside each brightness section, then adding up the pixel number (i.e. distribution situation) wherein had, then testing result being sent to brightness regulation control module;
Brightness regulation control module 204, be connected with brightness detection unit 203, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.
In the present invention, described display terminal can comprise mobile phone, PDA(palm PC), any one such as mobile PC, panel computer, graphoscope has the device of menu display function.
In the present invention, the vision signal of external device (ED) input can be the various vision signals of described display terminal support display, and the vision signal of described external device (ED) input can comprise YUV signal or rgb signal.
For the present invention, for picture interval division unit 202, described default brightness section brightness range can set according to the needs of user, such as, when the whole brightness had when described vision signal (as YUV signal) have the brightness of 256 GTGs, can set 16 GTGs is default brightness section brightness range, then picture interval division unit 202 divides whole brightness that described vision signal has, and is divided into 16 brightness section.It should be noted that, these 256 gray scales are according to from black to white, from low-light level to high brightness sequential arrangement, for the present invention, the low-light level interval that can divide in advance is wherein: between 0 ~ 15 gray area, between 16 ~ 31 gray areas and between 32 ~ 47 gray areas, certainly can also according to the needs of user, divide between other gray area interval as low-light level in advance; Can divide in advance and between high luminance area be wherein: between 224 ~ 239 gray areas and between 240 ~ 255 gray areas, certainly according to the needs of user, can also divide in advance between other different gray areas as between high luminance area.It should be noted that, for the present invention, for brightness regulation control module 204, described predetermined luminance adjustment operation is specifically as follows: improve the brightness being positioned at described low-light level interval pixel according to default fixed proportion, and keeps or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.Therefore, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, being that to be positioned at described low-light level interval for exceeding the pixel of half in whole pixels of having when all brightness section, improving the brightness being positioned at described low-light level interval pixel according to default fixed proportion;
High brightness adjusting module, be connected with brightness detection unit, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between high luminance area time, keep or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
For the present invention, in described predetermined luminance adjustment operation, in order to process the smoothing smoothization of brightness regulation, bright dark gradual transition, there will not be the negative effect that picture highlights suddenly, described low-light level adjusting module comprises the first brightness and smoothly adjusts submodule, for when being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improves according to preset gray scale amplitude;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reducing the brightness that be positioned at pixel between described high luminance area according to default fixed proportion, progressively reduce according to preset gray scale amplitude (such as each GTG amplitude or in every two GTG amplitudes).
In the present invention, described display terminal can comprise the device that any one such as display and all-in-one has menu display function.
In the present invention, in specific implementation, described input display unit 201 is preferably a graphic process unit GPU(i.e. display chip),
In the present invention, described picture interval division unit 202, picture brightness detecting unit 203 and brightness regulation control module 204 can for being arranged on central processor CPU, digital signal processor DSP or the single-chip microprocessor MCU on described display terminal mainboard.
Therefore, for a kind of display terminal provided by the invention, first it extract whole brightness of the vision signal of external device (ED) input, then according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area, then the brightness of each pixel inside each brightness section is detected, then the pixel number (i.e. distribution situation) wherein had is added up, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly.Therefore, the present invention can when display terminal shows different pictures, the brightness of automatic adjustment picture, makes the picture of display terminal have preferably display effect, makes dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthen the product use sense of user to display terminal to be subject to, be of great practical significance.
Therefore, in sum, compared with prior art, for provided by the invention a kind of regulate display terminal picture to show method and display terminal, it can when display terminal shows different pictures, the brightness of automatic adjustment picture, the picture of display terminal is made to have preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus the time of user's preciousness can be saved, raising user uses work efficiency during display terminal, strengthen the product use sense of user to display terminal to be subject to, be of great practical significance.
The display terminal that the application of the invention provides, the convenience that can people be lived is greatly improved, and drastically increases the living standard of people.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the method regulating display terminal picture to show, is characterized in that, comprises the following steps:
The first step, extracts whole brightness of the vision signal of external device (ED) input;
Second step, according to the brightness section brightness range preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
3rd step, detects the brightness of each pixel inside each brightness section, then adds up the pixel number wherein had;
4th step, when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly
Described predetermined luminance adjustment operation is specially: improve the brightness being positioned at described low-light level interval pixel according to default fixed proportion, and keeps or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
2. the method for claim 1, is characterized in that, in described predetermined luminance adjustment operation, comprises the level and smooth set-up procedure of brightness:
When being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improve according to preset gray scale amplitude, and when reducing the brightness being positioned at pixel between described high luminance area according to default fixed proportion, progressively reduce according to preset gray scale amplitude.
3. the method for claim 1, is characterized in that, the vision signal of described external device (ED) input is YUV signal or rgb signal.
4. a display terminal, is characterized in that, comprising:
Brightness extraction unit, for extracting whole brightness of the vision signal of external device (ED) input, then sends to brightness section division unit by extraction result;
Brightness section division unit, is connected with brightness extraction unit, and for the brightness section brightness range that basis is preset, the whole brightness described vision signal had are divided into multiple brightness section, and between the low-light level interval divided in advance wherein and high luminance area;
Brightness detection unit, is connected with brightness section division unit, for detecting the brightness of each pixel inside each brightness section, then adding up the pixel number wherein had, then testing result being sent to brightness regulation control module;
Brightness regulation control module, be connected with brightness detection unit, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between described low-light level interval or high luminance area time, know the overall brightness distribution situation of described vision signal, automatically perform predetermined luminance adjustment operation accordingly, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, being that to be positioned at described low-light level interval for exceeding the pixel of half in whole pixels of having when all brightness section, improving the brightness being positioned at described low-light level interval pixel according to default fixed proportion;
High brightness adjusting module, be connected with brightness detection unit, for when the pixel exceeding half in whole pixels that all brightness section have be positioned between high luminance area time, keep or reduce the brightness being positioned at pixel between described high luminance area according to default fixed proportion.
5. display terminal as claimed in claim 4, it is characterized in that, described low-light level adjusting module comprises the first brightness and smoothly adjusts submodule, for when being positioned at the brightness of described low-light level interval pixel according to default fixed proportion raising, progressively improves according to preset gray scale amplitude;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reducing the brightness being positioned at pixel between described high luminance area according to default fixed proportion, progressively reduces according to preset gray scale amplitude.
6. display terminal as claimed in claim 4, is characterized in that, the vision signal of described external device (ED) input is YUV signal or rgb signal.
7. display terminal as claimed in claim 4, it is characterized in that, described brightness extraction unit is graphic process unit GPU.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9858850B2 (en) | 2014-08-08 | 2018-01-02 | Benq Corporation | Image adjusting method and related display |
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| CN103617792A (en) | 2014-03-05 |
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