CN105513566A - Image adjusting method of executing optimal adjustment according to different environments and displayer - Google Patents

Image adjusting method of executing optimal adjustment according to different environments and displayer Download PDF

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Publication number
CN105513566A
CN105513566A CN201610049519.8A CN201610049519A CN105513566A CN 105513566 A CN105513566 A CN 105513566A CN 201610049519 A CN201610049519 A CN 201610049519A CN 105513566 A CN105513566 A CN 105513566A
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China
Prior art keywords
interval
gray
scale distribution
pixel
image
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Pending
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CN201610049519.8A
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Chinese (zh)
Inventor
林信男
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BenQ Intelligent Technology Shanghai Co Ltd
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BenQ Co Ltd
BenQ Corp
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Priority to CN201610049519.8A priority Critical patent/CN105513566A/en
Publication of CN105513566A publication Critical patent/CN105513566A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10Intensity circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control 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
    • G09G5/37Details of the operation on graphic patterns

Abstract

The invention provides an image adjusting method of executing optimal adjustment according to different environments and a displayer. The image adjusting method includes the steps that a gray scale distribution diagram of images is obtained; the number of pixels of the boundary interval of the gray scale distribution diagram is counted, the number of the pixels and a threshold value are compared, and when the number of the pixels is larger than the threshold value, the brightnesses of the pixels of the boundary interval are adjusted through a correction function. Unstable image quality caused by direct adjustment of overall image pixel brightness is avoided.

Description

Image regulating method and the display thereof of optimization adjustment can be performed according to varying environment
Technical field
The present invention relates to a kind of image regulating method and display thereof, espespecially a kind of image regulating method and display thereof that can perform optimization adjustment according to varying environment.
Background technology
The picture brightness of display, along with the change of place ambient brightness, has significantly different visual experiences to user.For example, be placed on bright ring domestic display when maintaining first order brightness, the picture that user watches this first order brightness can't feel uncomfortable; But when display to move on in dark situation and still maintains first order brightness, will be too dazzling concerning the picture of this brightness user.In order to overcome this defect, just develop a kind of display with backlight illumination automatic regulating function, utilize luminance detection device detect arround ambient brightness, and the backlight illumination of the environmentally corresponding adjustment display of brightness.But traditional backlight illumination adjustment technology changes the overall brightness of picture, easily allow the specific high-brghtness picture images in picture or low-luminosity picture become and be more difficult to identification, there is the shortcoming of image quality instability.
Summary of the invention
The object of the present invention is to provide a kind of image regulating method and the display thereof that can perform optimization adjustment according to varying environment, to solve above-mentioned problem.
For achieving the above object, the present invention discloses a kind of image regulating method, comprise step: the gray-scale distribution figure producing image, add up the pixel quantity of the boundary interval of this gray-scale distribution figure, relatively this pixel quantity and threshold value, and when this pixel quantity is greater than this threshold value, utilize correction function to adjust each pixel intensity of this boundary interval.
Preferably, this image regulating method also comprises step: according to gray-scale distribution situation, this gray-scale distribution figure is sequentially divided into multiple interval.
Preferably, this correction function has multiple, and this pixel intensity of this boundary interval is according to the number of this pixel quantity and selectivity applies mechanically one of them of this correction function multiple.
Preferably, image regulating method also comprises step: the pixel intensity adjusting another boundary interval of this gray-scale distribution figure according to parameter preset, and another boundary interval of this boundary interval and this is that two of this gray-scale distribution figure are relative interval.
Preferably, this boundary interval is between the high luminance area of this gray-scale distribution figure, and this correction function is in order to reduce the pixel intensity between this high luminance area.
Preferably, this another boundary interval is that the low-light level of this gray-scale distribution figure is interval, and the pixel intensity in this low-light level interval is according to the corresponding improve of this parameter preset.
Preferably, this boundary interval is that the low-light level of this gray-scale distribution figure is interval, and this correction function is in order to improve the pixel intensity in this low-light level interval.
Preferably, this another boundary interval is between the high luminance area of this gray-scale distribution figure, and the pixel intensity between this high luminance area is according to the corresponding reduction of this parameter preset.For achieving the above object, the present invention separately discloses a kind of display, comprises: panel unit and arithmetic processor.This panel unit is used for show image.This arithmetic processor is electrically connected this panel unit.This arithmetic processor produces the gray-scale distribution figure of this image, and add up the pixel quantity of a boundary interval of this gray-scale distribution figure, and this pixel quantity is compared with threshold value, when this pixel quantity is greater than this threshold value, utilize correction function to adjust each pixel intensity of this boundary interval.
Preferably, this gray-scale distribution figure is sequentially divided into multiple interval according to gray-scale distribution situation by this arithmetic processor.
Preferably, this arithmetic processor is built-in multiple correction function, and this pixel intensity of this boundary interval is according to the number of this pixel quantity and selectivity applies mechanically one of them of this multiple correction function.
Preferably, this arithmetic processor adjusts the pixel intensity of another boundary interval of this gray-scale distribution figure according to parameter preset, and another boundary interval of this boundary interval and this is two relative intervals of this gray-scale distribution figure.
Preferably, this boundary interval is between the high luminance area of this gray-scale distribution figure, and this correction function is in order to reduce the pixel intensity between this high luminance area.
Preferably, this another boundary interval is that the low-light level of this gray-scale distribution figure is interval, and the pixel intensity in this low-light level interval is according to the corresponding improve of this parameter preset.
Preferably, this boundary interval is that the low-light level of this gray-scale distribution figure is interval, and this correction function is in order to improve the pixel intensity in this low-light level interval.
Preferably, this another boundary interval is between the high luminance area of this gray-scale distribution figure, and the pixel intensity between this high luminance area is according to the corresponding reduction of this parameter preset.
Preferably, this display also comprises: luminance detection device, be electrically connected on this arithmetic processor, this luminance detection device is used for detecting the ambient brightness at this display place, with the backlight illumination making this arithmetic processor can adjust this panel unit according to the detecting result of this ambient brightness.
Image regulating method of the present invention and display thereof can perform the optimization adjustment of image according to varying environment, image brilliance is adjusted to automatically the degree being suitable for place environment and the comfortable viewing of human eye energy.First image regulating method according to the backlight illumination of the ambient brightness detecting result adjustment image of luminance detection device, but can may cause the pattern distortion between part clear zone or between dark space in the image overall brightness adjustment in this stage; Therefore image regulating method is separately from the gray-scale distribution figure of image, adds up the pixel quantity of its boundary interval, whether the pattern distortion between clear zone, judgment part or between dark space is in tolerable limit.If not, image regulating method just can directly adjust pixel intensity in this boundary interval according to parameter preset or judges pixel quantity in this boundary interval further and select any suitable functions that will apply mechanically in multiple correction function.Display of the present invention is except adapting to except varying environment from Row sum-equal matrix image backlight illumination, color can also be coordinated to adjust pixels statistics between parameters such as () such as saturation degree, colourity, sharpnesses and given zone to select suitable correction function, more high-end adaptiveization parameter adjustment is carried out to image.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the display of the embodiment of the present invention.
Fig. 2 is the process flow diagram of the image regulating method of the embodiment of the present invention.
The gray-scale distribution figure of Fig. 3 image shown by the panel unit of the embodiment of the present invention.
The image pixel brightness that Fig. 4 to Fig. 6 is respectively the embodiment of the present invention changes the curve map of adjustment under various circumstances.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Refer to Fig. 1, Fig. 1 is the functional block diagram of the display 10 of the embodiment of the present invention.Display 10 comprises panel unit 12, arithmetic processor 14 and luminance detection device 16.Panel unit 12 is used for show image, and luminance detection device 16 is used for the ambient brightness arround monitoring display 10.Arithmetic processor 14 is electrically connected on panel unit 12 and luminance detection device 16.After display 10 obtains the ambient brightness of position through luminance detection device 16, arithmetic processor 14 can according to the backlight illumination of the detecting result adjustment panel unit 12 of this ambient brightness, again in conjunction with the partial section brightness of multiple correction function adjustment panel unit 12, allow user can the more cosily image of viewing shown by panel unit 12 under various circumstances.
Refer to Fig. 2 to Fig. 6, Fig. 2 is the process flow diagram of the image regulating method of the embodiment of the present invention, the image pixel brightness that the gray-scale distribution figure of image, Fig. 4 to Fig. 6 shown by the panel unit 12 that Fig. 3 is the embodiment of the present invention are respectively the embodiment of the present invention changes the curve map of adjustment under various circumstances.Image regulating method described in Fig. 2 is applicable to the display 10 shown in Fig. 1.About this image regulating method, first perform step 200 and step 202, arithmetic processor 14 produces the gray-scale distribution figure of image, and adds up the pixel quantity of at least one boundary interval of this gray-scale distribution figure.Special one carry be, this gray-scale distribution figure can be sequentially divided into multiple interval according to gray-scale distribution situation by arithmetic processor 14, better two the retive boundary intervals utilized in this gray-scale distribution figure of image regulating method of the present invention, the interval Z2 of such as the first boundary interval Z1 or the second boundary, right practical application is not limited to this.
As long as namely the border of the first boundary interval Z1 or the contiguous gray-scale distribution figure of the interval Z2 of the second boundary meets design requirement of the present invention, restriction must not contain the border of gray-scale distribution figure.For example, the pixel value of the first boundary interval Z1 can between 230 ~ 255 scopes (containing the border of gray-scale distribution figure) or 230 ~ 250 scopes (not containing the border of gray-scale distribution figure); The pixel value of the interval Z2 of the second boundary can between 0 ~ 32 scope (containing the border of gray-scale distribution figure) or 5 ~ 32 scopes (not containing the border of gray-scale distribution figure).The scope of the first boundary interval Z1 and the interval Z2 of the second boundary is not defined as those pixel values above-mentioned, looks closely design requirement and determines.
Then, image regulating method performs step 204 with the pixel quantity of one of them boundary interval in more the plurality of interval (such as the first boundary interval Z1) and threshold value.If this pixel quantity is less than this threshold value, perform step 206, maintain panel unit 12 backlight illumination instantly, no longer adjust the partial section brightness of panel unit 12; If this pixel quantity is greater than this threshold value, perform step 208, arithmetic processor 14 utilizes correction function to adjust the pixel intensity of this boundary interval (such as the first boundary interval Z1).Image regulating method of the present invention can design and include multiple correction function, step 208 is how many according to the pixel quantity of this boundary interval (such as the first boundary interval Z1), and selectivity applies mechanically wherein a kind of correction function of this multiple correction function to adjust the partial section brightness of panel unit 12.Finally, image regulating method also can perform step 210, and arithmetic processor 14 adjusts the pixel intensity of another boundary interval (the interval Z2 of such as the second boundary) in the plurality of interval according to parameter preset; This step directly can carry out the adjustment of pixel intensity usually, and the pixel quantity of this another boundary interval of not according to and the comparative result of this threshold value decide the correction function how to adjust, are so not limited thereto.
For Fig. 2 and Fig. 3, the first boundary interval Z1 is between the high luminance area of this gray-scale distribution figure, and the interval Z2 of the second boundary is that the low-light level of this gray-scale distribution figure is interval.When this image regulating method judges that the pixel quantity of the first boundary interval Z1 is greater than this threshold value, the correction function be applicable to can be selected from multiple correction function C1, C2 to reduce the pixel intensity between this high luminance area; Simultaneously, this image regulating method also can by the pixel intensity of interval for the second boundary Z2 according to parameter preset C (it also can be certain correction function) corresponding raising, make intervally with this low-light level between this high luminance area in image to make accommodation according to the distributed number of pixel, the image after allow user cosily watch brightness adjustment that display 10 provides.
Again for Fig. 2 and Fig. 4, the first boundary interval Z1 is between the high luminance area of this gray-scale distribution figure, and the interval Z2 of the second boundary is that the low-light level of gray-scale distribution figure is interval.When this image regulating method judges that the pixel quantity of the interval Z2 of the second boundary is greater than this threshold value, the correction function be applicable to can be selected from multiple correction function C1 ', C2 ' to improve the pixel intensity in this low-light level interval; In addition, this image regulating method optionally by the pixel intensity of the first boundary interval Z1 according to the corresponding reduction of parameter preset C ', between this high luminance area in meaning and image, interval can statistics according to the distributed number of pixel makes accommodation automatically with this low-light level.
Another for Fig. 2 and Fig. 5, the first boundary interval Z1 is between the high luminance area of this gray-scale distribution figure, and the interval Z2 of the second boundary is that the low-light level of gray-scale distribution figure is interval.When this image regulating method judges that the pixel quantity of the first boundary interval Z1 is greater than this threshold value, the correction function be applicable to can be selected from multiple correction function C1, C2 to reduce the pixel intensity between this high luminance area; This image regulating method also can select the correction function be applicable to improve the pixel intensity of the interval Z2 of the second boundary from multiple correction function C1 ', C2 '.Above various embodiments teaching image regulating method of the present invention can according between the pixel quantity statistics adjustment high luminance area of gray-scale distribution figure and/or the pixel intensity in low-light level interval or also can between selectivity adjustment high luminance area with other pixel intensity interval arbitrarily in low-light level interval; But be not limited to above-mentioned those embodiments provided, depending on design requirement.
In sum, image regulating method of the present invention and display thereof can perform the optimization adjustment of image according to varying environment, image brilliance is adjusted to automatically the degree being suitable for place environment and the comfortable viewing of human eye energy.First image regulating method according to the backlight illumination of the ambient brightness detecting result adjustment image of luminance detection device, but can may cause the pattern distortion between part clear zone or between dark space in the image overall brightness adjustment in this stage; Therefore image regulating method is separately from the gray-scale distribution figure of image, adds up the pixel quantity of its boundary interval, whether the pattern distortion between clear zone, judgment part or between dark space is in tolerable limit.If not, image regulating method just can directly adjust pixel intensity in this boundary interval according to parameter preset or judge pixel quantity in this boundary interval further and selectivity will apply mechanically any suitable functions in multiple correction function.Compared to prior art, display of the present invention is except adapting to except varying environment from Row sum-equal matrix image backlight illumination, color can also be coordinated to adjust pixels statistics between parameters such as () such as saturation degree, colourity, sharpnesses and given zone to select suitable correction function, more high-end adaptiveization parameter adjustment is carried out to image.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.

Claims (18)

1. an image regulating method, is characterized in that, comprises step:
Produce the gray-scale distribution figure of image;
Add up the pixel quantity of a boundary interval of this gray-scale distribution figure;
Relatively this pixel quantity and threshold value; And
When this pixel quantity is greater than this threshold value, correction function is utilized to adjust each pixel intensity of this boundary interval.
2. image regulating method as claimed in claim 1, is characterized in that, also comprise step: according to gray-scale distribution situation, this gray-scale distribution figure is sequentially divided into multiple interval.
3. image regulating method as claimed in claim 1, it is characterized in that, this correction function has multiple, this pixel intensity of this boundary interval according to this pixel quantity number and selectivity applies mechanically one of them of this correction function multiple.
4. image regulating method as claimed in claim 1, it is characterized in that, also comprise step: the pixel intensity adjusting another boundary interval of this gray-scale distribution figure according to parameter preset, another boundary interval of this boundary interval and this is that two of this gray-scale distribution figure are relative interval.
5. image regulating method as claimed in claim 4, it is characterized in that, this boundary interval is between the high luminance area of this gray-scale distribution figure, and this correction function is in order to reduce the pixel intensity between this high luminance area.
6. image regulating method as claimed in claim 5, is characterized in that, this another boundary interval is that the low-light level of this gray-scale distribution figure is interval, and the pixel intensity in this low-light level interval is according to the corresponding improve of this parameter preset.
7. image regulating method as claimed in claim 4, is characterized in that, this boundary interval is that the low-light level of this gray-scale distribution figure is interval, and this correction function is in order to improve the pixel intensity in this low-light level interval.
8. image regulating method as claimed in claim 7, it is characterized in that, this another boundary interval is between the high luminance area of this gray-scale distribution figure, and the pixel intensity between this high luminance area is according to the corresponding reduction of this parameter preset.
9. image regulating method as claimed in claim 1, is characterized in that, also comprise step:
Luminance detection device is utilized to detect ambient brightness; And
Detecting result according to this ambient brightness adjusts this image overall brightness.
10. a display, is characterized in that, comprising:
Panel unit, is used for show image; And
Arithmetic processor, be electrically connected this panel unit, this arithmetic processor produces the gray-scale distribution figure of image, and add up the pixel quantity of a boundary interval of this gray-scale distribution figure, this pixel quantity compares with threshold value, and when this pixel quantity is greater than this threshold value, utilize correction function to adjust each pixel intensity of this boundary interval.
11. displays as claimed in claim 10, it is characterized in that, this gray-scale distribution figure is sequentially divided into multiple interval according to gray-scale distribution situation by this arithmetic processor.
12. displays as claimed in claim 10, is characterized in that, this arithmetic processor is built-in multiple correction function, and this pixel intensity of this boundary interval is according to the number of this pixel quantity and selectivity applies mechanically one of them of this multiple correction function.
13. displays as claimed in claim 10, it is characterized in that, this arithmetic processor adjusts the pixel intensity of another boundary interval of this gray-scale distribution figure according to parameter preset, and another boundary interval of this boundary interval and this is two relative intervals of this gray-scale distribution figure.
14. displays as claimed in claim 13, it is characterized in that, this boundary interval is between the high luminance area of this gray-scale distribution figure, and this correction function is in order to reduce the pixel intensity between this high luminance area.
15. displays as claimed in claim 14, is characterized in that, this another boundary interval is that the low-light level of this gray-scale distribution figure is interval, and the pixel intensity in this low-light level interval is according to the corresponding improve of this parameter preset.
16. displays as claimed in claim 13, is characterized in that, this boundary interval is that the low-light level of this gray-scale distribution figure is interval, and this correction function is in order to improve the pixel intensity in this low-light level interval.
17. displays as claimed in claim 16, it is characterized in that, this another boundary interval is between the high luminance area of this gray-scale distribution figure, and the pixel intensity between this high luminance area is according to the corresponding reduction of this parameter preset.
18. displays as claimed in claim 10, is characterized in that, also comprise:
Luminance detection device, is electrically connected on this arithmetic processor, and this luminance detection device is used for detecting the ambient brightness at this display place, with the backlight illumination making this arithmetic processor can adjust this panel unit according to the detecting result of this ambient brightness.
CN201610049519.8A 2016-01-25 2016-01-25 Image adjusting method of executing optimal adjustment according to different environments and displayer Pending CN105513566A (en)

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