CN108668411A - A kind of lampion color correcting method - Google Patents
A kind of lampion color correcting method Download PDFInfo
- Publication number
- CN108668411A CN108668411A CN201810608418.9A CN201810608418A CN108668411A CN 108668411 A CN108668411 A CN 108668411A CN 201810608418 A CN201810608418 A CN 201810608418A CN 108668411 A CN108668411 A CN 108668411A
- Authority
- CN
- China
- Prior art keywords
- lampion
- color
- original
- matrix
- xyz
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
Landscapes
- Color Image Communication Systems (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to lampion technical fields, more specifically, it is related to a kind of lampion color correcting method, it is acquired by the original optical color parameter of dot matrix of the more lampions to different batches or different usage times, and it pointedly obtains the correction coefficient matrix of every lampion and is stored in the color correction module of this lampion, correction coefficient matrix of the color correction module based on every lampion handles source signal when use, light source luminescent is driven to control driving circuit, achieve photochromic standardization and consistency, the facility that light modulation is mixed colours is brought to user.
Description
Technical field
The present invention relates to lampion technical fields, more particularly, to a kind of lampion color correcting method.
Background technology
When stage performance, can generally use more lampions simultaneously, but due in every lampion LED lamp bead because of source
There are the deviations of coloration and luminous intensity for technique, lead to same input signal, same driving current, different lampion tables
Reveal photochromic there are larger differences.This photochromic difference seriously damages standardization and the consistency of lampion, is brought to user
Dim the inconvenience of toning.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of lampion color correcting methods, can be simultaneously
More lampions are adjusted, photochromic standardization and consistency are achieved, the facility that light modulation is mixed colours is brought to user.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of lampion color correcting method is provided, the lampion includes the LED lamp bead of multiple color, every lampion
It is inside respectively provided with color correction module, is included the following steps：
S1. data acquisition and processing, include the following steps：
S11. the original optical color parameter of dot matrix of a lampion a variety of colors is acquired respectively；
S12. the original optical color parameter of collected dot matrix is handled and draws this lampion and correspond to original color gamut
The range areas that chromaticity diagram, wherein colour gamut are constituted for the number of colors that certain table color pattern can be expressed；
S13. step S11 to S12 is repeated, to obtain the chromaticity diagram that n platform lampions correspond to original color gamut, draws institute's chromatic colour
The intersection area of the chromaticity diagram of lamp is as adjustable effective colour gamut；
S2. the acquisition of the correction coefficient matrix of every lampion：Target color gamut is set in adjustable effective colour gamut, in conjunction with
The original color gamut of the every lampion obtained, is calculated the correction coefficient matrix of each lampion and is stored in this
In the color correction module of lampion；
S3. source signal is sent to the color correction module of every lampion, color correction module is based on correction coefficient matrix
Source signal is handled to obtain the signal after correcting, light source luminescent is driven using the signal control drive circuit after correction.
Preferably, the RGB three primary colours dot matrix of a lampion are acquired in step S11 respectively using optical color parameter collecting device
Original optical color parameter, the original optical color parameter of dot matrix are Yxy values under CIE Yxy color model, wherein Y is denoted as brightness value
RY_bright, GY_bright, BY_bright, xy are that chromaticity coordinates is denoted as (Rx, Ry), (Gx, Gy), (Bx, By)；When acquisition, control
Lampion processed lights feux rouges, the red original optical color parameter of dot matrix of optical color parameter collecting device acquisition at this time, repetitive operation with
The original optical color parameter of dot matrix of other primary colours is acquired, until the acquisition of all primary colours finishes；
The original optical color parameter of collected dot matrix is handled to be converted into original color gamut space three in step S12
Stimulate value matrix [XYZ_original]i, and draw this lampion in 1931 standard colorimetric systems of CIE XYZ and correspond to color
The chromaticity diagram in domain uses [X], [Y] and [Z] expression R, G and B three primary colors in 1931 standard colorimetric systems of CIE XYZ；
In step S13, step S11 to S12 is repeated, to obtain the original color gamut space tristimulus values matrix of n platform lampions
[XYZ_original]i, i 1 ... n, and corresponding chromaticity diagram is drawn, draw institute in 1931 standard colorimetric systems of CIE XYZ
The intersection area of the chromaticity diagram of chromatic colour lamp is as adjustable effective colour gamut；
In step S2, target color gamut space tristimulus values matrix [XYZ_target], knot are set in adjustable effective colour gamut
Close the original color gamut space tristimulus values matrix [XYZ_original] of the every lampion obtainedi, it is calculated each
The correction coefficient matrix [conversion_coefficient] of lampioniAnd it is stored in the colour correction of this lampion
In module.
Preferably, in step S12, the processing of formula (1) is carried out with by its turn to the original optical color parameter of collected dot matrix
It is changed to original color gamut space tristimulus values matrix [XYZ_original]i, remember [XYZ_original]iFor
Preferably, in step S2, the correction coefficient matrix [conversion_coefficient] of every lampioniMeter
Calculation mode is：Remember that [XYZ_target] is
[conversion_coefficient]iFor
[conversion_coefficient]i*[XYZ_original]i=[XYZ_target] (2)；
Wherein correction coefficient matrix [conversion_coefficient]iIn：
RR is input source signal when being red, the brightness correction coefficients of red light；
RG is input source signal when being red, the brightness correction coefficients of green light；
RB is input source signal when being red, the brightness correction coefficients of blue lamp；
GR is input source signal when being green, the brightness correction coefficients of red light；
GG is input source signal when being green, the brightness correction coefficients of green light；
GB is input source signal when being green, the brightness correction coefficients of blue lamp；
BR is input source signal when being blue, the brightness correction coefficients of red light；
BG is input source signal when being blue, the brightness correction coefficients of green light；
BB is input source signal when being blue, the brightness correction coefficients of blue lamp.
Such as the correction coefficient matrix of certain lampion of calculating is
Preferably, color correction module includes master chip and correcting chip；In step S3, the sources DMX are sent using console
For signal to master chip, master chip, to obtain each primary color channels data, 16 is converted to through dimming gamma table to source signal processing
Position [PWM_original]iValue, utilizes the correction coefficient matrix [conversion_coefficient] in correcting chipiAnd it ties
Formula (3) is closed to 16 [PWM_original]iValue is corrected, 16 [PWM_target] values of each primary colours after being corrected；
[PWM_target]=[conversion_coefficient]i*[PWM_original]i(3)；
16 [PWM_target] values of each primary colours are transmitted to master chip after correcting chip will correct, to control driving circuit acquisition pair
The different size of electric current answered makes the electric current drive light source luminescent.Such as [PWM_original]i=[R235, G60,
B120] when, correction coefficient matrix isRemember [PWM_target] be [R ', G ',
B '] when, substituting into formula (3) can acquire：
R '=R*RR+G*GR+B*BR
=235*0.815562+60*0.011104+120*0.211122
=217.66
≈218
G '=R*RG+G*GG+B*BG
=235*0.111135+60*0.845431+120*0.012226
=78.31
≈78
B '=R*RB+G*GB+B*BB
=235*0.001227+60*0.242253+120*0.764322
=106.54
≈107
I.e. input source signal [R235, G60, B120], after correction in the pixel actual signal be [R218, G78,
B107], to realize photochromic standardization and consistency.
Preferably, the lampion further includes the LED lamp bead of W colors, further includes being acquired using optical color parameter in step S1
Equipment acquires the original optical color parameter of dot matrix of the W colors of a lampion, and the original optical color parameter of dot matrix is CIE Yxy colors
Yxy values under model are denoted as WY_bright, (Wx, Wy)；Processing is carried out to WY_bright, (Wx, Wy) to obtain in CIE XYZ
The position [W_one] of white point in 1931 standard colorimetric systems；Take the intersection area conduct of all lampion chromaticity diagrams in step S13
Original intersection color gamut space tristimulus values matrix [XYZ_intersection], to the data in [XYZ_intersection] into
Row overlap-add procedure obtains [W_rgbintecsetion], and note [XYZ_intersection] is
Remember that [W_rgbintecsetion] is
[W_rgbintecsetion] is obtained by formula (4)；
By the processing to [W_one] and [W_rgbintecsetion], colour mixture correction matrix [mix_ is obtained
Coefficient], target color gamut space tristimulus values matrix [XYZ_target] is set in step S2 in adjustable effective colour gamut
It is corrected with colour mixture correction matrix [mix_coefficient] to obtain [XYZ_target_new] afterwards, in conjunction with having obtained
Every lampion original color gamut space tristimulus values matrix [XYZ_original]i, each lampion is calculated
Correction coefficient matrix [conversion_coefficient]i.It is empty can to obtain the target color gamut accurately set for setting in this way
Between tristimulus values matrix, improve it is photochromic standardization and consistency precision.
It is further preferred that note [W_one] is[W_one] is calculated by formula (5)：
Colour mixture correction matrix [mix_coefficient] is calculated by formula (6)：
[mix_coefficient] * [W_rgbintecsetion]=[W_one] (6)；
Target color gamut space tristimulus values matrix [XYZ_target] of setting is modified by formula (7)：
[XYZ_target_new]=[mix_coefficient] * [XYZ_target] (7).
It is further preferred that the minimum value in the WY_bright values of all lampions is taken to be substituted into as WY_bright values
[W_one] is calculated in formula (5).The WY_bright values of lampion may be not different on the same stage, are minimized carry out operation, to prevent
Influence colour correction result.
It is further preferred that the average value of the average value of the Wx of all lampions and the Wy of all lampions is taken to make
It is substituted into formula (5) for Wx values and Wy values and calculates [W_one].When producing lampion, the position of the LED lamp bead of W colors may
It is slightly different, is averaged by opponent-color coordinates, it is ensured that colour correction result.
Preferably, when lampion further includes the LED lamp bead of W colors, the correction coefficient of W colored lights pearls is set as 1.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of lampion color correcting method of the present invention passes through the more lampions to different batches or different usage times
The original optical color parameter of dot matrix be acquired, and pointedly obtain the correction coefficient matrix of every lampion and be stored in
In the color correction module of this lampion, correction coefficient matrix of the color correction module based on every lampion is to source when use
Signal is handled, and is driven light source luminescent to control driving circuit, is achieved photochromic standardization and consistency, brought to user
Dim the facility of toning.
Description of the drawings
Fig. 1 is signal flow direction when being corrected to every lampion in a kind of lampion color correcting method of the present embodiment
Figure.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on attached drawing to have the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right"
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore position relationship described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment
The present embodiment provides a kind of lampion color correcting method, the lampion includes the LED lamp bead of multiple color, often
Platform lampion is respectively provided with color correction module, includes the following steps：
S1. data acquisition and processing, include the following steps：
S11. the original optical color parameter of dot matrix of a variety of colors of a lampion is acquired respectively；
S12. the original optical color parameter of collected dot matrix is handled and draws this lampion and correspond to original color gamut
The range areas that chromaticity diagram, wherein colour gamut are constituted for the number of colors that certain table color pattern can be expressed；
S13. step S11 to S12 is repeated, to obtain the chromaticity diagram that n platform lampions correspond to original color gamut, draws institute's chromatic colour
The intersection area of the chromaticity diagram of lamp is as adjustable effective colour gamut；
S2. the acquisition of the correction coefficient matrix of every lampion：Target color gamut is set in adjustable effective colour gamut, in conjunction with
The original color gamut of the every lampion obtained, is calculated the correction coefficient matrix of each lampion and is stored in this
In the color correction module of lampion；
S3. source signal is sent to the color correction module of every lampion, color correction module is based on correction coefficient matrix
Source signal is handled to obtain the signal after correcting, light source luminescent is driven using the signal control drive circuit after correction.
In the present embodiment, the RGB three primary colours of a lampion are acquired in step S11 respectively using optical color parameter collecting device
The original optical color parameter of dot matrix, the original optical color parameter of dot matrix are Yxy values under CIE Yxy color model, wherein Y is brightness value
It is denoted as RY_bright, GY_bright, BY_bright, xy is that chromaticity coordinates is denoted as (Rx, Ry), (Gx, Gy), (Bx, By)；Acquisition
When, control lampion lights feux rouges, and the red original optical color parameter of dot matrix of optical color parameter collecting device acquisition at this time repeats to grasp
Make to acquire the original optical color parameter of dot matrix of other primary colours, until the acquisition of all primary colours finishes；
The original optical color parameter of collected dot matrix is handled to be converted into original color gamut space three in step S12
Stimulate value matrix [XYZ_original]i, and draw this lampion in 1931 standard colorimetric systems of CIE XYZ and correspond to color
The chromaticity diagram in domain uses [X], [Y] and [Z] expression R, G and B three primary colors in 1931 standard colorimetric systems of CIE XYZ；
In step S13, step S11 to S12 is repeated, to obtain the original color gamut space tristimulus values matrix of n platform lampions
[XYZ_original]i, i 1 ... n, and corresponding chromaticity diagram is drawn, draw institute in 1931 standard colorimetric systems of CIE XYZ
The intersection area of the chromaticity diagram of chromatic colour lamp is as adjustable effective colour gamut；
In step S2, target color gamut space tristimulus values matrix [XYZ_target], knot are set in adjustable effective colour gamut
Close the original color gamut space tristimulus values matrix [XYZ_original] of the every lampion obtainedi, it is calculated each
The correction coefficient matrix [conversion_coefficient] of lampioniAnd it is stored in the colour correction of this lampion
In module.
Wherein, in step S12, the processing of formula (1) is carried out to be converted to the original optical color parameter of collected dot matrix
For original color gamut space tristimulus values matrix [XYZ_original]i, remember [XYZ_original]iFor
In addition, in step S2, the correction coefficient matrix [conversion_coefficient] of every lampioniCalculating
Mode is：Remember that [XYZ_target] is[conversion_coefficient]iFor
[conversion_coefficient]i*[XYZ_original]i=[XYZ_target] (2)；
Wherein correction coefficient matrix [conversion_coefficient]iIn：
RR is input source signal when being red, the brightness correction coefficients of red light；
RG is input source signal when being red, the brightness correction coefficients of green light；
RB is input source signal when being red, the brightness correction coefficients of blue lamp；
GR is input source signal when being green, the brightness correction coefficients of red light；
GG is input source signal when being green, the brightness correction coefficients of green light；
GB is input source signal when being green, the brightness correction coefficients of blue lamp；
BR is input source signal when being blue, the brightness correction coefficients of red light；
BG is input source signal when being blue, the brightness correction coefficients of green light；
BB is input source signal when being blue, the brightness correction coefficients of blue lamp.
Such as the correction coefficient matrix of certain lampion of calculating is
Wherein, color correction module includes master chip and correcting chip；In step S3, sends the sources DMX using console and believe
Number to master chip, master chip, to obtain each primary color channels data, 16 is converted to through dimming gamma table to source signal processing
[PWM_original]iValue, utilizes the correction coefficient matrix [conversion_coefficient] in correcting chipiAnd it combines
Formula (3) is to 16 [PWM_original]iValue is corrected, 16 [PWM_target] values of each primary colours after being corrected；
[PWM_target]=[conversion_coefficient]i*[PWM_original]i(3)；
16 [PWM_target] values of each primary colours are transmitted to master chip after correcting chip will correct, corresponding to control driving circuit acquisition
Different size of electric current makes the electric current drive light source luminescent.
Such as [PWM_original]iWhen=[R235, G60, B120], correction coefficient matrix is
When remembering that [PWM_target] is [R ', G ', B '], substituting into formula (3) can acquire：
R '=R*RR+G*GR+B*BR
=235*0.815562+60*0.011104+120*0.211122
=217.66
≈218
G '=R*RG+G*GG+B*BG
=235*0.111135+60*0.845431+120*0.012226
=78.31
≈78
B '=R*RB+G*GB+B*BB
=235*0.001227+60*0.242253+120*0.764322
=106.54
≈107
I.e. input source signal [R235, G60, B120], after correction in the pixel actual signal be [R218, G78,
B107], to realize photochromic standardization and consistency.
In addition, the lampion further includes the LED lamp bead of W colors, further include being set using optical color parameter acquisition in step S1
The original optical color parameter of dot matrix of the W colors of one lampion of standby acquisition, the original optical color parameter of dot matrix are CIE Yxy color moulds
Yxy values under type are denoted as WY_bright, (Wx, Wy)；Processing is carried out to WY_bright, (Wx, Wy) to obtain in CIE XYZ 1931
The position [W_one] of white point in standard colorimetric system；Take the intersection area of all lampion chromaticity diagrams in step S13 as original
Intersection color gamut space tristimulus values matrix [XYZ_intersection], folds the data in [XYZ_intersection]
Processing is added to obtain [W_rgbintecsetion], note [XYZ_intersection] is
Remember that [W_rgbintecsetion] is
[W_rgbintecsetion] is obtained by formula (4)；
By the processing to [W_one] and [W_rgbintecsetion], colour mixture correction matrix [mix_ is obtained
Coefficient], target color gamut space tristimulus values matrix [XYZ_target] is set in step S2 in adjustable effective colour gamut
It is corrected with colour mixture correction matrix [mix_coefficient] to obtain [XYZ_target_new] afterwards, in conjunction with having obtained
Every lampion original color gamut space tristimulus values matrix [XYZ_original]i, each lampion is calculated
Correction coefficient matrix [conversion_coefficient]i.It is empty can to obtain the target color gamut accurately set for setting in this way
Between tristimulus values matrix, improve it is photochromic standardization and consistency precision.
In the present embodiment, note [W_one] is[W_one] is calculated by formula (5)：
Colour mixture correction matrix [mix_coefficient] is calculated by formula (6)：
[mix_coefficient] * [W_rgbintecsetion]=[W_one] (6)；
Target color gamut space tristimulus values matrix [XYZ_target] of setting is modified by formula (7)：
[XYZ_target_new]=[mix_coefficient] * [XYZ_target] (7).
Wherein, the minimum value in the WY_bright values of all lampions is taken to substitute into formula (5) as WY_bright values
Middle calculating [W_one].The WY_bright values of lampion may be not different on the same stage, are minimized carry out operation, to prevent influencing color
Correct result.
In addition, taking the average value of the average value of the Wx of all lampions and the Wy of all lampions as Wx values and Wy
Value substitutes into formula (5) and calculates [W_one].When producing lampion, the position of the LED lamp bead of W colors may be slightly different, and be led to
It crosses opponent-color coordinates to be averaged, it is ensured that colour correction result.
Wherein, when lampion further includes the LED lamp bead of W colors, the correction coefficient of W colored lights pearls is set as 1.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (10)
1. a kind of lampion color correcting method, the lampion includes the LED lamp bead of multiple color, which is characterized in that every
It is respectively provided with color correction module in lampion, includes the following steps：
S1. data acquisition and processing, include the following steps：
S11. the original optical color parameter of dot matrix of a lampion a variety of colors is acquired respectively；
S12. handled and drawn the chromaticity that this lampion corresponds to original color gamut to the original optical color parameter of collected dot matrix
Figure, the range areas that the number of colors that wherein colour gamut can be expressed for certain table color pattern is constituted；
S13. step S11 to S12 is repeated, to obtain the chromaticity diagram that n platform lampions correspond to original color gamut, draws all lampions
The intersection area of chromaticity diagram is as adjustable effective colour gamut；
S2. the acquisition of the correction coefficient matrix of every lampion：Target color gamut is set in adjustable effective colour gamut, in conjunction with having obtained
Every lampion original color gamut, the correction coefficient matrix of each lampion is calculated and is stored in this colour
In the color correction module of lamp；
S3. source signal is sent to the color correction module of every lampion, color correction module is based on correction coefficient matrix to source
Signal is handled to obtain the signal after correcting, and light source luminescent is driven using the signal control drive circuit after correction.
2. a kind of lampion color correcting method according to claim 1, which is characterized in that the lampion includes RGB
The LED lamp bead of three kinds of colors,
In step S11, the original photochromic ginseng of RGB three primary colours dot matrix of a lampion is acquired respectively using optical color parameter collecting device
Number, the original optical color parameter of dot matrix be CIE Yxy color model under Yxy values, wherein Y be brightness value be denoted as RY_bright,
GY_bright, BY_bright, xy are that chromaticity coordinates is denoted as (Rx, Ry), (Gx, Gy), (Bx, By)；
In step S12, the original optical color parameter of collected dot matrix is handled to be converted into the thorn of original color gamut space three
Swash value matrix [XYZ_original]i, and draw in 1931 standard colorimetric systems of CIE XYZ this lampion correspond to it is original
The chromaticity diagram of colour gamut；
In step S13, step S11 to S12 is repeated, to obtain the original color gamut space tristimulus values matrix [XYZ_ of n platform lampions
original]i, i 1 ... n, and corresponding chromaticity diagram is drawn, draw all coloured silks in 1931 standard colorimetric systems of CIE XYZ
The intersection area of the chromaticity diagram of colored lights is as adjustable effective colour gamut；
In step S2, target color gamut space tristimulus values matrix [XYZ_target] is set in adjustable effective colour gamut, in conjunction with
The original color gamut space tristimulus values matrix [XYZ_original] of the every lampion obtainedi, each colour is calculated
The correction coefficient matrix [conversion_coefficient] of lampiAnd it is stored in the color correction module of this lampion
It is interior.
3. a kind of lampion color correcting method according to claim 2, which is characterized in that in step S12, to collecting
The original optical color parameter of dot matrix carry out the processing of formula (1) to be converted into original color gamut space tristimulus values matrix [XYZ_
original]i, remember [XYZ_original]iFor
4. a kind of lampion color correcting method according to claim 2, which is characterized in that in step S2, every colour
The correction coefficient matrix [conversion_coefficient] of lampiCalculation be：Remember that [XYZ_target] is[conversion_coefficient]iFor
[conversion_coefficient]i*[XYZ_original]i=[XYZ_target] (2)；
Wherein correction coefficient matrix [conversion_coefficient]iIn：
RR is input source signal when being red, the brightness correction coefficients of red light；
RG is input source signal when being red, the brightness correction coefficients of green light；
RB is input source signal when being red, the brightness correction coefficients of blue lamp；
GR is input source signal when being green, the brightness correction coefficients of red light；
GG is input source signal when being green, the brightness correction coefficients of green light；
GB is input source signal when being green, the brightness correction coefficients of blue lamp；
BR is input source signal when being blue, the brightness correction coefficients of red light；
BG is input source signal when being blue, the brightness correction coefficients of green light；
BB is input source signal when being blue, the brightness correction coefficients of blue lamp.
5. a kind of lampion color correcting method according to claim 2, which is characterized in that color correction module includes master
Chip and correcting chip；In step S3, master chip handles to obtain each primary color channels data source signal, bent through dimming gamma
Line table is converted to 16 [PWM_original]iValue, utilizes the correction coefficient matrix [conversion_ in correcting chip
coefficient]iAnd combine formula (3) to 16 [PWM_original]iValue is corrected, each primary colours 16 after being corrected
[PWM_target] value；
[PWM_target]=[conversion_coefficient]i*[PWM_original]i(3)；
16 [PWM_target] values of each primary colours are transmitted to master chip after correcting chip will correct, to control driving circuit acquisition pair
The different size of electric current answered makes the electric current drive light source luminescent.
6. a kind of lampion color correcting method according to claim 3, which is characterized in that the lampion further includes W
The LED lamp bead of color further includes the dot matrix for the W colors that each lampion is acquired using optical color parameter collecting device in step S1
Original optical color parameter, the original optical color parameter of dot matrix be CIEYxy color model under Yxy values, be denoted as WY_bright, (Wx,
Wy)；Position [the W_ that processing obtains the white point in 1931 standard colorimetric systems of CIE XYZ is carried out to WY_bright, (Wx, Wy)
one]；Take the intersection area of all lampion chromaticity diagrams in step S13 as original intersection color gamut space tristimulus values matrix
[XYZ_intersection] is overlapped processing to the data in [XYZ_intersection] and obtains [W_
Rgbintecsetion], note [XYZ_intersection] is
Remember that [W_rgbintecsetion] is
[W_rgbintecsetion] is obtained by formula (4)；
By the processing to [W_one] and [W_rgbintecsetion], colour mixture correction matrix [mix_ is obtained
Coefficient], target color gamut space tristimulus values matrix [XYZ_target] is set in step S2 in adjustable effective colour gamut
It is corrected with colour mixture correction matrix [mix_coefficient] to obtain [XYZ_target_new] afterwards, in conjunction with having obtained
Every lampion original color gamut space tristimulus values matrix [XYZ_original]i, each lampion is calculated
Correction coefficient matrix [conversion_coefficient]i。
7. a kind of lampion color correcting method according to claim 6, which is characterized in that remember that [W_one] is[W_one] is calculated by formula (5)：
Colour mixture correction matrix [mix_coefficient] is calculated by formula (6)：
[mix_coefficient] * [W_rgbintecsetion]=[W_one] (6)；
Target color gamut space tristimulus values matrix [XYZ_target] of setting is modified by formula (7)：
[XYZ_target_new]=[mix_coefficient] * [XYZ_target] (7).
8. a kind of lampion color correcting method according to claim 7, which is characterized in that take all lampions
Minimum value in WY_bright values, which is substituted into as WY_bright values in formula (5), calculates [W_one].
9. a kind of lampion color correcting method according to claim 8, which is characterized in that take the Wx of all lampions
Average value and the average value of Wy of all lampions substituted into formula (5) as Wx values and Wy values and calculate [W_one].
10. a kind of lampion color correcting method according to claim 6, which is characterized in that lampion further includes W colors
LED lamp bead when, the correction coefficient of W colored lights pearls is set as 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608418.9A CN108668411B (en) | 2018-06-13 | 2018-06-13 | Color correction method for color lamp |
| PCT/CN2019/075204 WO2019237757A1 (en) | 2018-06-13 | 2019-02-15 | Color correction method for multi-color lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608418.9A CN108668411B (en) | 2018-06-13 | 2018-06-13 | Color correction method for color lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108668411A true CN108668411A (en) | 2018-10-16 |
| CN108668411B CN108668411B (en) | 2019-12-20 |
Family
ID=63775700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810608418.9A Active CN108668411B (en) | 2018-06-13 | 2018-06-13 | Color correction method for color lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108668411B (en) |
| WO (1) | WO2019237757A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673082A (en) * | 2018-12-26 | 2019-04-23 | 中国科学技术大学 | Spectrum, color and color temperature control method of LED lighting system |
| CN110557865A (en) * | 2019-09-06 | 2019-12-10 | 江西嘉捷鑫源科技有限公司 | Batch color correction system and method for intelligent color LED bulbs |
| CN110570811A (en) * | 2019-09-11 | 2019-12-13 | 宋清海 | LED color gamut correction method |
| CN110677954A (en) * | 2019-10-22 | 2020-01-10 | 滨州学院 | Precise dimming method and system for super three-color LED light source |
| CN110677955A (en) * | 2019-10-22 | 2020-01-10 | 滨州学院 | A method and system for determining maximum brightness of RGB LED light source matching target chromaticity |
| CN112071257A (en) * | 2020-07-31 | 2020-12-11 | 佛山市青松科技股份有限公司 | LED screen correction method and device, storage medium and LED screen |
| CN114760741A (en) * | 2022-04-19 | 2022-07-15 | 北京小米移动软件有限公司 | RGB lamp correction method and device, electronic equipment, storage medium and chip |
| CN117147103A (en) * | 2023-07-31 | 2023-12-01 | 上海光色智能科技有限公司 | Calibration method, device, equipment and medium for LED assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340101B (en) * | 2021-12-31 | 2025-01-24 | 上海科世达-华阳汽车电器有限公司 | A method, device, medium and equipment for calibrating parameters of atmosphere lamp |
| CN114828337B (en) * | 2022-07-01 | 2022-09-27 | 杭州罗莱迪思科技股份有限公司 | Outdoor LED Dyeing Light Control Method and Its Application |
| CN115164164B (en) * | 2022-08-04 | 2024-08-09 | 广州市雅江光电设备有限公司 | Light mixing method and device for color panel light and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074206A (en) * | 2009-11-20 | 2011-05-25 | 京东方科技集团股份有限公司 | Color correction method, color correction device and LED color correction system |
| CN102542988A (en) * | 2011-12-29 | 2012-07-04 | 中国科学院长春光学精密机械与物理研究所 | Device and method for previewing light-emitting diode (LED) display screen revising effect |
| CN104795021A (en) * | 2015-03-26 | 2015-07-22 | 繁昌县江林广告设计制作有限公司 | A method for self-adjustment of LED display color |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007310008A (en) * | 2006-05-16 | 2007-11-29 | Sharp Corp | Display device using led |
| CN103108469B (en) * | 2013-01-31 | 2015-02-18 | 北京半导体照明科技促进中心 | Method and device for controlling output light of illuminating device and illuminating system |
| CN108024410B (en) * | 2016-11-02 | 2020-06-02 | 新谱光科技股份有限公司 | Calibration method of full-color LED lighting fixtures |
| CN107945730A (en) * | 2017-11-22 | 2018-04-20 | 田国辉 | A kind of control method of the LED standard screen based on two-level current |
-
2018
- 2018-06-13 CN CN201810608418.9A patent/CN108668411B/en active Active
-
2019
- 2019-02-15 WO PCT/CN2019/075204 patent/WO2019237757A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074206A (en) * | 2009-11-20 | 2011-05-25 | 京东方科技集团股份有限公司 | Color correction method, color correction device and LED color correction system |
| CN102542988A (en) * | 2011-12-29 | 2012-07-04 | 中国科学院长春光学精密机械与物理研究所 | Device and method for previewing light-emitting diode (LED) display screen revising effect |
| CN104795021A (en) * | 2015-03-26 | 2015-07-22 | 繁昌县江林广告设计制作有限公司 | A method for self-adjustment of LED display color |
Non-Patent Citations (1)
| Title |
|---|
| 韦丽花: "LED舞台照明灯嵌入式控制系统优化设计", 《广东工业大学学报》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673082A (en) * | 2018-12-26 | 2019-04-23 | 中国科学技术大学 | Spectrum, color and color temperature control method of LED lighting system |
| CN110557865A (en) * | 2019-09-06 | 2019-12-10 | 江西嘉捷鑫源科技有限公司 | Batch color correction system and method for intelligent color LED bulbs |
| CN110570811A (en) * | 2019-09-11 | 2019-12-13 | 宋清海 | LED color gamut correction method |
| CN110677954A (en) * | 2019-10-22 | 2020-01-10 | 滨州学院 | Precise dimming method and system for super three-color LED light source |
| CN110677955A (en) * | 2019-10-22 | 2020-01-10 | 滨州学院 | A method and system for determining maximum brightness of RGB LED light source matching target chromaticity |
| CN110677954B (en) * | 2019-10-22 | 2021-04-02 | 滨州学院 | Precise dimming method and system for super three-color LED light source |
| CN112071257A (en) * | 2020-07-31 | 2020-12-11 | 佛山市青松科技股份有限公司 | LED screen correction method and device, storage medium and LED screen |
| CN114760741A (en) * | 2022-04-19 | 2022-07-15 | 北京小米移动软件有限公司 | RGB lamp correction method and device, electronic equipment, storage medium and chip |
| CN117147103A (en) * | 2023-07-31 | 2023-12-01 | 上海光色智能科技有限公司 | Calibration method, device, equipment and medium for LED assembly |
| CN117147103B (en) * | 2023-07-31 | 2024-10-22 | 上海光色智能科技有限公司 | Calibration method, device, equipment and medium for LED assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019237757A1 (en) | 2019-12-19 |
| CN108668411B (en) | 2019-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108668411A (en) | A kind of lampion color correcting method | |
| CN103489402B (en) | The adjustment method of mosaic display screen and system | |
| CN106132002B (en) | Control LED light color color-mixture device and its method | |
| CN106817811A (en) | Based on the method that PWM four primaries LED realizes full gamut scope luminous intensity distribution | |
| CN109496035B (en) | Color matching method, color matching method and system for automatically realizing maximum brightness of colored lamp | |
| CN110677955B (en) | A method and system for determining maximum brightness of RGB LED light source matching target chromaticity | |
| CN109005622B (en) | A kind of color LED lamps and lanterns gray scale correction and linear color mixing method | |
| WO2002090909A3 (en) | System for measuring chromaticity coordinates | |
| CN110570811A (en) | LED color gamut correction method | |
| CN106535406B (en) | The brightness correcting method of three primary colors LED light source | |
| CN103366680A (en) | Led display screen white balance correction technology | |
| CN102097083A (en) | Method for regulating color consistency of multi-display screen | |
| CA2456784A1 (en) | Circuit arrangement and method for an illumination device having settable color and brightness | |
| CN103236251B (en) | Method and device for calibrating uniformity of splicing wall | |
| CN109192132B (en) | Brightness and chrominance compensation method for white field displayed by LED display screen | |
| CN114340080B (en) | RGB-LED light source mixing method, system and device | |
| CN109005617A (en) | A kind of non-pole light regulating method and apparatus based on vehicle-mounted RGB controller | |
| CN105825832A (en) | Method for adjusting screen color shift and electronic device | |
| US8890904B2 (en) | White balance adjusting method | |
| CN105070269B (en) | The color display and system of a kind of mobile terminal | |
| CN103761955A (en) | Perceptual color matching method between two different multicolor displays | |
| CN107864369B (en) | The compound display acquisition method of LED display | |
| CN100501953C (en) | Color matching method of light-emitting diodes | |
| CN107945730A (en) | A kind of control method of the LED standard screen based on two-level current | |
| CN111988616A (en) | Method for coding and decoding light source color in color space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |