CN103617792A - Method for adjusting image display of display terminal and display terminal - Google Patents
Method for adjusting image display of display terminal and display terminal Download PDFInfo
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Abstract
The invention discloses a method for adjusting the image display of a display terminal. The method comprises the steps of firstly, extracting all brightness of video signals input by an external device, secondly, dividing all the brightness of the video signals into a plurality of brightness sections according to the brightness range of a preset brightness section, dividing a low-brightness section and a high-brightness section in the brightness sections in advance, thirdly, detecting the brightness of each pixel point in each brightness section, then conducting statistics on the number of the pixel points in the brightness sections, fourthly, when more than one half of the pixel points in the brightness sections are arranged in the low-brightness section or the high-brightness section, obtaining the whole brightness distribution situation of the video signals, and correspondingly and automatically executing the adjusting operation of the preset brightness. According to the method for adjusting the image display of the display terminal and the display terminal, different images can be displayed on the display terminal, the brightness of the images can be automatically adjusted, and the images of the display terminal have the better display effect.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of method and display terminal thereof that regulates display terminal picture disply.
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's indispensable ingredient of living.
At present, computer game has more and more been subject to popular welcome, and user is more and more higher to the quality requirements of game picture.Especially concerning professional game player, robbing of need to racing against time preponderated, and the game picture of main flow has the existence of the darker picture of a lot of brightness now, can not well see landform or the hiding enemy in dark place clearly, in the milli of mistake, and 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 the effect highlighting compared with dark-part to reach brightness by revising color gamma curve (RGB gamma) at present, if the inner gamma table (gamma table) of using 1:1 of the Master control chip of display, what display called is exactly the gamma table gamma table curve that display pannel (panel) has self, if 1:1 gamma table gamma table is not used in the master chip inside of display, the picture part of low GTG brightness is improved, draw high the gamma gamma curve of low GTG, the effect that realization improves the picture portion of low GTG brightness.
But, if the picture part integral body of low GTG brightness is drawn high, after operation, the dark picture brightness of display can wholely improve like this, can cause the whole graying white of display picture, picture detail is lost, picture effect is not good, and for example this black place is black not, and game loading picture generally all should be more black, after but integral body highlights, this picture is partially white.In addition, popular game is varied in the market, different game picture brightness and colour component are variant, because the gamma table gamma table of prior art fixes, can not take into account all game, existing disposal route can only be for part game picture, therefore, make troubles to user's routine use display, badly influence user the product of display is used to impression.
Therefore, at present in the urgent need to developing a kind of technology, it can be when the darker picture of display terminal display brightness, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect,, thus time of user's preciousness can be saved, work efficiency when raising user uses display terminal, strengthens user the product of display terminal is used to impression.
Summary of the invention
In view of this, the object of this invention is to provide a kind of method and display terminal thereof that regulates display terminal picture disply, it can be when display terminal shows different pictures, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thereby can save the time of user's preciousness, work efficiency when raising user uses display terminal, strengthens user the product of display terminal is used to impression, is of great practical significance.
For this reason, the invention provides a kind of method that regulates display terminal picture disply, comprise the following steps:
The first step, whole brightness of extracting the vision signal of external device (ED) input;
Second step, according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein;
The 3rd step, detects the brightness of each each pixel of brightness section the inside, the pixel number that then statistics wherein has;
The 4th step, the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
Wherein, described default brightness adjustment operation is specially:
According to default fixed proportion, improve the brightness that is positioned at described low-light level interval pixel, and keep or reduce according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
Wherein, in described default brightness adjustment operation, 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, according to default GTG amplitude, progressively improve, and when reducing according to default fixed proportion the brightness that is positioned at pixel between described high luminance area, according to default GTG amplitude, progressively reduce.
Wherein, the vision signal of described external device (ED) input is YUV signal or rgb signal.
In addition, the present invention also provides 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 according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divides in advance between low-light level interval and high luminance area wherein;
Brightness detection unit, is connected with brightness section division unit, and for detection of the brightness of each each pixel of brightness section the inside, the pixel number that then statistics wherein has, then sends to testing result brightness regulation control module;
Brightness regulation control module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
Wherein, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is to be positioned at described low-light level interval, according to default fixed proportion, improves the brightness that is positioned at described low-light level interval pixel;
High brightness adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between high luminance area, keeps or reduces according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
Wherein, described low-light level adjusting module comprises that the first brightness smoothly adjusts submodule, for when improving according to default fixed proportion while being positioned at the brightness of described low-light level interval pixel, according to default GTG amplitude, progressively improves;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reducing according to default fixed proportion the brightness that is positioned at pixel between described high luminance area, according to default GTG amplitude, progressively reduces.
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 method and display terminal thereof that regulates display terminal picture disply, first it extract whole brightness of the vision signal of external device (ED) input, then according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein, then detect the brightness of each each pixel of brightness section the inside, then the pixel number (being distribution situation) that statistics wherein has, the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.Therefore, the present invention can be when display terminal shows different pictures, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus time of user's preciousness can be saved, improve the work efficiency of user while using display terminal, strengthen user the product of display terminal is used to impression, be of great practical significance.
Accompanying drawing explanation
Fig. 1 is a kind of process flow diagram that regulates the method for display terminal picture disply 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 better the present invention program, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Referring to Fig. 1, a kind of method that regulates display terminal picture disply provided by the invention, comprises the following steps:
Step S101: whole brightness of extracting the vision signal of external device (ED) (a for example computing machine) input; Step S102: according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein;
Step S103: detect the brightness of each each pixel of brightness section the inside, the pixel number (being distribution situation) that then statistics wherein has;
Step S104: the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
In the present invention, described display terminal can comprise mobile phone, PDA(palm PC), any device with menu display function such as mobile PC, panel computer, graphoscope.
In the present invention, it should be noted that, the vision signal of external device (ED) input can be the various vision signals that described display terminal support shows, the vision signal of described external device (ED) input can comprise YUV signal or rgb signal.
For the present invention, in step S102, described default brightness section brightness range can be set according to user's needs, for example, when the whole brightness that have 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 the whole brightness that described vision signal had are divided, and are divided into 16 brightness section.It should be noted that, these 256 gray scales are according to arranging to order white, from low-light level to high brightness from black, for the present invention, the low-light level interval that can divide in advance is wherein: between 0 ~ 15 gray area, between between 16 ~ 31 gray areas and 32 ~ 47 gray areas, certainly can also be according to user's needs, divide in advance between other gray area interval as low-light level; Can divide in advance wherein and between high luminance area be: between 224 ~ 239 gray areas and between 240 ~ 255 gray areas, certainly according to user's needs, 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 default brightness adjustment operation is specially:
According to default fixed proportion, improve the brightness that is positioned at described low-light level interval pixel, and keep or reduce according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
For the present invention, in described default brightness adjustment operation, for brightness regulation being carried out to level and smooth smoothization, process, bright dark gradual transition, the negative effect that there will not be picture to highlight 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, according to default GTG amplitude, progressively improve, and when reduce the brightness that be positioned at pixel between described high luminance area according to default fixed proportion, for example, according to progressively reduction of default GTG amplitude (each GTG amplitude or in every two GTG amplitudes).
Therefore, compared with prior art, for a kind of method that regulates display terminal picture disply provided by the invention, first it extract whole brightness of the vision signal of external device (ED) input, then according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein, then detect the brightness of each each pixel of brightness section the inside, then the pixel number (being distribution situation) that statistics wherein has, the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.Therefore, the present invention can be when display terminal shows different pictures, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus time of user's preciousness can be saved, improve the work efficiency of user while using display terminal, strengthen user the product of display terminal is used to impression, be of great practical significance.
Referring to Fig. 2, in specific implementation, a kind of method that regulates display terminal picture disply providing based on the invention described above, the present invention also provides a kind of display terminal, comprising:
Brightness section division unit 202, be connected with brightness extraction unit 201, be used for according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein;
Brightness regulation control module 204, be connected with brightness detection unit 203, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
In the present invention, described display terminal can comprise mobile phone, PDA(palm PC), any device with menu display function such as mobile PC, panel computer, graphoscope.
In the present invention, the vision signal of external device (ED) input can be the various vision signals that described display terminal support shows, 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 be set according to user's needs, for example, when the whole brightness that have when described vision signal (as YUV signal) have the brightness of 256 GTGs, can set 16 GTGs is default brightness section brightness range, then whole brightness that the described vision signal in 202 pairs of picture interval division unit has are divided, and are divided into 16 brightness section.It should be noted that, these 256 gray scales are according to arranging to order white, from low-light level to high brightness from black, for the present invention, the low-light level interval that can divide in advance is wherein: between 0 ~ 15 gray area, between between 16 ~ 31 gray areas and 32 ~ 47 gray areas, certainly can also be according to user's needs, divide in advance between other gray area interval as low-light level; Can divide in advance wherein and between high luminance area be: between 224 ~ 239 gray areas and between 240 ~ 255 gray areas, certainly according to user's needs, 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 default brightness adjustment operation is specifically as follows: according to default fixed proportion, improve the brightness that is positioned at described low-light level interval pixel, and keep or reduce according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.Therefore, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is to be positioned at described low-light level interval, according to default fixed proportion, improves the brightness that is positioned at described low-light level interval pixel;
High brightness adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between high luminance area, keeps or reduces according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
For the present invention, in described default brightness adjustment operation, for brightness regulation being carried out to level and smooth smoothization, process, bright dark gradual transition, the negative effect that there will not be picture to highlight suddenly, described low-light level adjusting module comprises that the first brightness smoothly adjusts submodule, for when improving according to default fixed proportion while being positioned at the brightness of described low-light level interval pixel, according to default GTG amplitude, progressively improves;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reduce the brightness that is positioned at pixel between described high luminance area according to default fixed proportion, for example, according to progressively reduction of default GTG amplitude (each GTG amplitude or in every two GTG amplitudes).
In the present invention, described display terminal can comprise any devices with menu display function such as display and all-in-one.
In the present invention, in specific implementation, described input display unit 201 is preferably the i.e. display chip of graphic process unit GPU(),
In the present invention, described picture interval division unit 202, picture brightness detecting unit 203 and brightness regulation control module 204 can be 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 default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein, then detect the brightness of each each pixel of brightness section the inside, then the pixel number (being distribution situation) that statistics wherein has, the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.Therefore, the present invention can be when display terminal shows different pictures, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thus time of user's preciousness can be saved, improve the work efficiency of user while using display terminal, strengthen user the product of display terminal is used to impression, be of great practical significance.
Therefore, in sum, compared with prior art, for a kind of method and display terminal thereof that regulates display terminal picture disply provided by the invention, it can be when display terminal shows different pictures, automatically regulate the brightness of picture, make the picture of display terminal there is preferably display effect, make dark portion details better outstanding, brightness improves, the better effect of picture overall contrast, thereby can save the time of user's preciousness, work efficiency when raising user uses display terminal, strengthen user the product of display terminal is used to impression, be of great practical significance.
The display terminal that the application of the invention provides, can, so that the convenience of people's life is greatly improved, greatly improve people's living standard.
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 (9)
1. a method that regulates display terminal picture disply, is characterized in that, comprises the following steps:
The first step, whole brightness of extracting the vision signal of external device (ED) input;
Second step, according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divide in advance between low-light level interval and high luminance area wherein;
The 3rd step, detects the brightness of each each pixel of brightness section the inside, the pixel number that then statistics wherein has;
The 4th step, the pixel that surpasses half in whole pixels that all brightness section have is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
2. the method for claim 1, is characterized in that, described default brightness adjustment operation is specially:
According to default fixed proportion, improve the brightness that is positioned at described low-light level interval pixel, and keep or reduce according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
3. method as claimed in claim 2, is characterized in that, in described default brightness 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, according to default GTG amplitude, progressively improve, and when reducing according to default fixed proportion the brightness that is positioned at pixel between described high luminance area, according to default GTG amplitude, progressively reduce.
4. the method for claim 1, is characterized in that, the vision signal of described external device (ED) input is YUV signal or rgb signal.
5. 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 according to default brightness section brightness range, whole brightness that described vision signal is had are divided into a plurality of brightness section, and divides in advance between low-light level interval and high luminance area wherein;
Brightness detection unit, is connected with brightness section division unit, and for detection of the brightness of each each pixel of brightness section the inside, the pixel number that then statistics wherein has, then sends to testing result brightness regulation control module;
Brightness regulation control module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between described low-light level interval or high luminance area, know the overall brightness distribution situation of described vision signal, automatically perform accordingly default brightness adjustment operation.
6. display terminal as claimed in claim 5, is characterized in that, described brightness regulation control module comprises:
Low-light level adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is to be positioned at described low-light level interval, according to default fixed proportion, improves the brightness that is positioned at described low-light level interval pixel;
High brightness adjusting module, be connected with brightness detection unit, the pixel that surpasses half for the whole pixels that have when all brightness section is while being positioned between high luminance area, keeps or reduces according to default fixed proportion the brightness that is positioned at pixel between described high luminance area.
7. display terminal as claimed in claim 6, it is characterized in that, described low-light level adjusting module comprises that the first brightness smoothly adjusts submodule, for when improving according to default fixed proportion while being positioned at the brightness of described low-light level interval pixel, according to default GTG amplitude, progressively improves;
Described high brightness adjusting module comprises the second brightness adjustment submodule, for when reducing according to default fixed proportion the brightness that is positioned at pixel between described high luminance area, according to default GTG amplitude, progressively reduces.
8. display terminal as claimed in claim 5, is characterized in that, the vision signal of described external device (ED) input is YUV signal or rgb signal.
9. display terminal as claimed in claim 5, is characterized in that, described brightness extraction unit is graphic process unit GPU.
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