CN106328028A - Image brightness adjusting method and image brightness adjusting device - Google Patents
Image brightness adjusting method and image brightness adjusting device Download PDFInfo
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- CN106328028A CN106328028A CN201610719111.7A CN201610719111A CN106328028A CN 106328028 A CN106328028 A CN 106328028A CN 201610719111 A CN201610719111 A CN 201610719111A CN 106328028 A CN106328028 A CN 106328028A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/002—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
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Abstract
The invention is applicable to the field of image display processing, and provides an image brightness adjusting method and an image brightness adjusting device. The method comprises the steps of acquiring the color values of the pixels in a to-be-processed image, performing compensation operation on the color values of the pixels according a color compensation value to calculate the compensated color values of the pixels, and displaying the to-be-processed image according to the compensated color values of the pixels.
Description
Technical field
The invention belongs to image display process field, particularly relate to a kind of brightness of image method of adjustment and device.
Background technology
Display Technique is a kind of technology being most widely used at present, can apply in every field.Current display skill
What art employing was most is to utilize fluorescent tube to project, as aobvious in numeral optical processing (Digital Process Light, DPL) projection
Showing technology, as a kind of novel Display Technique, due to it, the image shown is clear, brightness is high, rich color, in field of display
In have a wide range of applications.
And produce and the process of use due to environment unholiness, use the outside other factors such as overlong time often to occur
The critical piece of projection, as fluorescent tube or lamp bead are stained with the brightness of image that the factor such as dust or components aging causes display to show
Uneven.
Summary of the invention
The present invention provides a kind of method for regulating brightness of display and device, it is intended to the brightness of image that solution display shows is not
Uniform problem.
For solving above-mentioned technical problem, the present invention is achieved in that a kind of brightness of image method of adjustment and device, described
Method includes: obtain the color value of pixel in pending image；According to color compensating value, the color value of described pixel is entered
Row compensation operation, calculates the color value after described pixel compensates；Described pending image is compensated according to described pixel
After color value show.
A kind of brightness of image adjusting apparatus, described device includes: acquisition module, is used for obtaining pixel in pending image
Color value；Computing module, for according to color compensating value, compensates computing to the color value of described pixel, calculates
Color value after the compensation of described pixel；Display module, after compensating described pending image according to described pixel
Color value shows.
The present invention compared with prior art, has the beneficial effects that: obtain the color value of pixel in pending image, should
The color compensating value of the color value of pixel and this pixel carries out multiplying, calculates the color of the pixel after compensation
Value, the color value after being compensated according to this pixel by this pending image shows, so, picture in the image pending to this
The color of vegetarian refreshments compensates, and have adjusted the brightness of image that display shows so that the brightness of image that display shows is uniform.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention.
Fig. 1 be first embodiment of the invention provide a kind of brightness of image method of adjustment realize schematic flow sheet；
Fig. 2 be second embodiment of the invention provide a kind of brightness of image method of adjustment realize schematic flow sheet；
Fig. 3 is a kind of brightness of image adjusting apparatus schematic diagram that third embodiment of the invention provides；
Fig. 4 is a kind of brightness of image adjusting apparatus schematic diagram that fourth embodiment of the invention provides.
Detailed description of the invention
For making the goal of the invention of the present invention, feature, the advantage can be the most obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described reality
Executing example is only a part of embodiment of the present invention, and not all embodiments.Based on the embodiment in the present invention, people in the art
The every other embodiment that member is obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
It is all that the brightness of image method of adjustment that the embodiment of the present invention provides can apply to camera, display, display screen etc.
Have in the terminal of display function.
The flow process that realizes referring to the brightness of image method of adjustment that Fig. 1, Fig. 1 provide for first embodiment of the invention is illustrated
Figure, can be applicable to have in the display device of display function, and the image processing method shown in Fig. 1 mainly comprises the steps that
S101, obtain the color value of pixel in pending image；
This pending image is the image of brightness to be regulated, can be still image, it is also possible to in video to be played
A certain two field picture.The method obtaining this pending image is unrestricted, can obtain this pending image by terminal, it is also possible to
A certain two field picture is captured as this pending image from video to be played.
The color value of this pixel can utilize multiple color pattern to be indicated, such as RGB pattern, Lab color mould
Formula, wherein, L represents the brightness of color, and a represents that bottle green arrives bright peach intensity of variation again to Lycoperdon polymorphum Vitt；B represents that sapphirine arrives
Lycoperdon polymorphum Vitt arrives the intensity of variation of yellow, and other color mode again.
S102, the color compensating value of the color value of this pixel Yu this pixel is carried out multiplying, calculate this picture
Color value after vegetarian refreshments compensation；
This color compensating value is the numerical value that the brightness to this pixel compensates.
S103, by this pending image according to this pixel compensate after color value show.
In the embodiment of the present invention, obtain the color value of pixel in pending image, by the color value of this pixel and should
The color compensating value of pixel carries out multiplying, calculates the color value of the pixel after compensation, is pressed by this pending image
Color value after compensating according to this pixel shows, so, is carried out by the color of pixel in the image pending to this
Compensate, have adjusted the brightness of image that display shows so that the brightness of image that display shows is uniform.
The flow process that realizes referring to the brightness of image method of adjustment that Fig. 2, Fig. 2 provide for second embodiment of the invention is illustrated
Figure, can be applicable to have in the display device of display function, and the image processing method shown in Fig. 2 mainly comprises the steps that
S201, pending image is divided into multirow and multiple row according to putting in order of pixel；
This pending image is the image of brightness to be regulated, can be still image, it is also possible to in video to be played
A certain two field picture.The method obtaining this pending image is unrestricted, can obtain this pending image by terminal, it is also possible to
A certain two field picture is captured as this pending image from video to be played.
In actual applications, by pending image according to before the putting in order and be divided into multirow and multiple row of pixel,
Needing first to transmit video signal or the picture signal at this pending image place, such as DVI, the signal such as AV, VGA, HDMI is converted into
Accessible digital signal.
S202, the line number obtaining this pixel place and columns；
If the line number at the place of this pixel is m, the columns at place is n.
The color of described pixel is indicated by S203, employing RGB color mode, obtains with described line number and institute
State the color value of the described pixel that columns is coordinate；
The color value of this pixel includes red value, green value and blue valve.If the red value of this pixel be R (m,
N), green value be G (m, n), blue valve be B (m, n).
S204, this line number of this pixel and this columns and penalty coefficient are compensated computing, draw this pixel
Color compensating value；
The color compensating value of this pixel includes red offset, green offset and blue offset.
If this redness offset is Ar(m, n), green offset be Ag(m, n) and blue offset is Ab(m, n), then:
Ar(m, n)=arm2+brn2+crm+drn+er；
Ag(m, n)=agm2+bgn2+cgm+dgn+eg；
Ab(m, n)=abm2+bbn2+cbm+dbn+eb；
Wherein, ar、br、cr、dr、er、ag、bg、cg、dg、eg、ab、bb、cb、dbAnd ebIt is respectively penalty coefficient；M=1,
2......Pm,PmFor total line number of pixel in pending image；N=1,2......VmFor pixel in pending image
Total columns.
It should be noted that according to display screen, penalty coefficient can occur that the region of brightness irregularities is configured.
S205, the red value of this pixel and this redness offset are carried out multiplying, the green value of this pixel and
Described green offset carries out multiplying, and with described blue offset, the blue valve of described pixel is carried out multiplication fortune
Calculate, the blue valve after drawing the green value after the red value after compensation, compensation respectively and compensating；
If the red value after Bu Changing be R ' (m, n), compensate after green value be G ' (m, n) and compensate after blue valve be
B ' (m, n), then:
R ' (m, n)=R (m, n) Ar(m, n)；
G ' (m, n)=G (m, n) Ag(m, n)；
B ' (m, n)=B (m, n) Ab(m, n).
S206, by this pending image according to this pixel compensate after color value show.
Alternatively, according to the method for step S201 to S205 the image in video flowing carried out brightness reconcile time, can first by
This pending image stores, and then the signal of this pending image after regulation is converted into the video signals such as DVI, LVDS
Export.So, according to the order of image in video flowing, carry out successively storing, the conversion output of brightness regulation, signal, complete
Video flowing display in the display device.
In the embodiment of the present invention, display device by pending image according to pixel put in order be divided into multirow and
Multiple row, obtains line number and the columns at this pixel place, is RGB color mode by the color conversion of this pixel, obtain with
This line number and this columns are the color value of this pixel of coordinate, and this line number and this columns to this pixel compensate fortune
Calculate, draw the color compensating value of this pixel, the color compensating value of the color value of this pixel Yu this pixel is carried out multiplication
Computing, calculates the color value after this pixel compensates, and the color value after being compensated according to this pixel by this pending image is entered
Row display, so, is compensated by the color of pixel in the image pending to this, have adjusted the image that display shows
Brightness so that the brightness of image that display shows is uniform.
Refer to the structural representation that Fig. 3, Fig. 3 are the brightness of image adjusting meanss that third embodiment of the invention provides, for
It is easy to explanation, illustrate only the part relevant to the embodiment of the present invention.Before the brightness of image adjusting means of Fig. 3 example can be
The executive agent of the brightness of image control method of Fig. 1 and embodiment illustrated in fig. 2 offer is provided, can be display image device or display
A control module in image device.The brightness of image adjusting means of Fig. 3 example, specifically includes that acquisition module 31, computing mould
Block 32 and display module 33.The most each functional module describes in detail as follows:
Acquisition module 31, for obtaining the color value of pixel in pending image；
This pending image is the image of brightness to be regulated, can be still image, it is also possible to in video to be played
A certain two field picture.The method obtaining this pending image is unrestricted, can obtain this pending image by terminal, it is also possible to
A certain two field picture is captured as this pending image from video to be played.
The color value of this pixel can utilize multiple color pattern to be indicated, such as RGB pattern, Lab color mould
Formula, wherein, L represents the brightness of color, and a represents that bottle green arrives bright peach intensity of variation again to Lycoperdon polymorphum Vitt；B represents that sapphirine arrives
Lycoperdon polymorphum Vitt arrives the intensity of variation of yellow, and other color mode again.
Computing module 32, for according to color compensating value, compensates computing to the color value of this pixel, calculates this
Color value after pixel compensation；
This color compensating value is the numerical value that the brightness to this pixel compensates.
Display module 33, the color value after being compensated according to this pixel by this pending image shows.
In the embodiment of the present invention, acquisition module 31 obtains the color value of pixel in pending image, and computing module 32 will
The color compensating value of the color value of this pixel and this pixel carries out multiplying, calculates the color of the pixel after compensation
Value, the color value after this pending image is compensated by display module 33 according to this pixel shows, so, by treating this
In the image processed, the color of pixel compensates, and have adjusted the brightness of image that display shows so that display shows
Brightness of image is uniform.
Refer to the structural representation that Fig. 4, Fig. 3 are the brightness of image adjusting meanss that fourth embodiment of the invention provides, for
It is easy to explanation, illustrate only the part relevant to the embodiment of the present invention.Before the brightness of image adjusting means of Fig. 4 example can be
The executive agent of the brightness of image control method of Fig. 1 and embodiment illustrated in fig. 2 offer is provided, can be display image device or display
A control module in image device.The brightness of image adjusting means of Fig. 4 example, specifically includes that division module 41, obtains mould
Block 42, computing module 43 and display module 44.The most each functional module describes in detail as follows:
Divide module 41, for this pending image is divided into multirow and multiple row according to putting in order of pixel；
This pending image is the image of brightness to be regulated, can be still image, it is also possible to in video to be played
A certain two field picture.The method obtaining this pending image is unrestricted, can obtain this pending image by terminal, it is also possible to
A certain two field picture is captured as this pending image from video to be played.
In actual applications, by pending image according to before the putting in order and be divided into multirow and multiple row of pixel,
Needing first to transmit video signal or the picture signal at this pending image place, such as DVI, the signal such as AV, VGA, HDMI is converted into
Accessible digital signal.
Acquisition module 42, for obtaining the color value of pixel in pending image；
The color value of this pixel can utilize multiple color pattern to be indicated, such as RGB pattern, Lab color mould
Formula, wherein, L represents the brightness of color, and a represents that bottle green arrives bright peach intensity of variation again to Lycoperdon polymorphum Vitt；B represents that sapphirine arrives
Lycoperdon polymorphum Vitt arrives the intensity of variation of yellow, and other color mode again.
Computing module 32, for according to color compensating value, compensates computing to the color value of this pixel, calculates this
Color value after pixel compensation；
Optionally, acquisition module 42, it is additionally operable to obtain line number and the columns at this pixel place.
If the line number at the place of this pixel is m, the columns at place is n.
Optionally, acquisition module 42, it is additionally operable to use RGB color mode that the color of this pixel is indicated,
To the color value with this line number He this columns this pixel as coordinate；
The color value of this pixel includes red value, green value and blue valve.If the red value of this pixel be R (m,
N), green value be G (m, n), blue valve be B (m, n).Computing module 43, for according to color compensating value, the face to this pixel
Colour compensates computing, calculates the color value after this pixel compensates；
Optionally, computing module 43, is additionally operable to this line number to this pixel and this columns and penalty coefficient is mended
Repay computing, draw the color compensating value of this pixel；
The color compensating value of this pixel includes red offset, green offset and blue offset.
If this redness offset is Ar(m, n), green offset be Ag(m, n) and blue offset is Ab(m, n), then:
Ar(m, n)=arm2+brn2+crm+drn+er；
Ag(m, n)=agm2+bgn2+cgm+dgn+eg；
Ab(m, n)=abm2+bbn2+cbm+dbn+eb；
Wherein, ar、br、cr、dr、er、ag、bg、cg、dg、eg、ab、bb、cb、dbAnd ebIt is respectively penalty coefficient；M=1,
2......Pm,PmFor total line number of pixel in pending image；N=1,2......VmFor pixel in pending image
Total columns.
It should be noted that according to display screen, penalty coefficient can occur that the region of brightness irregularities is configured.
Optionally, computing module 43, it is additionally operable to the red value of this pixel and this redness offset are carried out multiplying,
Red value after being compensated；
Optionally, computing module 43, the green value being additionally operable to this pixel carries out multiplying with this green offset,
Green value after compensation；
Optionally, computing module 43, the blue valve being additionally operable to this pixel carries out multiplying with this blueness offset,
Blue valve after compensation；
If the red value after Bu Changing be R ' (m, n), compensate after green value be G ' (m, n) and compensate after blue valve be
B ' (m, n), then:
R ' (m, n)=R (m, n) Ar(m, n)；
G ' (m, n)=G (m, n) Ag(m, n)；
B ' (m, n)=B (m, n) Ab(m, n).
Display module 44, the color value after being compensated according to this pixel by this pending image shows.
Alternatively, in actual applications, display device also includes memory module and modular converter, by the image in video flowing
When carrying out brightness conciliation, can first carry out being stored in this memory module by this pending image, then, utilize modular converter to adjust
The signal of this pending image after joint is converted into the video signals such as DVI, LVDS and exports.So, scheme according in video flowing
The order of picture, carries out storing, the conversion output of brightness regulation, signal successively, completes video flowing and shows in this display module 44
Show.
In the embodiment of the present invention, divide module 41 by pending image according to pixel put in order be divided into multirow with
And multiple row, acquisition module 42 obtains line number and the columns at this pixel place, and acquisition module 42 is by the color conversion of this pixel
For RGB color mode, obtaining with the color value of this line number He this columns this pixel as coordinate, computing module 43 is to this
This line number of pixel and this columns compensate computing, draw the color compensating value of this pixel, and computing module 43 is by this picture
The color value of vegetarian refreshments carries out multiplying with the color compensating value of this pixel, calculates the color value after this pixel compensates,
Color value after this pending image is compensated by display module 44 according to this pixel shows, so, by waiting to locate to this
In the image of reason, the color of pixel compensates, and have adjusted the brightness of image that display shows so that the figure that display shows
Image brightness is uniform.
In multiple embodiments provided herein, it should be understood that disclosed system, apparatus and method, permissible
Realize by another way.Such as, device embodiment described above is only schematically, such as, and described module
Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple modules or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussed or direct-coupling or communication linkage can be the indirect couplings by some interfaces, device or module
Close or communication linkage, can be electrical, machinery or other form.
The described module illustrated as separating component can be or may not be physically separate, shows as module
The parts shown can be or may not be physical module, i.e. may be located at a place, or can also be distributed to multiple
On mixed-media network modules mixed-media.Some or all of module therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional module in each embodiment of the present invention can be integrated in a processing module, it is also possible to
It is that modules is individually physically present, it is also possible to two or more modules are integrated in a module.Above-mentioned integrated mould
Block both can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.
If described integrated module realizes and as independent production marketing or use using the form of software function module
Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be personal computer, server, or the network equipment etc.) performs the complete of method described in each embodiment of the present invention
Portion or part steps.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It should be noted that for aforesaid each method embodiment, in order to simplicity describes, therefore it is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement because
According to the present invention, some step can use other order or carry out simultaneously.Secondly, those skilled in the art also should know
Knowing, it might not be all this that embodiment described in this description belongs to preferred embodiment, involved action and module
Bright necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiments.
It is more than to brightness of image control method provided by the present invention and the description of device, for those skilled in the art
Member, according to the thought of the embodiment of the present invention, the most all will change, to sum up, and this theory
Bright book content should not be construed as limitation of the present invention.
Claims (10)
1. a brightness of image method of adjustment and device, it is characterised in that described method includes:
Obtain the color value of pixel in pending image；
According to color compensating value, the color value of described pixel is compensated computing, after calculating the compensation of described pixel
Color value；
Color value after being compensated according to described pixel by described pending image shows.
2. the method for claim 1, it is characterised in that in the pending image of described acquisition the color value of pixel it
Before, also include:
Described pending image is divided into multirow and multiple row according to putting in order of pixel；
Obtain line number and the columns at described pixel place.
3. method as claimed in claim 2, it is characterised in that the color value of pixel in the pending image of described acquisition, tool
Body includes:
Use RGB color mode that the color of described pixel is indicated, obtain with described line number and described columns for sitting
The color value of pixel described in target, the color value of described pixel includes red value, green value and blue valve.
4. method as claimed in claim 2, it is characterised in that described according to color compensating value, the color to described pixel
Value compensates computing, before calculating the color value after described pixel compensates, also includes:
The described line number of described pixel and described columns and penalty coefficient are compensated computing, draws described pixel
Color compensating value, the color compensating value of described pixel includes red offset, green offset and blue offset.
5. method as claimed in claim 4, it is characterised in that described according to color compensating value, the color to described pixel
Value compensates computing, calculates the color value after described pixel compensates, specifically includes:
The red value of described pixel is carried out multiplying with described red offset, the red value after being compensated；
The green value of described pixel is carried out multiplying with described green offset, the green value after being compensated；
The blue valve of described pixel is carried out multiplying with described blue offset, the blue valve after being compensated.
6. a brightness of image adjusting apparatus, it is characterised in that described device includes:
Acquisition module, for obtaining the color value of pixel in pending image；
Computing module, for according to color compensating value, compensates computing to the color value of described pixel, calculates described picture
Color value after vegetarian refreshments compensation；
Display module, the color value after being compensated according to described pixel by described pending image shows.
7. device as claimed in claim 6, it is characterised in that described device also includes:
Divide module, for described pending image is divided into multirow and multiple row according to putting in order of pixel；
Described acquisition module, is additionally operable to obtain line number and the columns at described pixel place.
8. device as claimed in claim 7, it is characterised in that
Described acquisition module, is additionally operable to use RGB color mode to be indicated the color of described pixel, obtains with institute
Stating the color value of line number and described pixel that described columns is coordinate, the color value of described pixel includes red value, green
Value and blue valve.
9. device as claimed in claim 7, it is characterised in that
Described computing module, is additionally operable to the described line number to described pixel and described columns and penalty coefficient compensates fortune
Calculating, draw the color compensating value of described pixel, the color compensating value of described pixel includes red offset, green offset
With blue offset.
10. device as claimed in claim 9, it is characterised in that
Described computing module, is additionally operable to described red offset, the red value of described pixel is carried out multiplying, obtains
Red value after compensation；
Described computing module, is additionally operable to described green offset, the green value of described pixel is carried out multiplying, obtains
Green value after compensation；
Described computing module, is additionally operable to described blue offset, the blue valve of described pixel is carried out multiplying, obtains
Blue valve after compensation.
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| CN201610719111.7A CN106328028A (en) | 2016-08-25 | 2016-08-25 | Image brightness adjusting method and image brightness adjusting device |
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| US20140002511A1 (en) * | 2005-08-26 | 2014-01-02 | Samsung Electronics Co., Ltd. | Image display device capable of supporting brightness enchancement and power control and method thereof |
| CN101510393A (en) * | 2009-03-16 | 2009-08-19 | 深圳市元亨光电股份有限公司 | Method for correcting chrominance LED whole colorful display screen based on space vector |
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