CN108668122A - Color rendition method and equipment for spectral response curve - Google Patents
Color rendition method and equipment for spectral response curve Download PDFInfo
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- CN108668122A CN108668122A CN201710211377.5A CN201710211377A CN108668122A CN 108668122 A CN108668122 A CN 108668122A CN 201710211377 A CN201710211377 A CN 201710211377A CN 108668122 A CN108668122 A CN 108668122A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
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- Color Television Image Signal Generators (AREA)
Abstract
The present invention provides a kind of color rendition methods and equipment for spectral response curve, the present invention is by using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, it obtains camera and shoots data of the emulation data of mark version data simulation test environment as entire camera photosensitive system under the light source, the data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate color correction matrix, the color correction matrix is corrected by approximatioss, simulation efficiency can be improved, it improves measuring accuracy and improves producing line yield, reduce module loss, improve terminal phone effect, avoid the effect caused by material deficient purchase bad.
Description
Technical field
The present invention relates to a kind of color rendition methods and equipment for spectral response curve.
Background technology
Color rendition is the most important component part of handset image effect emulation.
It is many that color rendition method is calculated on the market, but is mostly the computational methods based on image real scene shooting.Image real scene shooting
Disadvantage be：
1. being easy by extraneous shooting environmental, the influence of manual operation error；
2. needing to adjust environment real scene shooting picture, operate relatively time-consuming.
Important component of the mobile phone camera as smart mobile phone, the quality of image effect be very important because
Element.But often in such a situation that, a camera can not all see reality very simple and clearly from design, supplied materials, production
Border image effect can only wait until that project middle and later periods, camera practical application can just see complete effect later on mobile phone.In this way
Development status, drawback is：
1) it applies on mobile phone and just pinpoints the problems, be confined to the time of project development and mating unclassified stores, only
It can be by repairing a die, the method optimizing effect of parameter optimization or receiving of compromising.It is limited to optimize space, also there are many limitations.
2) when material early period type selecting, the degree of agreeing with of material itself, the advantage and disadvantage after collocation can not be specified.
For example in practical application, the big well-known cellular telephone companies in China's Mainland two, 5Meg preceding cameras will be sent out in mobile phone
Shortly before cloth, find the red abnormal veiling glare of large area occur in dark-state.Confirmed investigation belongs to sensitive chip material supplied materials
It is abnormal, but material supplier changes the period very long, anxious listing of having no alternative, can only by reducing the gorgeous degree of mobile phone color,
Part mobile phone effect is sacrificed to optimize the problem.Although the final also correcting material of supplier, can not be applied in time
In the project.
Invention content
The purpose of the present invention is to provide a kind of color rendition methods and equipment for spectral response curve, can solve
The problem of existing color rendition method simulation efficiency is low, measuring accuracy.
To solve the above problems, the present invention provides a kind of color rendition method for spectral response curve, including：
It is combined into and entirely takes the photograph using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
As head photosensitive system obtains camera and shoot mark under the light source by the way that light source and mark version data simulation test environment is added
Data of the emulation data of version data simulation test environment as entire camera photosensitive system；
The data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate color
Correction matrix；
The color correction matrix is corrected by approximatioss.
Further, in the above-mentioned methods, the data of the entire camera photosensitive system are fitted to CIE1937 standards
Colour matching curve calculates color correction matrix, including：
CCM matrixes are obtained by solving following linear equation
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ',
G ', B ' are respectively that sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are entire camera
Red, green and blue channel value in the data of photosensitive system, a11a12.....a33 is color correction matrix.
Further, in the above-mentioned methods, the data of the entire camera photosensitive system are fitted to CIE1937 standards
Colour matching curve calculates color correction matrix, including：
White balance is loaded to the data of the entire camera photosensitive system；
The data of entire camera photosensitive system after the white balance are fitted to CIE1937 reference colour match curves,
Calculate color correction matrix.
Further, in the above-mentioned methods, camera photosensitive system, by the way that light source and mark version data simulation test wrapper is added
Border, obtain camera shot under the light source mark version data simulation test environment emulation data it is photosensitive as entire camera
The data of system, including：
It is combined into and entirely takes the photograph using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
As head photosensitive system；
To the entire camera photosensitive system load light source and 24 colour atla reflectivity of Macbeth, emulation camera is at this
Data of the data of 24 colour atla reflectivity scenes of Macbeth as entire camera photosensitive system are shot under light source.
Further, in the above-mentioned methods, the color correction matrix is corrected by approximatioss, including：
To color correction matrix load in the translation operation of color space, L*a*b* spatial datas are obtained, calculate L*
The difference of the space criteria data of a*b* spatial datas and 24 colour atlas of the Macbeth according to the mathematic interpolation DeltaE and
Sat, judges whether the DeltaE and Sat meets predetermined threshold value, if it is not, correcting the color correction matrix according to the difference
After repeat this step, if so, using current color correction matrix as final color correction matrix.
Further, in the above-mentioned methods, the predetermined threshold value is Sat.=100, DeltaE<2.5.
Further, in the above-mentioned methods, the generation formula of the Sat and DeltaE is as follows：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The respectively described Macbeth24 colour atlas
Space criteria data, L, L*Represent brightness, a, b, a*、b*Represent color.
Another side according to the present invention provides a kind of color rendition equipment for spectral response curve, including：
Initial data acquisition device, for using sensitive chip spectral response data, lens transmission efficiency data and colour filter
Transmitance data are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, are taken the photograph
As head shoots number of the emulation data of mark version data simulation test environment as entire camera photosensitive system under the light source
According to；
It is fitted device, it is bent for the data of the entire camera photosensitive system to be fitted to the colour matching of CIE1937 standards
Line calculates color correction matrix；
Correcting device, for correcting the color correction matrix by approximatioss.
Further, in above equipment, the fitting device obtains CCM matrixes for passing through the following linear equation of solution
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ',
G ', B ' are respectively that sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are entire camera
Red, green and blue channel value in the data of photosensitive system, a11a12.....a33 is color correction matrix.
Further, in above equipment, the fitting device, for the data to the entire camera photosensitive system
Load white balance；It is bent that the data of entire camera photosensitive system after the white balance are fitted to the colour matching of CIE1937 standards
Line calculates color correction matrix.
Further, in above equipment, the initial data acquisition device, for using sensitive chip spectral response number
It is combined into entire camera photosensitive system according to, lens transmission efficiency data and colour filter transmitance data；To the entire camera
Photosensitive system loads light source and 24 colour atla reflectivity of Macbeth, and emulation camera shoots 24 colour atlas of Macbeth under this light source
Data of the data of reflectivity scene as entire camera photosensitive system.
Further, in above equipment, the correcting device, for empty in color to color correction matrix load
Between translation operation, obtain L*a*b* spatial datas, calculate the space of L*a*b* spatial datas and 24 colour atlas of the Macbeth
The difference of normal data judges whether the DeltaE and Sat meets default threshold according to the mathematic interpolation DeltaE and Sat
Value, if it is not, according to the correcting device that reruns after the difference amendment color correction matrix, if so, by current
Color correction matrix as final color correction matrix.
Further, in above equipment, the predetermined threshold value is Sat.=100, DeltaE<2.5.
Further, in above equipment, the calculation formula of the Sat and DeltaE are as follows：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The respectively described Macbeth24 colour atlas
Space criteria data, L, L*Represent brightness, a, b, a*、b*Represent color.
The application also provides one or more machine readable medias, is stored thereon with instruction, is handled when by one or more
When device executes so that terminal device executes above-mentioned method.
Compared with prior art, the present invention is by using sensitive chip spectral response data, lens transmission efficiency data and filter
Color chips transmitance data are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, obtain
The emulation data of mark version data simulation test environment are shot as entire camera photosensitive system under the light source to camera
Data, the data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate color school
Positive matrices corrects the color correction matrix by approximatioss, and the application can improve simulation efficiency, improves measuring accuracy and carries
High producing line yield reduces module loss, improves terminal phone effect, avoid the effect caused by material deficient purchase bad.
Description of the drawings
Fig. 1 is the sensitive chip spectral response datagram of one embodiment of the invention；
Fig. 2 is the colour filter transmitance datagram of one embodiment of the invention；
Fig. 3 is the lens transmission efficiency datagram of one embodiment of the invention；
Fig. 4 is the datagram of the entire camera photosensitive system after the combination of one embodiment of the invention；
Fig. 5 is the CIE1937 reference colour match curve figures of one embodiment of the invention；
Fig. 6 is the schematic diagram of one embodiment of the invention；
Fig. 7 is the space criteria datagram of 24 colour atlas of Macbeth of one embodiment of the invention.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
The present invention provides a kind of color rendition method for spectral response curve, including：
Step S1 is combined using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
For entire camera photosensitive system, camera is obtained under the light source by the way that light source and mark version data simulation test environment is added
Data of the emulation data of shooting mark version data simulation test environment as entire camera photosensitive system；Specifically, camera
Module is one by sensitive chip, colour filter, the photosensitive system of the devices such as camera lens composition, in the scope of color science, chip,
Colour filter, camera lens may be expressed as the corresponding data in visible-range, and the combination of this three's corresponding data is entirely taken the photograph
As the data of the photosensitive system of head mould group；For sensitive chip spectral response data as shown in Figure 1, in Fig. 1, IMX105ESB is blue
Channel data, IMX105ESR be red channel data, IMX105ESGb be proximate to the blue channel green channel data,
IMX105ESGr is proximate to the green channel data of the red channel, and colour filter transmitance data are as shown in Fig. 2, camera lens penetrates
Rate data are as shown in figure 3, sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data triplicity
The data of entire camera photosensitive system afterwards are as shown in figure 4, in Fig. 4, and B ' is the blue channel data after combining, and R ' is to combine
Red channel data, Gb ' afterwards be in conjunction with after close to the green channel data of the blue channel, Gr ' be leaning on after combining
The green channel data of the nearly red channel,
The data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves by step S2, are calculated
Go out color correction matrix (CCM)；Specifically, CIE1937 reference colours match curve as shown in figure 5, the curve be forefathers be based on it is more
The color state that people's naked eyes repeatedly test the most comfortable seen repeatedly sums up the color response curve come, has been used as in industry
General standard, in Fig. 5,It is CIE1937 reference colour match curve blue channel values,It is CIE1937 reference colour match curves
Green channel value,It is CIE1937 reference colour match curve red color channel values；
Step S3 corrects the color correction matrix by approximatioss.Specifically, so-called CCM (Color
Correction Matrix) color correction matrix, i.e., original color is become into normal human eye by software algorithm correction and perceived
Comfortable color, it is the very important step of image debugging process to calculate color correction matrix (CCM).The application can be with
Simulation efficiency is improved, measuring accuracy is improved and improves producing line yield, module loss is reduced, improves terminal phone effect, avoid because of object
Effect is bad caused by expecting deficient purchase.
In one embodiment of color rendition method for spectral response curve of the application, step S2 entirely takes the photograph described
As the data of head photosensitive system are fitted to CIE1937 reference colour match curves, color correction matrix (CCM) is calculated, including：
CCM matrixes are obtained by solving following linear equation
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ',
G ', B ' are respectively that sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are entire camera
Red, green and blue channel value in the data of photosensitive system, a11a12.....a33 are color correction matrix (CCM).
Wherein, G ' according in Fig. 4 Gb ' and Gr ' obtain.
As shown in fig. 6, in one embodiment of color rendition method for spectral response curve of the application, step S1 is adopted
It is combined into the photosensitive system of entire camera with sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
System obtains camera and shoots mark version data simulation under the light source by the way that light source and mark version data simulation test environment is added
Data of the emulation data of test environment as entire camera photosensitive system, including：
It is combined into and entirely takes the photograph using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
As head photosensitive system；
To the entire camera photosensitive system load light source and 24 colour atla reflectivity of Macbeth, (mark version data simulation is surveyed
Test ring border), emulation camera shoots the data of 24 colour atla reflectivity scenes of Macbeth as entire camera under this light source
The data of photosensitive system.
In one embodiment of color rendition method for spectral response curve of the application, as shown in fig. 6, step S2, it will
The data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate color correction matrix
(CCM), including：
To the data load white balance (WB) of the entire camera photosensitive system；
The data of entire camera photosensitive system after the white balance are fitted to CIE1937 reference colour match curves,
Calculate color correction matrix (CCM).
In one embodiment of color rendition method for spectral response curve of the application, as shown in fig. 6, step S3, leads to
Approximatioss is crossed to correct the color correction matrix, including：
To color correction matrix load in the translation operation of color space, L*a*b* spatial datas are obtained, calculate L*
The difference (Diff values) of the space criteria data of a*b* spatial datas and 24 colour atlas of the Macbeth is according to the mathematic interpolation
DeltaE and Sat, judges whether the DeltaE and Sat meets predetermined threshold value, if it is not, correcting the color according to the difference
This step is repeated after correction matrix, if so, using current color correction matrix as final color correction matrix.
The space criteria data (Reference Target L*a*b*) of 24 colour atlas of Macbeth are as shown in Figure 7.Here, such as Fig. 6 institutes
Show, in the translation operation of color space includes by color correction matrix from srgc color gamut spaces to color correction matrix load
XYZ color gamut spaces are transformed into, then XYZ color gamut spaces are transformed into the spaces L*a*b*.
In one embodiment of color rendition method for spectral response curve of the application, the predetermined threshold value is Sat.=
100,DeltaE<2.5。
In one embodiment of color rendition method for spectral response curve of the application, the life of the Sat and DeltaE
It is as follows at formula：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The respectively described Macbeth24 colour atlas
Space criteria data, L, L*Represent brightness, a, b, a*、b*Represent color.
According to the another side of the application, a kind of color rendition equipment for spectral response curve is also provided, including：
Initial data acquisition device, for using sensitive chip spectral response data, lens transmission efficiency data and colour filter
Transmitance data are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, are taken the photograph
As head shoots number of the emulation data of mark version data simulation test environment as entire camera photosensitive system under the light source
According to；Specifically, camera module is one by sensitive chip, and colour filter, the photosensitive system of the devices such as camera lens composition, in color section
In scope, chip, colour filter, camera lens may be expressed as the corresponding data in visible-range, and this three's respective counts
According to combination, that is, entire camera module photosensitive system data；Sensitive chip spectral response data as shown in Figure 1, in Fig. 1,
IMX105ESB is that blue channel data, IMX105ESR are that red channel data, IMX105ESGb are proximate to the blue channel
Green channel data, IMX105ESGr be proximate to the green channel data of the red channel, colour filter transmitance data are such as
Shown in Fig. 2, lens transmission efficiency data are as shown in figure 3, sensitive chip spectral response data, lens transmission efficiency data and colour filter are saturating
The data of the entire camera photosensitive system after rate data triplicity are crossed as shown in figure 4, in Fig. 4, B ' is the blue after combining
Channel data, R ' are the green channel number for the close blue channel that red channel data, the Gb ' after combining are in conjunction with after
It is the green channel data close to the red channel in conjunction with after according to, Gr ',
It is fitted device, it is bent for the data of the entire camera photosensitive system to be fitted to the colour matching of CIE1937 standards
Line calculates color correction matrix；Specifically, CIE1937 reference colours match curve is as shown in figure 5, the curve is based on for forefathers
The color state that more people's naked eyes repeatedly test the most comfortable seen repeatedly sums up the color response curve come, has been used as industry
Interior general standard, in Fig. 5,It is CIE1937 reference colour match curve blue channel values,It is that the colour matching of CIE1937 standards is bent
Line green channel value,It is CIE1937 reference colour match curve red color channel values；
Correcting device, for correcting the color correction matrix by approximatioss.Specifically, so-called CCM (Color
Correction Matrix) color correction matrix, i.e., original color is become into normal human eye by software algorithm correction and perceived
Comfortable color, it is the very important step of image debugging process to calculate color correction matrix (CCM).The application can be with
Simulation efficiency is improved, measuring accuracy is improved and improves producing line yield, module loss is reduced, improves terminal phone effect, avoid because of object
Effect is bad caused by expecting deficient purchase.
In the color rendition equipment for spectral response curve of one embodiment of the application, the fitting device, for leading to
It crosses and solves following linear equation and obtain CCM matrixes
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ',
G ', B ' are respectively that sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are entire camera
Red, green and blue channel value in the data of photosensitive system, a11a12.....a33 is color correction matrix.Wherein,
G ' according in Fig. 4 Gb ' and Gr ' obtain.
In the color rendition equipment for spectral response curve of one embodiment of the application, the fitting device, for pair
The data of the entire camera photosensitive system load white balance；By the number of the entire camera photosensitive system after the white balance
According to CIE1937 reference colour match curves are fitted to, color correction matrix is calculated.
In the color rendition equipment for spectral response curve of one embodiment of the application, the initial data obtains dress
It sets, for being combined into and entirely taking the photograph using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
As head photosensitive system；To the entire camera photosensitive system load light source and 24 colour atla reflectivity of Macbeth, emulation camera shooting
Head shoots the data of 24 colour atla reflectivity scenes of Macbeth (mark version data simulation test environment) as entire under this light source
The data of camera photosensitive system.
In the color rendition equipment for spectral response curve of one embodiment of the application, the correcting device, for pair
The color correction matrix load obtains L*a*b* spatial datas in the translation operation of color space, calculates the spaces L*a*b* number
According to the difference of the space criteria data with 24 colour atlas of the Macbeth according to the mathematic interpolation DeltaE and Sat, institute is judged
State whether DeltaE and Sat meets predetermined threshold value, if it is not, reruning after correcting the color correction matrix according to the difference
The correcting device, if so, using current color correction matrix as final color correction matrix.24 colour atlas of Macbeth
Space criteria data (Reference Target L*a*b*) it is as shown in Figure 7.Here, as shown in fig. 6, to the color school
Positive matrices load includes that color correction matrix is transformed into XYZ colour gamut skies from srgc color gamut spaces in the translation operation of color space
Between, then XYZ color gamut spaces are transformed into the spaces L*a*b*.
In the color rendition equipment for spectral response curve of one embodiment of the application, the predetermined threshold value is Sat.=
100,DeltaE<2.5。
In the color rendition equipment for spectral response curve of one embodiment of the application, the meter of the Sat and DeltaE
It is as follows to calculate formula：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The respectively described Macbeth24 colour atlas
Space criteria data, L, L*Represent brightness, a, b, a*、b*Represent color.
According to the another side of the application, one or more machine readable medias are also provided, instruction are stored thereon with, when by one
When a or multiple processors execute so that terminal device executes such as the above-mentioned color rendition method for spectral response curve.
In conclusion the present invention is saturating by using sensitive chip spectral response data, lens transmission efficiency data and colour filter
The rate data of mistake are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, are imaged
Data of the emulation data of head shooting mark version data simulation test environment under the light source as entire camera photosensitive system,
The data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate color correction matrix,
The color correction matrix is corrected by approximatioss, the application can improve simulation efficiency, improve measuring accuracy and improve producing line
Yield reduces module loss, improves terminal phone effect, avoid the effect caused by material deficient purchase bad.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the present invention is also intended to including these modification and variations.
Claims (15)
1. a kind of color rendition method for spectral response curve, which is characterized in that including：
It is combined into entire camera using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
Photosensitive system obtains camera and shoots mark version number under the light source by the way that light source and mark version data simulation test environment is added
Data according to the emulation data of Simulation Test Environment as entire camera photosensitive system；
The data of the entire camera photosensitive system are fitted to CIE1937 reference colour match curves, calculate colour correction
Matrix；
The color correction matrix is corrected by approximatioss.
2. being used for the color rendition method of spectral response curve as described in claim 1, which is characterized in that entirely taken the photograph described
As the data of head photosensitive system are fitted to CIE1937 reference colour match curves, color correction matrix is calculated, including：
CCM matrixes are obtained by solving following linear equation
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ', G ', B '
Respectively sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are the photosensitive system of entire camera
Red, green and blue channel value in the data of system, a11a12 ... ..a33 are color correction matrix.
3. being used for the color rendition method of spectral response curve as described in claim 1, which is characterized in that entirely taken the photograph described
As the data of head photosensitive system are fitted to CIE1937 reference colour match curves, color correction matrix is calculated, including：
White balance is loaded to the data of the entire camera photosensitive system；
The data of entire camera photosensitive system after the white balance are fitted to CIE1937 reference colour match curves, are calculated
Go out color correction matrix.
4. being used for the color rendition method of spectral response curve as described in claim 1, which is characterized in that use sensitive chip
Spectral response data, lens transmission efficiency data and colour filter transmitance data are combined into entire camera photosensitive system, by adding
Enter light source and mark version data simulation test environment, obtains camera and shoot mark version data simulation test environment under the light source
Data of the data as entire camera photosensitive system are emulated, including：
It is combined into entire camera using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
Photosensitive system；
To the entire camera photosensitive system load light source and 24 colour atla reflectivity of Macbeth, emulation camera is in the light source
Data of the data of lower shooting 24 colour atla reflectivity scenes of Macbeth as entire camera photosensitive system.
5. as claimed in claim 4 be used for spectral response curve color rendition method, which is characterized in that by approximatioss come
The color correction matrix is corrected, including：
To color correction matrix load in the translation operation of color space, L*a*b* spatial datas are obtained, calculate L*a*b*
The difference of the space criteria data of spatial data and 24 colour atlas of the Macbeth according to the mathematic interpolation DeltaE and Sat,
Judge whether the DeltaE and Sat meets predetermined threshold value, if it is not, according to weight after the difference amendment color correction matrix
Duplicate step, if so, using current color correction matrix as final color correction matrix.
6. being used for the color rendition method of spectral response curve as claimed in claim 5, which is characterized in that the predetermined threshold value
For Sat.=100, DeltaE<2.5.
7. as claimed in claim 5 be used for spectral response curve color rendition method, which is characterized in that the Sat and
The generation formula of DeltaE is as follows：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The sky of respectively described 24 colour atlas of Macbeth
Between normal data, L, L*Represent brightness, a, b, a*、b*Represent color.
8. a kind of color rendition equipment for spectral response curve, which is characterized in that including：
Initial data acquisition device, for being penetrated using sensitive chip spectral response data, lens transmission efficiency data and colour filter
Rate data are combined into entire camera photosensitive system, by the way that light source and mark version data simulation test environment is added, obtain camera
Data of the emulation data of shooting mark version data simulation test environment as entire camera photosensitive system under the light source；
It is fitted device, for the data of the entire camera photosensitive system to be fitted to CIE1937 reference colour match curves, is counted
Calculate color correction matrix；
Correcting device, for correcting the color correction matrix by approximatioss.
9. being used for the color rendition equipment of spectral response curve as claimed in claim 8, which is characterized in that the fitting dress
It sets, CCM matrixes is obtained for passing through the following linear equation of solution
Wherein,The respectively red of CIE1937 reference colours match curve, green and blue channel value, R ', G ', B '
Respectively sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data are the photosensitive system of entire camera
Red, green and blue channel value in the data of system, a11a12 ... ..a33 are color correction matrix.
10. being used for the color rendition equipment of spectral response curve as claimed in claim 8, which is characterized in that the fitting dress
It sets, white balance is loaded for the data to the entire camera photosensitive system；By the entire camera sense after the white balance
The data of photosystem are fitted to CIE1937 reference colour match curves, calculate color correction matrix.
11. being used for the color rendition equipment of spectral response curve as claimed in claim 8, which is characterized in that the original number
According to acquisition device, for being combined using sensitive chip spectral response data, lens transmission efficiency data and colour filter transmitance data
For entire camera photosensitive system；Light source and 24 colour atla reflectivity of Macbeth are loaded to the entire camera photosensitive system,
Emulation camera shoots the data of 24 colour atla reflectivity scenes of Macbeth as entire camera photosensitive system under this light source
Data.
12. being used for the color rendition equipment of spectral response curve as claimed in claim 11, which is characterized in that the amendment dress
It sets, for, in the translation operation of color space, obtaining L*a*b* spatial datas to color correction matrix load, calculating L*a*
The difference of the space criteria data of b* spatial datas and 24 colour atlas of the Macbeth according to the mathematic interpolation DeltaE and
Sat, judges whether the DeltaE and Sat meets predetermined threshold value, if it is not, correcting the color correction matrix according to the difference
After rerun the correcting device, if so, using current color correction matrix as final color correction matrix.
13. being used for the color rendition equipment of spectral response curve as claimed in claim 12, which is characterized in that the default threshold
Value is Sat.=100, DeltaE<2.5.
14. as claimed in claim 12 be used for spectral response curve color rendition equipment, which is characterized in that the Sat and
The calculation formula of DeltaE is as follows：
Sat=(sqrt (a2+b2))/(sqrt(a*2+b*2))
DeltaE=sqrt ((L-L*)2+(a-a*)2+(b-b*)2)
Wherein, a, b and L are respectively the L*a*b* spatial datas, a*、b*And L*The space of the respectively described Macbeth24 colour atlas
Normal data, L, L*Represent brightness, a, b, a*、b*Represent color.
15. one or more machine readable medias, are stored thereon with instruction, when executed by one or more processors so that
Terminal device executes such as claim 1-7 any one of them methods.
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