CN109000886A - A kind of light source detection method and device thereof, equipment and storage medium - Google Patents
A kind of light source detection method and device thereof, equipment and storage medium Download PDFInfo
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Abstract
One exemplary embodiment of the application discloses a kind of light source detection method, wherein the described method includes: obtaining the chromaticity coordinates of the light source to be measured under colour temperature to be measured；Obtain the value of the reference parameter of reference light source under colour temperature to be measured；According to the value of the chromaticity coordinates of the light source to be measured and the reference parameter, the light source to be measured is detected.One exemplary embodiment of the application also provides a kind of light source detection device, equipment and storage medium simultaneously.
Description
Technical field
This application involves optical technology more particularly to a kind of light source detection method and device thereof, equipment and storage medium.
Background technique
The colour temperature of light source refer to light source issue light photochromic and absolute black body it is photochromic identical when, the temperature of absolute black body
Degree.In general, the light source of low color temperature issues warm light, the light source of high color temperature issues cold light.In order to reach standardized production, enterprise can be right
The consistency of light source is managed, currently, the mode of most of camera module manufacturers control light source consistency is: general
It is to carry out an inspection to light source using Golden mould group (master die group) to make the RGB of camera real scene shooting by adjusting light source color temperature
(Red Green Blue, the red, green and blue) EEPROM (Electrically of value and burning in camera module
Erasable Programmable read only memory, with Electrically Erasable Programmable Read-Only Memory) rgb value difference exist
In specification limit, i.e., light source point is examined successfully.
The method of this control light source consistency is by adjusting light source color temperature to manage light source rgb value.However, same
Kind colour temperature corresponds to a variety of rgb values, therefore, the RGB consistency before and after light source is not ensured that, especially if light source uses one section
Chromaticity coordinates drift occurs after time, the RGB consistency before and after light source just differs bigger.Thus it causes a problem in that, uses this
Kind control mode can not be such that their light source is consistent different module factory men；Taken the photograph for what is equally configured
As head mould group, when being produced by two module factory men of difference, the light source for the product produced, colour temperature is consistent, but light
The rgb value in source is not consistent.In this way, it is necessary to which debugging covers different parameters to guarantee the consistency of light source, leads to workload
It is larger, the high production cost of enterprise.
Summary of the invention
In view of this, one exemplary embodiment of the application provides a kind of light source detection method and device thereof, equipment and deposits
Storage media.
The technical solution of the embodiment of the present application is achieved in that
One exemplary embodiment of the application provides a kind of light source detection method, which comprises
Obtain the chromaticity coordinates of the light source to be measured under colour temperature to be measured；
Obtain the value of the reference parameter of reference light source under colour temperature to be measured；
According to the value of the chromaticity coordinates of the light source to be measured and the reference parameter, the light source to be measured is detected.
One exemplary embodiment of the application provides a kind of light source detection device, and the light source detection device includes: first to obtain
Take unit, second acquisition unit and detection unit, in which:
The first acquisition unit, for obtaining the chromaticity coordinates of the light source to be measured under colour temperature to be measured；
The second acquisition unit, for obtaining the value of the reference parameter of reference light source under colour temperature to be measured；
The detection unit, for according to the chromaticity coordinates of the light source to be measured and the value of the reference parameter, to described
Light source to be measured is detected.
One exemplary embodiment of the application provides a kind of light source detection apparatus, including memory and processor, the storage
Device is stored with the computer program that can be run on a processor, which is characterized in that the processor is realized when executing described program
Step in above-mentioned light source detection method.
One exemplary embodiment of the application provides a kind of computer readable storage medium, is stored thereon with computer program,
It is characterized in that, the computer program realizes the step in light source detection method as described above when being executed by processor.
One exemplary embodiment of the application provides a kind of light source detection method and device thereof, equipment and storage medium, wherein
Obtain the chromaticity coordinates of the light source to be measured under colour temperature to be measured；Obtain the value of the reference parameter of reference light source under colour temperature to be measured；Root
According to the chromaticity coordinates of the light source to be measured and the value of the reference parameter, the light source to be measured is detected；It so, it is possible straight
It connects the chromaticity coordinates based on light source to manage light source, different module factory men manages light source energy after the same method
Guarantee the consistency of light source, and for equally configuring, the camera module of different module factory man production, it is only necessary to it is a set of
Tuning parameter saves workload, reduces the production cost of enterprise.
Detailed description of the invention
Fig. 1 is the implementation process schematic diagram one of one exemplary embodiment light source detection method of the application；
Fig. 2A is the implementation process schematic diagram two of one exemplary embodiment light source detection method of the application；
Fig. 2 B is the implementation process schematic diagram three of one exemplary embodiment light source detection method of the application；
Fig. 2 C is one exemplary embodiment reference coordinate range schematic diagram one of the application；
Fig. 2 D is one exemplary embodiment reference coordinate range schematic diagram two of the application；
Fig. 3 A is the implementation process schematic diagram four of one exemplary embodiment light source detection method of the application；
Fig. 3 B is one exemplary embodiment qualification light source schematic diagram of the application；
Fig. 4 is the composed structure schematic diagram of one exemplary embodiment light source detection device of the application；
Fig. 5 is a kind of hardware entities schematic diagram of one exemplary embodiment light source detection apparatus of the application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical solution of application is described in further detail.Following embodiment is not used to limit for illustrating the application
Scope of the present application processed.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
The explanation for being conducive to the application, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
One exemplary embodiment of the application provides a kind of light source detection method, and Fig. 1 is one exemplary embodiment light of the application
The implementation process schematic diagram one of source detection method, as shown in Figure 1, this method comprises:
Step S101, the chromaticity coordinates of the light source to be measured under colour temperature to be measured is obtained；
Here, chromaticity coordinates is exactly the coordinate of color, generally indicates a kind of color with (x, y), is also color specification system, wherein x
For abscissa, y is ordinate.There is chromaticity coordinates, can determine a point on a chromaticity diagram, the luminous face of this Precise Representation
Color.NTSC (National Television Systems Committee, National Television Standards Committee) regulation, standard are red
Color chromaticity coordinates be (0.67,0.33), standard green chromaticity coordinates be (0.21,0.71), standard blue chromaticity coordinates be (0.14,
0.08), pure white light chromaticity coordinates is (0.33,0.33).Generally, the luminescent color of light source can be also indicated with colour temperature, but
It is that colour temperature can only roughly indicate luminescent color, and two similar colors, chromaticity coordinates is different, but its colour temperature may be phase
With.
In one exemplary embodiment of the application, colour temperature to be measured can be set according to actual needs.The same light source to be measured,
Chromaticity coordinates under some colour temperature to be measured is certain, different light source to be measured, the chromaticity coordinates under some colour temperature to be measured
It can be different.For example, chromaticity coordinates of the light source A under 3100K (Kelvin) colour temperature is (0.4301,0.4014), light source B exists
Chromaticity coordinates under 3100K colour temperature is (0.4132,0.4198), and the chromaticity coordinates of light source A and light source B under identical colour temperature is different
's.
Step S102, the value of the reference parameter of reference light source under colour temperature to be measured is obtained；
In one exemplary embodiment of the application, the value of the reference parameter of the reference light source be can include but is not limited to:
Color value of the reference light source under the colour temperature to be measured, reference coordinate range of the reference light source under coordinate under colour temperature to be measured
Deng those skilled in the art can according to actual needs, select the value of the reference parameter of suitable reference light source.
Step S103, according to the value of the chromaticity coordinates of the light source to be measured and the reference parameter, to the light source to be measured
It is detected.
In the light source detection method that one exemplary embodiment of the application provides, by obtaining the light to be measured under colour temperature to be measured
The chromaticity coordinates in source；Obtain the value of the reference parameter of reference light source under colour temperature to be measured；According to the chromaticity coordinates of the light source to be measured
With the value of the reference parameter, the light source to be measured is detected；The chromaticity coordinates that so, it is possible to be directly based upon light source is to light
Source is managed, different module factory men manage light source after the same method it is ensured that light source consistency, and it is right
In the camera module of same configuration, different module factory man production, it is only necessary to a set of tuning parameter saves workload,
Reduce the production cost of enterprise.
Based on above-mentioned embodiment of the method, one exemplary embodiment of the application provides a kind of light source detection method, Fig. 2A again
For the implementation process schematic diagram two of one exemplary embodiment light source detection method of the application, as shown in Figure 2 A, this method comprises:
Step S201, the chromaticity coordinates of the light source to be measured under colour temperature to be measured is obtained；
Step S202, color value of the reference light source under the colour temperature to be measured is obtained；
Here, color value refers under each color model, the value of corresponding color component, wherein color model includes
Many types, HSV (Hue Saturation Value, form and aspect, saturation degree and chromatic luminosity) color model, HIS (Hue
Saturation Intensity, tone, color saturation and brightness) color model, RGB color model, YUV color model,
CMYK (Cyan Magenta Yellow, cyan, product color and yellow) color model etc..For example, under RGB color model, to
Survey the corresponding rgb value of chromaticity coordinates of light source, i.e. R component value, G component value and B component value；Under YUV model, the color of light source to be measured
The value of the corresponding YUV of coordinate, i.e. Y-component value, U component value and V component value.
However, all having reduction formula for different color model, therefore, using under any color model
Color value, for example, RGB color model can be converted into YUV color model by formula (1), YUV color model can pass through
Formula (2) is converted into RGB color model:
It should be understood that related can convert between different color model, therefore, which kind of color model used
Color value, those skilled in the art can select according to the actual needs, and which is not described herein again.
Here, the reference light source can be the standard sources in industry as known to those skilled in the art, wherein institute
The chromaticity coordinates of standard sources is stated all on the black body locus curve of chromatic diagram.It is also possible to different manufacturers, or uses
Person is actually needed according to itself, the one group of colour temperature and the one-to-one light source of chromaticity coordinates of setting, as reference light source.
Step S203, according to the chromaticity coordinates of the light source to be measured, the color value of the light source to be measured is determined；
Step S204, according to the color value of the color value of the light source to be measured and reference light source, to the light source to be measured into
Row detection.
Here, the color value of the color value of the light source to be measured and reference light source is the color value under same color model.
In the light source detection method that one exemplary embodiment of the application provides, by obtaining the light to be measured under colour temperature to be measured
The chromaticity coordinates in source；Obtain color value of the reference light source under the colour temperature to be measured；According to the chromaticity coordinates of the light source to be measured, determine
The color value of the light source to be measured；According to the color value of the color value of the light source to be measured and reference light source, to the light to be measured
It is detected in source；The chromaticity coordinates that so, it is possible to be directly based upon light source manages light source, different module factory men according to
Same method control light source it is ensured that light source consistency, and the module factory man production for equally configuring, different
Camera module, it is only necessary to a set of tuning parameter, save workload, reduce the production cost of enterprise.
Based on above-mentioned embodiment of the method, one exemplary embodiment of the application provides a kind of light source detection method again, described
Method the following steps are included:
Step S211, the chromaticity coordinates of the light source to be measured under colour temperature to be measured is obtained；
Here, the colour temperature to be measured of light source to be measured, may include many different colour temperatures to be measured, such as 3100K, 4000K,
6000K etc. is set with specific reference to actual needs.
Step S212, color value of the reference light source under the colour temperature to be measured is obtained；
Step S213, according to the chromaticity coordinates of the light source to be measured, the color value of the light source to be measured is determined；
Here, the color value of the color value of light source to be measured and reference light source is the color value under same color model, example
Such as, the color value of light source to be measured is RGB color value, and the color value of reference light source is also RGB color value.
Step S214, according to the color value of the color value of the light source to be measured and reference light source, the light source to be measured is determined
Deviation in color；
Here, according to the color value of the color value of the light source to be measured and reference light source, determine the light source to be measured in face
Deviation on color is equivalent to the specification that a set of detection light source consistency has been formulated to different module factory men, so that different
Module factory man, can be produced according to identical specification, and then for the product of same configuration, unified light source
Consistency.
It should be noted that being examined according to the deviation to the light source to be measured in one exemplary embodiment of the application
It surveys, whether the consistency for mainly detecting light source to be measured meets the requirements.
Step S215, when the deviation is less than or equal to preset first threshold, the light source to be measured is qualified light source；
Here, multiple and different colour temperatures to be measured are arranged in light source to be measured for one, can needed when the light source to be measured
When deviation under colour examining temperature is both less than equal to preset first threshold, the light source to be measured is qualified light source.For example, for a certain
Light source to be measured, it is 1500K, 3100K, 4000K and 8000K that colour temperature to be measured, which is arranged, then determines that the light source to be measured exists respectively
Whether the deviation under 1500K, 3100K, 4000K and 8000K is less than or equal to 3, if in 1500K, 3100K, 4000K and 8000K
Under deviation all meet the requirements, then the light source to be measured is qualified light source.The light source to be measured can also be worked as most of to colour examining
When deviation under temperature is both less than equal to preset first threshold, the light source to be measured is qualified light source.It is specific to require, Ke Yigen
It is set according to actual needs.
In practical applications, the preset first threshold can be set according to different products, in general,
When first threshold is relatively large, detect light source to be measured whether be qualified light source standard it is looser, first threshold is relatively small
When, detect light source to be measured whether be qualified light source standard it is stringenter.
Here, for different colour temperatures to be measured, the preset first threshold setting be may be the same or different.Example
Such as, light source to be measured for one, colour temperature to be measured are 1500K, 3100K, 4000K and 8000K, and the light source to be measured can be set
First threshold at all colour temperature 1500K, 3100K, 4000K and 8000K to be measured is all 3；Also the light to be measured can be set
First threshold of the source at colour temperature 1500K and 8000K to be measured is 3, and the first threshold at colour temperature 3100K and 4000K to be measured is
4。
Step S216, when the deviation is greater than the preset first threshold, the light source to be measured is adjusted, so that adjusting
Light source to be measured afterwards is qualified light source.
Here, light source to be measured for one is provided with multiple and different colour temperatures to be measured, can be when the light source to be measured is one
When deviation under a colour temperature to be measured is greater than preset first threshold, it is believed that the light source to be measured is not qualified light source；It can also work as
When deviation of the light source to be measured under two colour temperatures to be measured is greater than preset first threshold, it is believed that the light source to be measured is not to close
Lattice light source, it is specific to require, it can be set according to actual needs, which is not described herein again.
In one exemplary embodiment of the application, when the light source to be measured is not qualified light source, need to the light to be measured
Source is adjusted, so that the light source to be measured after adjusting is qualified light source.Wherein it is possible to indirectly be adjusted by adjusting colour temperature to be measured
The chromaticity coordinates of light source meets the requirements the light source to be measured, can also directly adjust light source to be measured chromaticity coordinates make it is described to
Light source is surveyed to meet the requirements.In practical applications, corresponding mode can be selected to be adjusted according to the different attribute of light source to be measured
Section.
In other embodiments, the step S214, according to the color value of the light source to be measured and the color of reference light source
Value, determines deviation of the light source to be measured in color, can be accomplished by the following way, wherein the mode includes following
Step:
Step S2141, by the ratio of the red color component value of reference light source and the green component values of reference light source, it is determined as
One value；
Step S2142, by the ratio of the red color component value of light source to be measured and the green component values of light source to be measured, it is determined as
Two-value；
Step S2143, by the ratio of the green component values of the blue color component value of reference light source and reference light source, it is determined as
Three values；
Step S2144, by the ratio of the blue color component value of light source to be measured and the green component values of light source to be measured, it is determined as
Four values；
Step S2145, by the difference of first value and the second value, ratio with first value is determined as
Five values；
Step S2146, by the difference of the third value and the 4th value, ratio with the third value is determined as
Six values；
Step S2147, by the sum of square square with the 6th value of the 5th value, sqrt operation is carried out,
It is determined as deviation of the light source to be measured in color.
Here, the offset determination methods that the step S2141 is recorded to step S2147, are only intended to illustrate, for difference
Light source, different color model etc., have different offset determination methods.
Based on above-mentioned embodiment of the method, one exemplary embodiment of the application provides a kind of light source detection method, Fig. 2 B again
For the implementation process schematic diagram three of one exemplary embodiment light source detection method of the application, as shown in Figure 2 B, this method comprises:
Step S221, the chromaticity coordinates of the light source to be measured under colour temperature to be measured is obtained；
In one exemplary embodiment of the application, the reference light source be can be in industry as known to those skilled in the art
Standard sources.Wherein, the chromaticity coordinates of the standard sources is all on the black body locus curve of chromatic diagram, i.e., the described standard sources
Corresponding chromaticity coordinates is fixed under some colour temperature.For example, in CIE (Commission Internationale de L'
Eclairage, International Commission on Illumination) in chromaticity coordinates, the chromaticity coordinates of the standard sources under 3100K colour temperature is xyY 1931
The chromaticity coordinates of (0.42999,0.40157), standard sources under 4000K colour temperature is (0.38045,0.37675), 5100K colour temperature
Under standard sources chromaticity coordinates be (0.34236,0.34938).Be also possible to different manufacturer or user according to
Itself actual needs, the one group of colour temperature and the one-to-one light source of chromaticity coordinates of setting, as reference light source.
Step S222, reference coordinate range of the reference light source under coordinate under colour temperature to be measured is obtained；
In practical applications, can according to the colour temperature tolerance of reference light source, the chromaticity coordinates and second threshold of reference light source,
A closed figure, the chromaticity coordinates on the closed figure, as ginseng of the reference light source under coordinate are determined on chromatic diagram
Examine coordinate range.It is of course also possible to determine reference coordinate range of the reference light source under coordinate according to other methods.Its
In, determine the closed figure method can there are many kinds of, therefore, the shape of the closed figure, and being not quite similar.
In practical applications, those skilled in the art can set a determining closed figure method, in color according to itself practical needs
Corresponding closed figure is determined on degree figure.
Step S223, according to the chromaticity coordinates of the light source to be measured and the reference coordinate range, to the light source to be measured into
Row detection；
In one exemplary embodiment of the application, for same colour temperature to be measured, when in the second threshold and above-described embodiment
First threshold it is identical when, the chromaticity coordinates according to the light source to be measured and the reference coordinate range, to the light to be measured
Source is detected, and is equivalent to according to the color value of the light source to be measured and the color value of reference light source, to the light source to be measured
On the basis of being detected, further, a kind of more intuitively patterned light source detection method to be measured is provided.That is this implementation
Example in, under some colour temperature to be measured, can first determine the corresponding closed figure of the colour temperature to be measured, then directly judgement described in
Whether the chromaticity coordinates for surveying light source is distributed in the closed figure, to judge whether the light source to be measured is qualified light source, without
It needs to obtain color value by the chromaticity coordinates of light source to be measured, and then deviation is calculated according to color value, judge the light to be measured
Whether source is qualified light source.This patterned light source detection method, is utilized the color value and ginseng according to the light source to be measured
The color value for examining light source determines the principle of deviation of the light source to be measured in color, still, more intuitively, convenient.
In the light source detection method that one exemplary embodiment of the application provides, by obtaining the light to be measured under colour temperature to be measured
The chromaticity coordinates in source；Obtain reference coordinate range of the reference light source under coordinate under colour temperature to be measured；According to the light to be measured
The chromaticity coordinates in source and the reference coordinate range, detect the light source to be measured；It so, it is possible the color for being directly based upon light source
Coordinate pair light source is managed, different module factory men manage light source after the same method it is ensured that light source it is consistent
Property, and for equally configuring, the camera module of different module factory man production, it is only necessary to a set of tuning parameter is saved
Workload reduces the production cost of enterprise.
Based on above-mentioned embodiment of the method, one exemplary embodiment of the application provides a kind of light source detection method again, described
Method the following steps are included:
Step S231, the chromaticity coordinates of the light source to be measured under colour temperature to be measured is obtained；
Step S232, the colour temperature tolerance of the reference light source under colour temperature to be measured and the chromaticity coordinates of reference light source are obtained；
For example, when colour temperature to be measured is 3100K, the colour temperature tolerance can be 30,50,70 etc..Reference light source exists
Colour temperature tolerance under colour temperature to be measured, those skilled in the art can be configured according to the actual needs.
Here, there are when multiple and different colour temperatures to be measured, the colour temperature tolerance of each colour temperature to be measured can be identical, can also not
Together.For example, a light source to be measured, corresponding colour temperature to be measured is 3100K, 4000K and 6000K, then above three colour temperature pair to be measured
The colour temperature tolerance answered can all be 50；It can also be that the corresponding colour temperature tolerance of 30,4000K is with the corresponding colour temperature tolerance of 3100K
50,6000K corresponding colour temperature tolerances are 70.
Step S233, the preset second threshold under colour temperature to be measured is obtained；
Here, for same colour temperature to be measured, the second threshold can be identical with the first threshold in above-described embodiment,
It can be different with the first threshold in above-described embodiment.
First in the second threshold and above-described embodiment typically, for same colour temperature to be measured, in the present embodiment
Threshold value is identical.For example, in the above-described embodiments, the colour temperature to be measured for adjusting light source to be measured is 3100K, when the light source to be measured
Deviation when being less than or equal to 3, the light source to be measured is qualified light source.Then in the present embodiment, adjust light source to be measured to colour examining
After temperature is 3100K, the preset second threshold of acquisition is just 3.
Step S234, according to the colour temperature tolerance of the reference light source, the chromaticity coordinates and second threshold of the reference light source
Value, determines reference coordinate range of the reference light source under coordinate on a chromaticity diagram；
Step S235, when the color coordinates distribution of the light source to be measured is when within the scope of the reference coordinate, or, when it is described to
The color coordinates distribution of light source is surveyed when on the boundary of the reference coordinate range, the light source to be measured is qualified light source；
Here, when there is many different colour temperatures to be measured, the light source to be measured is that the judgment mode of qualified light source has two
Kind, one is under all colour temperatures to be measured, only when chromaticity coordinates of the light source to be measured under different colour temperatures to be measured is all distributed in institute
When stating within the scope of reference coordinate, the light source to be measured is qualified light source；Another kind is, under all colour temperatures to be measured, when it is described to
Color coordinates distribution of the light source under different colour temperatures to be measured is surveyed within the scope of the reference coordinate or reference coordinate range side
When in boundary, the light source to be measured is qualified light source.
Step S236, when the color coordinates distribution of the light source to be measured is when outside the reference coordinate range, adjust it is described to
Light source is surveyed, so that the light source to be measured after adjusting is qualified light source.
Here, it when the light source to be measured is not qualified light source, needs that the light source to be measured is adjusted, so that adjusting
Light source to be measured afterwards is qualified light source.Wherein it is possible to which the chromaticity coordinates for indirectly adjusting light source to be measured by adjusting colour temperature makes institute
It states light source to be measured to meet the requirements, the chromaticity coordinates that can also directly adjust light source to be measured meets the requirements the light source to be measured.?
In practical application, corresponding mode can be selected to be adjusted according to the different attribute of light source to be measured.
For example, the step S234, according to the colour temperature tolerance of the reference light source, the chromaticity coordinates of the reference light source
With the second threshold, reference coordinate range of the reference light source under coordinate is determined on a chromaticity diagram, can be passed through
A kind of mode is realized, wherein a kind of mode the following steps are included:
Step S2341a, by the difference of the colour temperature to be measured and the colour temperature tolerance, it is determined as the first colour temperature；
Step S2342a, by the colour temperature to be measured and the colour temperature tolerance and, be determined as the second colour temperature；
Step S2343a, by two on two points on the thermoisopleth of first colour temperature and the thermoisopleth of the second colour temperature
Point, be determined as first point, second point, thirdly with the 4th point, wherein described first point, second point, thirdly, the 4th point, with
The distance between chromaticity coordinates of the reference light source is equal to second threshold；
Step S2344a, on a chromaticity diagram, successively with straight line connection it is described first point, second point, thirdly with the 4th point,
Determine a quadrangle；
Step S2345a, the reference coordinate for constituting the chromaticity coordinates on the quadrangle, is determined as the reference light source and exists
Reference coordinate range under coordinate.
For example, Fig. 2 C is one exemplary embodiment reference coordinate range schematic diagram one of the application, as shown in Figure 2 C, to
Colour examining temperature is A Kelvin, and colour temperature tolerance is 50 Kelvins, black matrix of chromaticity coordinates of the reference light source under colour temperature to be measured in chromatic diagram
On geometric locus 21, the thermoisopleth 22 of the first colour temperature and the thermoisopleth 23 of the second colour temperature are located at reference light source in colour temperature to be measured
Under chromaticity coordinates two sides.Two points on two points on the thermoisopleth 22 of first colour temperature and the thermoisopleth 23 of the second colour temperature,
Second threshold is equal at a distance from the reference light source is between the chromaticity coordinates under colour temperature to be measured.Then on a chromaticity diagram, successively
Two points on the thermoisopleth 22 of the first colour temperature are connected with straight line, two points on the thermoisopleth 23 of the second colour temperature determine one
Quadrangle 24.The reference coordinate that chromaticity coordinates on the quadrangle 24 is constituted, is determined as the reference light source in coordinate
Under reference coordinate range, wherein the chromaticity coordinates on the quadrangle 24, including the chromaticity coordinates in quadrangle, and four
Chromaticity coordinates on the shape boundary line of side.
For example, the step S234, according to the colour temperature tolerance of the reference light source, the chromaticity coordinates of the reference light source
With the second threshold, reference coordinate range of the reference light source under coordinate is determined on a chromaticity diagram, can also be led to
Cross another way realization, wherein the another way the following steps are included:
Step S2341b, by the difference of the colour temperature to be measured and the colour temperature tolerance, it is determined as the first colour temperature；
Step S2342b, by the colour temperature to be measured and the colour temperature tolerance and, be determined as the second colour temperature；
Step S2343b, on a chromaticity diagram, according to the chromaticity coordinates of the reference light source and the second threshold, one is determined
Irregular figure；
Here, the coordinate in CIE xyY coordinate is non-uniform, therefore, in CIE xyY chromatic diagram, according to institute
The chromaticity coordinates and the second threshold of reference light source are stated, determining figure is an irregular figure.
Step S2344b, in the irregular figure, by the thermoisopleth of the thermoisopleth of the first colour temperature and the second colour temperature
Between figure on chromaticity coordinates constitute reference coordinate, be determined as reference coordinate model of the reference light source under coordinate
It encloses.
For example, Fig. 2 D is one exemplary embodiment reference coordinate range schematic diagram two of the application, as shown in Figure 2 D, to
Colour examining temperature is A Kelvin, and colour temperature tolerance is 50 Kelvins, black matrix of chromaticity coordinates of the reference light source under colour temperature to be measured in chromatic diagram
On geometric locus 21, the thermoisopleth 22 of the first colour temperature and the thermoisopleth 23 of the second colour temperature are located at reference light source in colour temperature to be measured
Under chromaticity coordinates two sides.According to chromaticity coordinates and the second threshold of the reference light source under colour temperature to be measured, in chromatic diagram
One irregular figure of upper determination.In the irregular figure, by the thermoisopleth 22 of the first colour temperature and the second colour temperature
The reference coordinate that chromaticity coordinates on figure 25 between thermoisopleth 23 is constituted, is determined as the reference light source under coordinate
Reference coordinate range.
Based on above-mentioned embodiment of the method, one exemplary embodiment of the application provides a kind of light source detection method, Fig. 3 A again
For the implementation process schematic diagram three of one exemplary embodiment light source detection method of the application, as shown in Figure 3A, this method comprises:
Step S301, in 1931 coordinate of CIE xyY, on black body locus curve chromaticity coordinates (0.42999,
0.40157) chromaticity coordinates as standard sources under 3100K colour temperature, the rgb value for recording the colour temperature chromaticity coordinates of the standard sources are
R0,G0,B0；
In in September, 1931, the color science men of CIE create a new color system, i.e. CIE XYZ primary systems,
It is alike primary systems relevant to RGB, but is more suitable for the calculating of color.In turn, color science men define again
CIE xyY color space, a color space as derived from XYZ, its handle x and y relevant to color attribute from lightness attribute
It is separated in relevant brightness Y, wherein the coordinate system in the corresponding chromatic diagram of CIE xyY color space, as CIE xyY
1931 chromaticity coordinates.
Step S302, it is measured with illumination photometer to a chromaticity coordinates of the inspection light source under 3100K colour temperature, is denoted as (x1, y1), and will
It is converted to rgb value, is denoted as R1, G1, B1；
Here, in 1931 chromaticity coordinates of CIE xyY, chromaticity coordinates is converted into corresponding rgb value, formula (3) can be passed through
It is realized in conjunction with formula (4):
Wherein, X1, Y1, Z1 are the corresponding three primary colours component value in 1931 primary systems of CIE XYY.
Step S303, it according to described R0, G0, B0 and R1, G1, B1, calculates described to inspection light source and the standard sources
Deviation；
Here, the deviationIt can be realized by formula (5):
Step S304, when the deviation is less than the normal value of setting, then the light source is qualified light source.
In one exemplary embodiment of the application, it can be based on the normal value, defined with patterned method about specification
It is interior to an inspection light source color coordinates distribution.Wherein, described to be defined as follows: the colour temperature margin of tolerance under 3100K colour temperature is defined as
(3100 ± n) K, n are colour temperature tolerance value；Two thermoisopleths of (3100 ± n) K colour temperature chromaticity coordinates, and distance are crossed on blackbody curve
The deviation of the chromaticity coordinates (0.42999,0.40157) of standard sources under 3100K colour temperatureEqual to four points of the normal value,
The closed quadrangle connected into；Then when the color coordinates distribution of inspection light source is in this quadrangle, it is defined as
Qualified light source.
It should be understood that step S301 to step S304 and it is described with patterned method define about in specification
To inspection a light source color coordinates distribution, be all to be illustrated with 3100K colour temperature, in practical applications, can according to need selection
Different colour temperatures executes above-mentioned method, step, directly treats a chromaticity coordinates for inspection light source and is managed, before and after guarantee light source
The consistency for the light source that RGB consistency, different module factory men provide.Fig. 3 B is one exemplary embodiment qualification light of the application
Source schematic diagram, as shown in Figure 3B, the colour temperature to be measured with light source to be measured are 3100K, 4000K and 5100K, corresponding colour temperature tolerance
Range is (3100 ± 50) K, (4000 ± 50) K, (5100 ± 50) K, deviationFor the chromaticity coordinates range described.Wherein,
The chromaticity coordinates of standard sources are as follows: the corresponding chromaticity coordinates of 3100K colour temperature is (0.42999,0.40157), the corresponding color of 4000K colour temperature
Coordinate is (0.38045,0.37675), the corresponding chromaticity coordinates of 5100K colour temperature is (0.34236,0.34938), when to an inspection light source
Color coordinates distribution in the quadrangle that four points are connected when, i.e., when to inspection distribution of light sources in quadrangle 31 or quadrangle
32 or quadrangle 33 in when, described to an inspection light source is qualified light source.
In the light source detection method that one exemplary embodiment of the application provides, by 1931 coordinate of CIE xyY
In, it is sat with the chromaticity coordinates (0.42999,0.40157) on black body locus curve as color of the standard sources under 3100K colour temperature
Mark, the rgb value for recording the colour temperature chromaticity coordinates of the standard sources is R0, G0, B0；It is measured to inspection light source with illumination photometer in 3100K
Chromaticity coordinates under colour temperature is denoted as (x1, y1), and is converted into rgb value, is denoted as R1, G1, B1；According to described R0, G0, B0 and
R1, G1, B1 are calculated described to a deviation for inspection light source and the standard sources；When the deviation is less than the normal value of setting,
Then the light source is qualified light source；It so, it is possible OTP (the One Time based on 1931 chromaticity coordinates of CIE xyY
Programmable, One Time Programmable) light source management-control method, directly to the chromaticity coordinates of light source, this light source control mode is de-
It is limited from Golden mould group, as long as difference Mo Zu factory manages light source according to same specification, for equally configuring, by two mould groups
The camera module of factory's production, it is only necessary to which a set of tuning parameter saves workload.
One exemplary embodiment of the application provides a kind of light source detection device, and Fig. 4 is one exemplary embodiment light of the application
The composed structure schematic diagram of source detection device, as shown in figure 4, described device 400 includes: that first acquisition unit 401, second obtains
Unit 402 and detection unit 403, in which:
The first acquisition unit 401, for obtaining the chromaticity coordinates of the light source to be measured under colour temperature to be measured；
The second acquisition unit 402, for obtaining the value of the reference parameter of reference light source under colour temperature to be measured；
The detection unit 403, for according to the chromaticity coordinates of the light source to be measured and the value of the reference parameter, to institute
Light source to be measured is stated to be detected.
In other embodiments, the second acquisition unit 402, comprising:
First obtains module, for obtaining color value of the reference light source under the colour temperature to be measured；
Second obtains module, for obtaining reference coordinate range of the reference light source under coordinate under colour temperature to be measured.
In other embodiments, the detection unit 403, comprising:
First determining module determines the color value of the light source to be measured for the chromaticity coordinates according to the light source to be measured；
First detection module, for according to the color value of the light source to be measured and the color value of reference light source, to it is described to
Light source is surveyed to be detected；
Second detection module, for according to the light source to be measured chromaticity coordinates and the reference coordinate range, to it is described to
Light source is surveyed to be detected.
In other embodiments, the first detection module, comprising:
First determines component, described in determining according to the color value of the light source to be measured and the color value of reference light source
Deviation of the light source to be measured in color；
First detection part, for being detected according to the deviation to the light source to be measured.
In other embodiments, first detection part, comprising:
First judgement part, for judging when the deviation is less than or equal to preset first threshold, the light source to be measured
For qualified light source；
First regulating member, for adjusting the light source to be measured when the deviation is greater than the preset first threshold,
So that the light source to be measured after adjusting is qualified light source.
In other embodiments, described first component is determined, comprising:
Second determines component, for by the ratio of the red color component value of reference light source and the green component values of reference light source,
It is determined as the first value；
Third determines component, for by the ratio of the red color component value of light source to be measured and the green component values of light source to be measured,
It is determined as second value；
4th determines component, for by the ratio of the blue color component value of reference light source and the green component values of reference light source,
It is determined as third value；
5th determines component, for by the ratio of the blue color component value of light source to be measured and the green component values of light source to be measured,
It is determined as the 4th value；
6th determines component, for by the difference of first value and the second value, ratio with first value, really
It is set to the 5th value；
7th determines component, for by the difference of the third value and the 4th value, ratio with the third value, really
It is set to the 6th value；
8th determines component, for extracting square root the sum of square square with the 6th value of the 5th value
Root operation is determined as deviation of the light source to be measured in color.
In other embodiments, described second module is obtained, comprising:
First obtaining widget, for obtaining the colour temperature tolerance of the reference light source under colour temperature to be measured and the color seat of reference light source
Mark；
Second obtaining widget, for obtaining the preset second threshold under colour temperature to be measured；
Third obtaining widget, for obtaining the colour temperature tolerance of the reference light source under colour temperature to be measured and the color seat of reference light source
Mark；
4th obtaining widget, for obtaining the preset second threshold under colour temperature to be measured；
9th determines component, for according to the colour temperature tolerance of the reference light source, the chromaticity coordinates of the reference light source and institute
Second threshold is stated, determines reference coordinate range of the reference light source under coordinate on a chromaticity diagram.
In other embodiments, second detection module, comprising:
Second judgement part, for judging when the color coordinates distribution of the light source to be measured is within the scope of the reference coordinate
When, or, the light source to be measured is to close when the color coordinates distribution of the light source to be measured is when on the boundary of the reference coordinate range
Lattice light source；
Second regulating member, for adjusting when the color coordinates distribution of the light source to be measured is when outside the reference coordinate range
The light source to be measured is saved, so that the light source to be measured after adjusting is qualified light source.
In other embodiments, the described 9th component is determined, comprising:
Tenth determines component, for being determined as the first colour temperature for the difference of the colour temperature to be measured and the colour temperature tolerance；
11st determines component, for by the colour temperature to be measured and the colour temperature tolerance and, be determined as the second colour temperature；
12nd determines component, for by the thermoisopleth of two points and the second colour temperature on the thermoisopleth of first colour temperature
On two points, be determined as first point, second point, thirdly with the 4th point, wherein described first point, second point, thirdly,
4th point, the distance between chromaticity coordinates of the reference light source is equal to second threshold；
13rd determines component, on a chromaticity diagram, successively with straight line connection is first point described, second point, thirdly
With the 4th point, determine a quadrangle；
14th determines component, and the reference coordinate for constituting the chromaticity coordinates on the quadrangle is determined as the ginseng
Examine reference coordinate range of the light source under coordinate.
In other embodiments, the described 9th component is determined, further includes:
15th determines component, on a chromaticity diagram, according to the chromaticity coordinates of the reference light source and the second threshold,
Determine an irregular figure；
16th determines component, is used in the irregular figure, by the thermoisopleth of the first colour temperature and the second colour temperature
Thermoisopleth between figure on chromaticity coordinates constitute reference coordinate, be determined as ginseng of the reference light source under coordinate
Examine coordinate range.
It need to be noted that: the description of apparatus above embodiment, be with the description of above method embodiment it is similar,
With the similar beneficial effect of same embodiment of the method.For undisclosed technical detail in the application Installation practice, please refer to
The description of the application embodiment of the method and understand.
In the embodiment of the present application, if realizing above-mentioned light source detection method in the form of software function module, and conduct
Independent product when selling or using, also can store in a computer readable storage medium.Based on this understanding,
Substantially the part that contributes to existing technology can be with the shape of software product in other words for the technical solution of the embodiment of the present application
Formula embodies, which is stored in a storage medium, including some instructions are used so that a calculating
Equipment executes all or part of each embodiment the method for the application.And storage medium above-mentioned includes: USB flash disk, moves firmly
The various media that can store program code such as disk, ROM (Read Only Memory, read-only memory), magnetic or disk.
It is combined in this way, the embodiment of the present application is not limited to any specific hardware and software.
Accordingly, one exemplary embodiment of the application provides a kind of light source detection apparatus, which includes memory and place
Device is managed, the memory is stored with the computer program that can be run on a processor, and the processor executes real when described program
Step in existing light source detection method.
Accordingly, one exemplary embodiment of the application provides a kind of computer readable storage medium, is stored thereon with calculating
Machine program realizes the step in light source detection method when the computer program is executed by processor.
It need to be noted that: the description of medium stored above and apparatus embodiments, with retouching for above method embodiment
It is similar for stating, and has with embodiment of the method similar beneficial effect.For in the application storage medium and apparatus embodiments not
The technical detail of disclosure please refers to the description of the application embodiment of the method and understands.
It should be noted that a kind of hardware entities that Fig. 5 is one exemplary embodiment light source detection apparatus of the application are illustrated
Figure, as shown in figure 5, the hardware entities of the light source detection apparatus 500 include: memory 501, communication bus 502 and processor
503, wherein
Memory 501 is configured to store the instruction and application that can be performed by processor 503, can also cache device to be processed
503 and light source detection apparatus 500 in each module is to be processed or processed data, FLASH (flash memory) or RAM can be passed through
(Random Access Memory, random access storage device) is realized.
Communication bus 502 can make light source detection apparatus 500 by network and other terminals or server communication, can be with
Realize the connection communication between processor 503 and memory 501.
The overall operation of the usually control light source detection apparatus 500 of processor 503.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, the technical solution of the application substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the application.
The application is referring to method, the process of equipment (device) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only preferred embodiment of the present application, are not intended to limit the scope of the patents of the application, all to utilize this Shen
Please equivalent structure or equivalent flow shift made by specification and accompanying drawing content, be applied directly or indirectly in other relevant skills
Art field similarly includes in the scope of patent protection of the application.
Claims (14)
1. a kind of light source detection method, which is characterized in that the described method includes:
Obtain the chromaticity coordinates of the light source to be measured under colour temperature to be measured；
Obtain the value of the reference parameter of reference light source under colour temperature to be measured；
According to the value of the chromaticity coordinates of the light source to be measured and the reference parameter, the light source to be measured is detected.
2. the method according to claim 1, wherein the reference parameter is color value, accordingly, the acquisition
The value of the reference parameter of reference light source under colour temperature to be measured, comprising: obtain color of the reference light source under the colour temperature to be measured
Value；
It is described the light source to be measured to be detected according to the chromaticity coordinates of the light source to be measured and the value of the reference parameter,
Include:
According to the chromaticity coordinates of the light source to be measured, the color value of the light source to be measured is determined；
According to the color value of the color value of the light source to be measured and reference light source, the light source to be measured is detected.
3. the method according to claim 1, wherein the reference parameter be reference coordinate, it is accordingly, described to obtain
Take the value of the reference parameter of reference light source under colour temperature to be measured, comprising: obtain under colour temperature to be measured reference light source in chromaticity coordinates
Reference coordinate range under system；
It is described the light source to be measured to be detected according to the chromaticity coordinates of the light source to be measured and the value of the reference parameter,
Include: the chromaticity coordinates according to the light source to be measured and the reference coordinate range, the light source to be measured is detected.
4. according to the method described in claim 2, it is characterized in that, the color value and reference light according to the light source to be measured
The color value in source detects the light source to be measured, comprising:
According to the color value of the color value of the light source to be measured and reference light source, determine that the light source to be measured is inclined in color
Difference；
The light source to be measured is detected according to the deviation.
5. according to the method described in claim 4, it is characterized in that, described examine the light source to be measured according to the deviation
It surveys, comprising:
When the deviation is less than or equal to preset first threshold, the light source to be measured is qualified light source；
When the deviation is greater than the preset first threshold, the light source to be measured is adjusted, so that the light source to be measured after adjusting
For qualified light source.
6. according to the method described in claim 4, it is characterized in that, the color value and reference light according to the light source to be measured
The color value in source determines deviation of the light source to be measured in color, comprising:
By the ratio of the red color component value of reference light source and the green component values of reference light source, it is determined as the first value；
By the ratio of the red color component value of light source to be measured and the green component values of light source to be measured, it is determined as second value；
By the ratio of the green component values of the blue color component value of reference light source and reference light source, it is determined as third value；
By the ratio of the blue color component value of light source to be measured and the green component values of light source to be measured, it is determined as the 4th value；
According to first value, second value, third value and the 4th value, deviation of the light source to be measured in color is determined.
7. according to the method described in claim 6, it is characterized in that, described according to first value, second value, third value and
Four values determine deviation of the light source to be measured in color, comprising:
By the difference of first value and the second value, ratio with first value is determined as the 5th value；
By the difference of the third value and the 4th value, ratio with the third value is determined as the 6th value；
By the sum of square square with the 6th value of the 5th value, sqrt operation is carried out, is determined as described to be measured
Deviation of the light source in color.
8. according to the method described in claim 3, it is characterized in that, it is described acquisition under colour temperature to be measured reference light source in chromaticity coordinates
Reference coordinate range under system, comprising:
Obtain the colour temperature tolerance of the reference light source under colour temperature to be measured and the chromaticity coordinates of reference light source；
Obtain the preset second threshold under colour temperature to be measured；
According to the colour temperature tolerance of the reference light source, the chromaticity coordinates and the second threshold of the reference light source, on a chromaticity diagram
Determine reference coordinate range of the reference light source under coordinate.
9. according to the method described in claim 8, it is characterized in that, the chromaticity coordinates according to the light source to be measured and the ginseng
Coordinate range is examined, the light source to be measured is detected, comprising:
When the color coordinates distribution of the light source to be measured is when within the scope of the reference coordinate, or, the color when the light source to be measured is sat
When mark is distributed on the boundary of the reference coordinate range, the light source to be measured is qualified light source；
When the color coordinates distribution of the light source to be measured is when outside the reference coordinate range, the light source to be measured is adjusted, so that adjusting
Light source to be measured after section is qualified light source.
10. according to the method described in claim 8, it is characterized in that, the colour temperature tolerance according to the reference light source, described
The chromaticity coordinates of reference light source and the second threshold determine that reference of the reference light source under coordinate is sat on a chromaticity diagram
Mark range, comprising:
By the difference of the colour temperature to be measured and the colour temperature tolerance, it is determined as the first colour temperature；
By the colour temperature to be measured and the colour temperature tolerance and, be determined as the second colour temperature；
By two points on two points on the thermoisopleth of first colour temperature and the thermoisopleth of the second colour temperature, it is determined as first
Point, second point, thirdly with the 4th point, wherein described first point, second point, thirdly, the 4th point, with the reference light source
The distance between chromaticity coordinates be equal to second threshold；
On a chromaticity diagram, successively with straight line connection it is described first point, second point, thirdly with the 4th point, determine a quadrangle；
The reference coordinate that chromaticity coordinates on the quadrangle is constituted, is determined as reference of the reference light source under coordinate
Coordinate range.
11. according to the method described in claim 8, it is characterized in that, the colour temperature tolerance according to the reference light source, described
The chromaticity coordinates of reference light source and the second threshold determine that reference of the reference light source under coordinate is sat on a chromaticity diagram
Mark range, further includes:
By the difference of the colour temperature to be measured and the colour temperature tolerance, it is determined as the first colour temperature；
By the colour temperature to be measured and the colour temperature tolerance and, be determined as the second colour temperature；
On a chromaticity diagram, according to the chromaticity coordinates of the reference light source and the second threshold, an irregular figure is determined；
In the irregular figure, by the color on the figure between the thermoisopleth of the first colour temperature and the thermoisopleth of the second colour temperature
The reference coordinate that coordinate is constituted, is determined as reference coordinate range of the reference light source under coordinate.
12. a kind of light source detection device, which is characterized in that the detection device includes: first acquisition unit, second acquisition unit
And detection unit, in which:
The first acquisition unit, for obtaining the chromaticity coordinates of the light source to be measured under colour temperature to be measured；
The second acquisition unit, for obtaining the value of the reference parameter of reference light source under colour temperature to be measured；
The detection unit, for according to the chromaticity coordinates of the light source to be measured and the value of the reference parameter, to described to be measured
Light source is detected.
13. a kind of light source detection apparatus, including memory and processor, the memory is stored with and can run on a processor
Computer program, which is characterized in that the processor realizes any one of claim 1 to 11 light source when executing described program
Step in detection method.
14. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step in any one of claim 1 to 11 light source detection method is realized when processor executes.
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