TWI700935B - Illumination mixing calculation method, device, computer equipment and storage medium - Google Patents

Abstract

The present invention discloses an illumination light mixing calculation method. The illumination light mixing calculation method includes: obtaining a first color coordinate point corresponding to a first color light, obtaining a second color coordinate point corresponding to a second color light, and obtaining a target color coordinate point, According to the target color coordinate point, the first color coordinate point and the second color coordinate point, the first lumen value mixing ratio of the first color light and the second color light is calculated, and the corresponding intermediate color light obtained by mixing according to the first lumen value mixing ratio is determined The intermediate color coordinate point, according to the intermediate color coordinate point, determines the first compensation color light and the second compensation color light that match the intermediate color coordinate point, and calculates the intermediate color light according to the first compensation color light and the second compensation color light, and determines when it is mixed to the target color coordinate point The mixing ratio of the second lumen value corresponding to the first compensation color light, the second compensation color light and the intermediate color light. Performing light mixing according to the lighting mixing calculation method reduces the color tolerance and improves the light mixing effect. In addition, a lighting mixing calculation device, computer equipment and storage medium are also proposed.

Description

Illumination mixing calculation method, device, computer equipment and storage medium

The present invention relates to the field of computer processing, in particular to a method, device, computer equipment and storage medium for calculating lighting mixing.

The conventional lighting mixing calculation method uses two-color mixing. No matter how the two-color light is mixed, the mixed color light will be on the two-point straight line, and many points deviate from the points defined in Energy Star. The generation of color tolerance. The color tolerance acceptable to the human eye is within 3SDCM (McAdam ellipse), but the conventional lighting mixing calculation method is not accurate enough. The color tolerance generated by mixing light will be greater than 3SDCM, resulting in poor mixing effect .

Based on this, it is necessary to solve the above problems and provide a lighting mixing calculation method, device, computer equipment and storage medium that can reduce the color tolerance and improve the light mixing effect.

In a first aspect, an embodiment of the present invention provides an illumination light mixing calculation method, which includes the following steps: acquiring a first color coordinate point corresponding to a first color light, acquiring a second color coordinate point corresponding to a second color light; acquiring a target color coordinate Point, calculate the first lumen value mixing ratio of the first color light and the second color light according to the target color coordinate point, the first color coordinate point and the second color coordinate point; determine to mix the first color light according to the first lumen value mixing ratio The intermediate color coordinate point corresponding to the intermediate color light obtained by the second color light; Determine the first compensation color light and the second compensation color light matching the middle color coordinate point according to the middle color coordinate point; calculate the middle color light according to the first compensation color light and the second compensation color light, and determine the first compensation color light when mixed to the target color coordinate point , The mixing ratio of the second lumen value corresponding to the second compensation color light and the intermediate color light.

In a second aspect, an embodiment of the present invention provides an illumination light mixing calculation device, which includes: a coordinate point acquisition module for acquiring a first color coordinate point corresponding to a first color light, and a second color coordinate corresponding to a second color light Point; ratio calculation module, used to obtain the target color coordinate point, according to the target color coordinate point, the first color coordinate point and the second color coordinate point to calculate the first color light and the second color light of the first lumen value mixing ratio; The coordinate point determination module is used to determine the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the mixing ratio of the first lumen value; the compensation color light determination module is used to determine the intermediate color according to the intermediate color coordinate point The first compensation color light and the second compensation color light that match the coordinate points; the ratio determination module is used to calculate the intermediate color light according to the first compensation color light and the second compensation color light, and determine the first compensation color light when mixed to the target color coordinate point , The mixing ratio of the second lumen value corresponding to the second compensation color light and the intermediate color light.

In a third aspect, embodiments of the present invention provide a computer device including a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor executes the following steps: Obtain the first color coordinate point corresponding to the first color light, and obtain the second color coordinate point corresponding to the second color light; obtain the target color coordinate point, and calculate it according to the target color coordinate point, the first color coordinate point and the second color coordinate point The first lumen value mixing ratio of the first color light and the second color light; determine the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio; determine the intermediate color coordinate point according to the intermediate color coordinate point The first compensation color light and the second compensation color light that match the coordinate points; the intermediate color light is compensated according to the first compensation color light and the second compensation color light, and the first compensation color light, the second compensation color light and the intermediate color are determined when mixed to the target color coordinate point The mixing ratio of the second lumen value corresponding to the light.

In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium that stores a computer program. When the computer program is executed by a processor, the processor executes the following steps: obtain the first color coordinate point corresponding to the first color light, and obtain The second color coordinate point corresponding to the second color light; obtain the target color coordinate point, and calculate the first lumen value mixture of the first color light and the second color light according to the target color coordinate point, the first color coordinate point and the second color coordinate point Ratio; determine the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio; determine the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point; Compensation calculation is performed on the intermediate color light according to the first compensation color light and the second compensation color light, and the second lumen value mixing ratio corresponding to the first compensation color light, the second compensation color light and the intermediate color light when mixed to the target color coordinate point is determined.

The above lighting mixing calculation method, device, computer equipment and storage medium. First, determine the first lumen value mixing ratio of the first color light and the second color light according to the target color coordinate point, and the intermediate color light obtained according to the first lumen value mixing ratio There is a large color tolerance, and then the first compensation color light and the second compensation color light are matched according to the intermediate color coordinate point, the intermediate color light is compensated, and the first compensation color light, the second compensation color light and the target color light are determined when mixed to the target color coordinate point. The second lumen value mixing ratio corresponding to the intermediate color light. According to the calculated mixing ratio of the first lumen value and the second lumen value, mixing the first color light, the second color light, the first compensation color light and the second compensation color light can be completely mixed to the target color coordinate point, greatly reducing Improved color tolerance and improved light mixing effect.

102 to 110, 702 to 716: steps

Fig. 1 is a flowchart of the method for calculating the lighting mixing according to the embodiment of the present invention.

Figure 2 is a schematic diagram of the CIE 1931 color coordinate diagram of the embodiment of the present invention.

FIG. 3A is a schematic diagram of mixing warm white light and cold white light according to an embodiment of the present invention.

FIG. 3B is a schematic diagram of mixing ratios corresponding to different color temperatures obtained by mixing according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the embodiment of the present invention divided into three color gamut ranges.

Fig. 5 is a schematic diagram of the experimental verification results of the illumination light mixing calculation method according to the embodiment of the present invention.

Fig. 6 is a schematic diagram of the comparison of the experimental verification results of the embodiment of the present invention.

Fig. 7 is a block diagram of a lighting mixing calculation device according to an embodiment of the present invention.

Fig. 8 is a structural block diagram of a lighting mixing calculation device according to an embodiment of the present invention.

Fig. 9 is a block diagram of a lighting mixing calculation device according to an embodiment of the present invention.

Fig. 10 is an internal structure diagram of the computer device according to the embodiment of the present invention.

Fig. 11 is an application environment diagram of the illumination light mixing calculation method according to the embodiment of the present invention.

In order to understand the features, content and advantages of the present invention and its achievable effects, the present invention is combined with the figures and described in detail in the form of an embodiment as follows. The figures used therein are merely The schematic and auxiliary instructions are not necessarily the true proportions and precise configurations after the implementation of the present invention. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted as to limit the scope of rights of the present invention in actual implementation.

In order to make the objectives, technical features, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the drawings and embodiments. It should be understood that the embodiments described here are only used to explain the present invention, but not to limit the present invention.

As shown in Figure 1, a method for calculating lighting mixing is proposed. The lighting mixing calculation method can be applied to computer equipment. The lighting mixing calculation method specifically includes the following steps:

Step 102: Acquire a first color coordinate point corresponding to the first color light, and acquire a second color coordinate point corresponding to the second color light.

Among them, the color coordinate points corresponding to different shades are different. As shown in Figure 2, it is a CIE 1931 color coordinate map. In the figure, the corresponding coordinates of each point are called "color coordinate points". CIE1931 is a set of technical standards for defining and measuring color established by the International Commission on Luminous Lighting. The first color light is different from the second color light. In order to distinguish the color coordinate point of the first color light as the "first color coordinate point", the color coordinate point of the second color light is called the "second color coordinate point".

The chromaticity coordinate refers to the coordinate of the color. The horizontal axis is x and the vertical axis is y. With the color coordinate, you can uniquely determine a point on the chromaticity diagram, and this point accurately represents Luminous color. In addition to expressing with x and y, color temperature can also be used to express the luminous color of the lighting source. In one embodiment, the first color light is Warm White and the second color light is Cool White. The determination of the first color coordinate point and the second color coordinate point can be obtained by searching the factory specifications corresponding to the LED light source emitting the corresponding color light. In order to be more accurate, it can also be measured by measuring equipment (for example, integrating sphere). get.

Step 104: Obtain the target color coordinate point, and calculate the first lumen value mixing ratio of the first color light and the second color light according to the target color coordinate point, the first color coordinate point and the second color coordinate point.

Among them, the target color coordinate point refers to the coordinate point corresponding to the target color light to be obtained by mixing. The target color coordinate points can be customized according to actual needs. For example, in order to reduce the color tolerance, the target color coordinate point is defined as a point on the Energy Star. Of course, it can also be defined as a point on the Blackbody curve of the Planckian locus and a custom point. After the target color coordinate point is determined, the mixing ratio of the first color light and the second color light can be calculated according to the color mixing principle. The mixing ratio is essentially the mixing ratio of the lumens value. In order to distinguish it from the subsequent mixing ratio, it is called It is the "first lumen value mixing ratio". Luminous value is luminous flux, because the unit of luminous flux is lm (lumens), so luminous flux is also called "lumen value".

In one embodiment, the tristimulus value in the mathematical theory of color mixing can be written as follows: X=x*(Y/y); Y=Y; Z=(Y/y)*(1-x-y)

In the formula, x, y are the abscissa and ordinate of the color coordinate point, and X, Y, and Z are the tristimulus values. The final mixed color depends on the value of the tristimulus value. The following is an example of two-color light mixing: Xmix=X1+X2; Ymix=Y1+Y2; Zmix=Z1+Z2

Then mixed, xmix=Xmix/(Xmix+Ymix+Zmix)

ymix=Ymix/(Xmix+Ymix+Zmix)

Φmix=Ymix.

Among them, X1, Y1, and Z1 are the tristimulus values corresponding to the first color light, and X2, Y2, and Z2 are the tristimulus values corresponding to the second color light. xmix and ymix are the color coordinate points obtained by mixing, that is, the x value and y value of the intermediate color coordinate point. Φmix is the luminous flux obtained by mixing (ie, lumen value). Therefore, when the target color coordinate point, the first color coordinate point and the second color coordinate point are known, the mixing ratio of the first color light and the second color light can be calculated.

In one embodiment, the first color light may be warm white light (for example, a color light with a color temperature of 2700K), and the second color light may be cold white light (for example, a color light with a color temperature of 6500K). Figure 3A is a schematic diagram of the mixing of warm white light and cool white light in an embodiment. As shown in Figure 3A, the intermediate color light obtained by mixing two colors can only be on a straight line with two points (the line where the cross in the figure is). Therefore, when the target color coordinate point is outside the two-point straight line, the obtained first lumen value mixing ratio cannot be very accurate, so that the intermediate color light obtained by subsequent mixing and the target color light will have a certain color tolerance, such as 3B The figure is a schematic diagram of the mixing ratios corresponding to different color temperatures obtained by mixing, that is, different mixing ratios result in different mixing coordinate points. The abscissa system in the figure is represented by color temperature, and different color temperatures correspond to different color coordinate points.

Step 106: Determine an intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio.

Among them, the intermediate color coordinate point refers to the color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the "first lumen value mixing ratio". Due to the two-color mixing The intermediate color light can only be on the two-point straight line. If the target color coordinate point is not on the two-point straight line, then the intermediate color coordinate point of the obtained intermediate color light will have a certain deviation from the target color coordinate point, so it is necessary to calculate the corresponding intermediate color light separately Intermediate color coordinate point.

Step 108: Determine the first compensation color light and the second compensation color light matching the middle color coordinate point according to the middle color coordinate point.

Among them, after obtaining the intermediate color coordinate points corresponding to the intermediate color light, in order to reduce the color tolerance, it is necessary to compensate the intermediate color light to make it the target color light. According to the intermediate color coordinate point of the intermediate color light, the first compensation color light and the second compensation color light that match the intermediate color coordinate point are selected. The first compensation color light and the second compensation color light can be red, green, blue and other basic color lights. Of course, other color lights can also be selected. As long as the first compensation color light, the second compensation color light, and the first color light and the second color light are selected The determined color gamut includes the target color coordinate point and the intermediate color coordinate point, which can be mixed to the target color light. In one embodiment, according to the positional relationship between the intermediate color coordinate point and the target color coordinate point, two color lights are selected from the three basic color lights of red, green and blue as the first compensation color light and the second compensation color light respectively.

Step 110: Perform a compensation calculation on the intermediate color light according to the first compensation color light and the second compensation color light, and determine the second lumen value mixing ratio corresponding to the first compensation color light, the second compensation color light and the intermediate color light when mixed to the target color coordinate point.

Among them, after determining the first compensation color light and the second compensation color light, the first compensation color coordinate point corresponding to the first compensation color light is obtained, and the second compensation color coordinate point corresponding to the second compensation color light is obtained according to the first compensation color coordinate point , The second compensation color coordinate point and the intermediate color coordinate point are calculated to obtain the mixing ratio corresponding to the first compensation color light, the second compensation color light and the intermediate color light when it is mixed to the target color coordinate point, that is, the second lumen value mixing ratio. According to the mixing ratio of the second lumen value, the first compensation color light, the second compensation color light and the intermediate color light can be mixed to obtain the target color light corresponding to the target color coordinate point. The color tolerance of the target color light can be reduced to within 1SCDM, and the human eye cannot feel the existence of the color tolerance, which greatly improves the effect of light mixing.

In the above-mentioned lighting mixing calculation method, first, the first lumen value mixing ratio of the first color light and the second color light is determined according to the target color coordinate point, and then the intermediate color light is obtained by mixing the first color light and the second color light. There is a large color tolerance, so continue to match the first compensation color light and the second compensation color light according to the intermediate color coordinate point, and then perform the compensation calculation on the intermediate color light, and determine the first compensation when mixed to the target color coordinate point The color light, the second compensation color light and the second lumen value mixing ratio corresponding to the intermediate color light. Mixing the first color light, the second color light, the first compensation color light and the second compensation color light according to the first lumen value mixing ratio and the second lumen value mixing ratio can completely mix to the target color coordinate point, greatly reducing the color volume Poor, improve the light mixing effect.

In one embodiment, the determining the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point includes: acquiring the third color coordinate point and the fourth color light corresponding to the third color light The corresponding fourth color coordinate point and the fifth color coordinate point corresponding to the fifth color light; the target is determined according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point The color gamut range where the color coordinate point is located; according to the color gamut range, two color lights are selected from the third color light, the fourth color light, and the fifth color light as the first compensation color light and the second compensation color light.

Among them, the third color light, the fourth color light, and the fifth color light constitute a large color gamut area, the intermediate color coordinate point falls within the large color gamut area, and the target color coordinate point also falls within the large color gamut area. In order to compensate the intermediate color light to obtain the target color light, it is first necessary to determine which small color gamut the target color light falls into. According to the color coordinate points corresponding to the third color light, the fourth color light, the fifth color light and the intermediate color light, The large color gamut area is divided into three small color gamut ranges. In one embodiment, it is a schematic diagram of three small color gamut ranges. As shown in Figure 4, the three small color gamut ranges are three Angular RBM, triangular RGM and triangular BGM. In order to compensate the intermediate color light to obtain the target color light, it is necessary to determine which small color gamut the target color light falls into, and then select two color lights from the three color lights as the first compensation color light and the second compensation color light according to the color gamut range . For example, if it falls within the RBM range in the figure, then R and B are selected as the first compensation color light and the second compensation color light, respectively.

In one embodiment, the determining the color gamut range where the target color coordinate point is located according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, and the intermediate color coordinate point includes: Calculate the triangle area composed of any three points among the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point, and the target color coordinate point; The target triangle area matched by the target color coordinate point; the target triangle area is taken as the color gamut range corresponding to the target color coordinate point.

Among them, in order to calculate the color gamut range corresponding to the target color coordinate point, the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point and the target color coordinate point are calculated separately. For the area of the triangle, choose 3 out of 5 points to form a triangle, and you can get 10 triangles by permutation and combination, that is, calculate the area of these 10 triangles separately.

In one embodiment, the third color light, the fourth color light, and the fifth color light are three basic colors of red R, green G, and blue B, respectively. Referring to Fig. 4, E represents the target color coordinate point of the target color light, and M represents the intermediate color coordinate point of the intermediate color light obtained by mixing. Assuming that E falls into the triangular BGM, then it must be obtained: triangular BEG area + triangular GEM area + triangular BEM area = triangular BGM area. Therefore, the target triangle area matching the target color coordinate point can be obtained according to the relationship between the calculated areas of the triangles. The target triangle area is taken as the color gamut range corresponding to the target color coordinate point.

In one embodiment, the compensation calculation is performed on the intermediate color light according to the first compensation color light and the second compensation color light, and it is determined that the first compensation color light and the second compensation color light are mixed to the target color coordinate point. The mixing ratio of the second lumen value corresponding to the compensation color light and the intermediate color light includes: obtaining a first compensation color coordinate point of the first compensation color light, and obtaining a second compensation color coordinate point of the second compensation color light; When the first compensation color coordinate point, the second compensation color coordinate point, and the intermediate color coordinate point are determined to be mixed to the target color coordinate point, the first compensation color light, the second compensation color light, and the intermediate color light correspond to The second lumen mixing ratio.

Among them, after determining the first compensation color light and the second compensation color light, the first compensation color coordinate points corresponding to the first compensation color light are obtained respectively, and the second compensation color coordinate points corresponding to the second compensation color light are obtained, and then the target The color coordinate point is used as the target point, and the first compensation color light, the second compensation color light, and the intermediate color light are used as the color lights of the known coordinates. Then, the first compensation color light, the second compensation color light and the second color light of the intermediate color light can be obtained by calculation. Lumen mixing ratio. As long as the light is mixed according to the second lumen value mixing ratio, the target color light corresponding to the target color coordinate point can be obtained.

In one embodiment, the above-mentioned lighting mixing calculation method further includes: acquiring the color temperature corresponding to the target color coordinate point, and acquiring the first color light, the second color light, the first compensation color light, and the second compensation color light corresponding to the target color light. The mixing ratio between the color lights; storing the color temperature and the corresponding mixing ratio in association.

Among them, after obtaining the target color coordinate point, obtain the color temperature corresponding to the target color coordinate point, and then obtain the mixture of the first color light, the second color light, the first compensation color light, and the second compensation color light corresponding to the target color light proportion. That is, according to the first lumen value mixing ratio and the second lumen value mixing ratio, the final mixing ratio among the first color light, the second color light, the first compensation color light, and the second compensation color light can be calculated. Store the color temperature in association with the corresponding mixing ratio. When the subsequent need to obtain the color temperature When corresponding to the target color light, obtain the mixing ratio corresponding to the color temperature, and then mix the first color light, the second color light, the first compensation color light, and the second compensation color light according to the mixing ratio, so as to obtain the target color light corresponding to the color temperature .

In one embodiment, the above-mentioned lighting mixing calculation method further includes: determining a target color temperature corresponding to the current lighting according to a preset condition, and determining a color temperature corresponding to the target color temperature according to the corresponding relationship between the color temperature and the mixing ratio. The target mixing ratio of; mixing the first color light, the second color light, the first compensation color light, and the second compensation color light according to the target mixing ratio to obtain the target color light corresponding to the target color temperature.

Among them, in a lighting application scene, in order to enable the light of the lighting to change over time, or to automatically adjust with the outside light intensity, it is necessary to determine the color temperature corresponding to the current lighting immediately. For example, suppose that in order to make the light of the illumination change over time, for example, set the color temperature of 8-9 o'clock in the morning to 2700K, and the color temperature of 9-10 o'clock to 3000K, etc., then when the current time is obtained, you can Determine the target color temperature corresponding to the current lighting. Then, the target mixing ratio corresponding to the target color temperature can be determined according to the corresponding relationship between the prestored color temperature and the mixing ratio, and then the first color light, the second color light, the first compensation color light, and the second compensation color light can be mixed according to the target mixing ratio. The corresponding target shade.

In one embodiment, the determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio includes: obtaining a target lumen value, and according to the target The mixing ratio of the lumen value and the first lumen value determines the first lumen value corresponding to the first color light and the second lumen value corresponding to the second color light; according to the first lumen value and the second lumen value The value determines the intermediate color coordinate point corresponding to the intermediate color light by mixing the first color light and the second color light.

Among them, the set target lumen value is obtained, and when the mixing ratio of the first lumen value is known, the lumen value corresponding to the first color light and the lumen value corresponding to the second color light can be determined, and then mixed to obtain the intermediate color Light. Since only the ratio of the lumen value of the first color light and the second color light can be calculated according to the first color coordinate point, the second color coordinate point and the target color coordinate point, the first color light can be calculated after the target lumen value is given And the specific lumen value of the second color light, and then the intermediate color coordinate point corresponding to the intermediate color light obtained by calculating and mixing the first lumen value and the second lumen value can be calculated.

In one embodiment, the first lumen value mixing ratio and the second lumen value mixing ratio are calculated by the above-mentioned lighting mixing calculation method, and the first color can be obtained according to the first lumen value mixing ratio and the second lumen value mixing ratio. The mixing ratios corresponding to the light, the second color light, the first compensation color light, and the second compensation color light, and guiding the actual light mixing according to the mixing ratio can greatly reduce the color tolerance of the obtained target color light.

In an experimental verification, by dividing by 256bit, using RGBWW (R red light, G green light, B blue light, W warm white light and W cold white light) 5 color temperature LED with 125bits as the benchmark data, by using 0- The 255 controller divides the RGBWW5 LEDs into the required current value using the principle of PWM (Pulse Width Modulation). After passing through the LED, the required lumen value is emitted. Then adjust the target color light according to the lumen value ratio of the five color lights we set. The color coordinate points measured by using the integrating sphere are compared with the target color coordinate points, and it is found that the two are very close. Figure 5 shows a schematic diagram of the results of experimental verification of the illumination mixing calculation method in an embodiment. , The color coordinate point (star point) obtained by the experiment basically coincides with the target color coordinate point (circle point), and the color tolerance is within 1SCDM. The color tolerance is used to characterize the difference between the x and y values of the photochromic electrical detection system and the standard light source. The smaller the value, the higher the accuracy. The color tolerance is the distance of the measured LED light source coordinate value (x1, y1) from the target value of the standard chromaticity coordinate. SCDM can be obtained using the following formula:

Wherein, △ x value x1 error relative to the target value, △ y is the value of y1 with respect to the target value of the error. g11, g12 and g22 are coefficients determined by standard colors.

As shown in Figure 6, it is an embodiment in which two-color light and five-color light are used (actually, four-color light is used. The first compensation color light and the second compensation color light system are selected from three basic colors (red, green, blue) as needed. The 2 selected in )) is a schematic diagram of the theoretical comparison of the mixing and the comparison of the actual results measured by the integrating sphere.

The above-mentioned lighting mixing calculation method can accurately calculate the mixing ratio of the 4 color lights (the first color light, the second color light, the first compensation color light, and the second compensation color light), and perform the color mixing in actual applications according to the calculated mixing ratio The color tolerance of the obtained target color light is less than 1SCDM, which greatly reduces the color tolerance and improves the color mixing effect. The lighting mixing calculation method is universal and applicable to any lighting products.

As shown in Figure 7, an illumination light mixing calculation device is proposed. The device includes: a coordinate point acquisition module 702 for acquiring a first color coordinate point corresponding to a first color light, and a second color light corresponding to a second color light. Color coordinate points; ratio calculation module 704, used to obtain target color coordinate points, according to the target color coordinate point, the first color coordinate point and the second color coordinate point to calculate the first color light and The first lumen value mixing ratio of the second color light; the coordinate point determination module 706 is used to determine the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio Compensation color light determination module 708, for determining the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point; The ratio determination module 710 is configured to perform compensation calculation on the intermediate color light according to the first compensation color light and the second compensation color light, and determine when the first compensation color light and the second color light are mixed to the target color coordinate point. The second lumen value mixing ratio corresponding to the compensation color light and the intermediate color light.

In one embodiment, the compensation color light determination module is further used to obtain the third color coordinate point corresponding to the third color light, the fourth color coordinate point corresponding to the fourth color light, and the fifth color coordinate point corresponding to the fifth color light. Determine the color gamut range where the target color coordinate point is located according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point; according to the color gamut range from the first Two color lights are selected from three color light, fourth color light, and fifth color light as the first compensation color light and the second compensation color light.

In one embodiment, the compensation color light determination module is further used to calculate the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point, and the target color coordinate point. The area of a triangle formed by any three points; the area of the target triangle matching the target color coordinate point is determined according to the calculated area of each triangle; the target triangle area is taken as the color gamut range corresponding to the target color coordinate point.

In one embodiment, the ratio determination module is further configured to obtain a first compensation color coordinate point of the first compensation color light, and obtain a second compensation color coordinate point of the second compensation color light; The compensation color coordinate point, the second compensation color coordinate point, and the intermediate color coordinate point determine the second lumen value corresponding to the first compensation color light, the second compensation color light, and the intermediate color light when mixed to the target color coordinate point The mixing ratio.

As shown in Figure 8, in one embodiment, the above-mentioned lighting mixing calculation device further includes: The storage module 712 is used to obtain the color temperature corresponding to the target color coordinate point, obtain the mixing ratio between the first color light, the second color light, the first compensation color light, and the second compensation color light corresponding to the target color light, and The color temperature is stored in association with the corresponding mixing ratio.

As shown in Figure 9, in one embodiment, the above-mentioned lighting mixing calculation device further includes: a target mixing ratio determining module 714, configured to determine the target color temperature corresponding to the current lighting according to a preset condition, and according to the color temperature and The corresponding relationship between the mixing ratios determines a target mixing ratio corresponding to the target color temperature; a mixing module 716 for mixing the first color light, the second color light, and the first compensation according to the target mixing ratio The color light and the second compensation color light are used to obtain the target color light corresponding to the target color temperature.

In one embodiment, the determining coordinate point determination module is further used to obtain a target lumen value, and determine the first lumen value and the first lumen value corresponding to the first color light according to the mixing ratio of the target lumen value and the first lumen value. The second lumen value corresponding to the second color light; and the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light is determined according to the first lumen value and the second lumen value.

Figure 10 shows an internal structure diagram of a computer device in an embodiment. The computer equipment can be a server or a terminal. The server can be a server, a server cluster composed of multiple servers, or a cloud server (cloud server). The terminal may be a desktop terminal or a mobile terminal, and the mobile terminal may specifically be one of a mobile phone, a notebook computer, a tablet computer, and a smart lamp. As shown in Figure 10, the computer equipment includes a processor, memory, and network interface connected by a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The The non-volatile storage medium of the computer equipment stores an operating system and can also store a computer program. When the computer program is executed by the processor, the processor can realize the lighting mixing calculation method. A computer program can also be stored in the internal memory, and when the computer program is executed by the processor, the processor can execute the lighting mixing calculation method. The network interface is used to communicate with the outside world. Those skilled in the art can understand that the structure shown in Figure 10 is only a block diagram of part of the structure related to the present invention, and does not constitute a limitation on the computer equipment to which the present invention is applied. The specific computer The device may include more or fewer parts than shown in the figures, or combine certain parts, or have a different arrangement of parts.

In one embodiment, the lighting mixing calculation method provided by the present invention can be implemented in the form of a computer program, and the computer program can be run on the computer device as shown in FIG. 10. The memory of the computer equipment can store various program templates that compose the lighting mixing calculation device. For example, the coordinate point acquisition module 702, the ratio calculation module 704, the coordinate point determination module 706, the compensation color light determination module 708, and the ratio determination module 710.

As shown in Figure 11, in one embodiment, it is an application scenario diagram of the lighting mixing calculation method. The figure includes three application scenarios. One is that the lamp includes a calculation module, and the lamp receives each LED input from the input unit. For the color coordinate points and target color coordinate points corresponding to the light source, the calculation module in the lamp can calculate the corresponding mixing ratio of the target color coordinate point, and then call the driving module according to the mixing ratio, and the driving module controls 5 The mixing ratio of the LED light source (there are actually 4 LED light sources involved, that is, the mixing ratio of the remaining one is 0), and the target color light is finally mixed by controlling the mixing ratio.

One is to use a server (such as a cloud server) to perform light mixing calculation. The server obtains the color coordinate points and target color coordinate points corresponding to each LED light source input by the input unit, and calculates The mixing ratio corresponding to the target color coordinate point is sent to the lamp through the communication module, and then the lamp is realized by controlling the LED light source through the driving module.

The last one is to use the terminal to perform light mixing calculation. The terminal receives the color coordinate points and target color coordinate points of each LED light source input by the input unit, calculates the mixing ratio corresponding to the target color coordinate point, and then uses the obtained mixing ratio in the same way. It is sent to the lamp by the communication module, and then the lamp is realized by the driving module to control the LED light source.

A computer device includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor executes the following steps: obtaining a first color light corresponding to a first color light. Color coordinate point, obtain the second color coordinate point corresponding to the second color light; obtain the target color coordinate point, calculate the first color coordinate point according to the target color coordinate point, the first color coordinate point and the second color coordinate point The first lumen value mixing ratio of the first color light and the second color light; determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio; The coordinate point determines the first compensation color light and the second compensation color light that match the intermediate color coordinate point; the compensation calculation is performed on the intermediate color light according to the first compensation color light and the second compensation color light, and it is determined to be mixed to the target The color coordinate point is the mixing ratio of the second lumen value corresponding to the first compensation color light, the second compensation color light and the intermediate color light.

In one embodiment, the determining the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point includes: acquiring the third color coordinate point and the fourth color light corresponding to the third color light The corresponding fourth color coordinate point and the fifth color coordinate point corresponding to the fifth color light; the target is determined according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point The color gamut range where the color coordinate point is located; according to the color gamut range, two color lights are selected from the third color light, the fourth color light, and the fifth color light as the first compensation color light and the second compensation color light.

In one embodiment, the determining the color gamut range where the target color coordinate point is located according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, and the intermediate color coordinate point includes: Calculate the triangle area composed of any three points among the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point, and the target color coordinate point; The target triangle area matched by the target color coordinate point; the target triangle area is taken as the color gamut range corresponding to the target color coordinate point.

In one embodiment, the compensation calculation is performed on the intermediate color light according to the first compensation color light and the second compensation color light, and it is determined that the first compensation color light and the second compensation color light are mixed to the target color coordinate point. The mixing ratio of the second lumen value corresponding to the compensation color light and the intermediate color light includes: obtaining a first compensation color coordinate point of the first compensation color light, and obtaining a second compensation color coordinate point of the second compensation color light; When the first compensation color coordinate point, the second compensation color coordinate point, and the intermediate color coordinate point are determined to be mixed to the target color coordinate point, the first compensation color light, the second compensation color light, and the intermediate color light correspond to The second lumen mixing ratio.

In one embodiment, when the above computer program is executed by the processor, it is further used to perform the following steps: obtain the color temperature corresponding to the target color coordinate point, and obtain the first color light and the second color light corresponding to the target color light , The mixing ratio between the first compensation color light and the second compensation color light; and storing the color temperature and the corresponding mixing ratio in association.

In one embodiment, when the above computer program is executed by the processor, it is further used to perform the following steps: determine the target color temperature corresponding to the current lighting according to a preset condition, and according to the correspondence between the color temperature and the mixing ratio Relationship, determine the target mixing ratio corresponding to the target color temperature; mix the first color light, the second color light, the first compensation color light, and the second compensation color light according to the target mixing ratio to obtain the target color temperature Target color light.

In one embodiment, the determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio includes: obtaining a target lumen value, and according to the target The mixing ratio of the lumen value and the first lumen value determines the first lumen value corresponding to the first color light and the second lumen value corresponding to the second color light; according to the first lumen value and the second lumen value The value determines the intermediate color coordinate point corresponding to the intermediate color light by mixing the first color light and the second color light.

A computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the processor executes the following steps: acquiring a first color coordinate point corresponding to a first color light, and acquiring a second color light corresponding The second color coordinate point; the target color coordinate point is obtained, and the first color light and the second color light are calculated according to the target color coordinate point, the first color coordinate point, and the second color coordinate point Lumen value mixing ratio; determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio; determining to match the intermediate color coordinate point according to the intermediate color coordinate point The first compensation color light and the second compensation color light; the intermediate color light is compensated according to the first compensation color light and the second compensation color light, and the first compensation color light is determined to be mixed to the target color coordinate point , The second compensation color light and the second lumen value mixing ratio corresponding to the intermediate color light.

In one embodiment, the determining the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point includes: acquiring the third color coordinate point and the fourth color light corresponding to the third color light The corresponding fourth color coordinate point and the fifth color coordinate point corresponding to the fifth color light; the target is determined according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point The color gamut range where the color coordinate point is located; according to the color gamut range, two color lights are selected from the third color light, the fourth color light, and the fifth color light as the first compensation color light and the second compensation color light.

In one embodiment, the determining the color gamut range where the target color coordinate point is located according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, and the intermediate color coordinate point includes: Calculate the triangle area composed of any three points among the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point, and the target color coordinate point; The target triangle area matched by the target color coordinate point; the target triangle area is taken as the color gamut range corresponding to the target color coordinate point.

In one embodiment, the compensation calculation is performed on the intermediate color light according to the first compensation color light and the second compensation color light, and it is determined that the first compensation color light and the second compensation color light are mixed to the target color coordinate point. The mixing ratio of the second lumen value corresponding to the compensation color light and the intermediate color light includes: obtaining a first compensation color coordinate point of the first compensation color light, and obtaining a second compensation color coordinate point of the second compensation color light; When the first compensation color coordinate point, the second compensation color coordinate point, and the intermediate color coordinate point are determined to be mixed to the target color coordinate point, the first compensation color light, the second compensation color light, and the intermediate color light correspond to The second lumen mixing ratio.

In one embodiment, when the above computer program is executed by the processor, it is further used to perform the following steps: obtain the color temperature corresponding to the target color coordinate point, and obtain the first color light and the second color light corresponding to the target color light , The mixing ratio between the first compensation color light and the second compensation color light; and storing the color temperature and the corresponding mixing ratio in association.

In one embodiment, when the above computer program is executed by the processor, it is further used to perform the following steps: determine the target color temperature corresponding to the current lighting according to a preset condition, and according to the correspondence between the color temperature and the mixing ratio Relationship, determine the target mixing ratio corresponding to the target color temperature; mix the first color light, the second color light, the first compensation color light, and the second compensation color light according to the target mixing ratio to obtain the target color temperature Target color light.

In one embodiment, the determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio includes: obtaining a target lumen value, and according to the target The mixing ratio of the lumen value and the first lumen value determines the first lumen value corresponding to the first color light and the second lumen value corresponding to the second color light; according to the first lumen value and the second lumen value The value determines the intermediate color coordinate point corresponding to the intermediate color light by mixing the first color light and the second color light.

Those with ordinary knowledge in the art can understand that all or part of the processes in the above-mentioned implementation methods can be completed by instructing the relevant hardware by a computer program, and the program can be stored in a non-volatile computer readable In the storage medium, when the program is executed, it may include the processes of the implementation manners of the above methods. Among them, any reference to memory, storage, database or other media used in the various embodiments provided by the present invention may include non-volatile and/or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered as the range described in this specification.

The above-mentioned embodiments only express a few embodiments of the present invention, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the present invention. It should be pointed out that for those with ordinary knowledge in the field, without departing from the concept of the present invention, multiple modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the scope of protection of the patent for the present invention shall be subject to the scope of the attached patent application.

102 to 110: steps

Claims (9)

A method for calculating lighting mixing, comprising the following steps: obtaining a first color coordinate point corresponding to a first color light, and obtaining a second color coordinate point corresponding to a second color light; obtaining a target color coordinate point, according to the target color coordinate point, The first color coordinate point and the second color coordinate point are calculated to obtain the first lumen value mixing ratio of the first color light and the second color light; it is determined to mix the first color light and the first color light according to the first lumen value mixing ratio The intermediate color coordinate point corresponding to the intermediate color light obtained by the second color light; the first compensation color light and the second compensation color light that match the intermediate color coordinate point are determined according to the intermediate color coordinate point, including obtaining the third color coordinate point and the second color light corresponding to the third color light The fourth color coordinate point corresponding to the four-color light and the fifth color coordinate point corresponding to the fifth color light; determine the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point The color gamut range where the target color coordinate point is located; and according to the color gamut range, two color lights are selected from the third color light, the fourth color light, and the fifth color light as the first compensation color light and the second compensation color light And according to the first compensation color light and the second compensation color light the intermediate color light compensation calculation, determine the first compensation color light, the second compensation color light and the intermediate color light when mixed to the target color coordinate point The mixing ratio of two lumens. The lighting mixing calculation method according to claim 1, wherein the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point are determined Determine the color gamut range of the target color coordinate point, including the following steps: respectively calculate the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point, the intermediate color coordinate point and the target color coordinate point. The area of the triangle formed by any three points of the triangle; the area of the target triangle matching the target color coordinate point is determined according to the calculated area of each triangle; and the target triangle area is used as the color gamut range corresponding to the target color coordinate point. The lighting mixing calculation method according to claim 1, wherein the intermediate color light is compensated according to the first compensation color light and the second compensation color light, and the first compensation color light, the first compensation color light and the second compensation color light are determined to be mixed to the target color coordinate point. The second compensation color light and the second lumen value mixing ratio corresponding to the intermediate color light include the following steps: obtaining a first compensation color coordinate point of the first compensation color light, and obtaining a second compensation color coordinate point of the second compensation color light ; And according to the first compensation color coordinate point, the second compensation color coordinate point and the intermediate color coordinate point to determine the first compensation color light, the second compensation color light and the intermediate color light when mixed to the target color coordinate point The second lumen value mixing ratio. The lighting mixing calculation method according to claim 1, further comprising the following steps: acquiring the color temperature corresponding to the target color coordinate point, acquiring the first color light, the second color light, and the first compensation color light corresponding to the target color light , The mixing ratio between the second compensation color lights; and storing the color temperature in association with the corresponding mixing ratio. The lighting mixing calculation method described in claim 4 further includes the following steps: Determine the target color temperature corresponding to the current lighting according to preset conditions, determine the target mixing ratio corresponding to the target color temperature according to the corresponding relationship between the color temperature and the mixing ratio; and mixing the first color light, The second color light, the first compensation color light, and the second compensation color light obtain the target color light corresponding to the target color temperature. The lighting mixing calculation method of claim 1, wherein determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio includes the following steps: Obtain a target lumen value, determine the first lumen value corresponding to the first color light and the second lumen value corresponding to the second color light according to the mixing ratio of the target lumen value and the first lumen value; and according to the first lumen value and The second lumen value determines to mix the first color light and the second color light to obtain the intermediate color coordinate point corresponding to the intermediate color light. A lighting mixing calculation device, comprising: a coordinate point acquisition module for acquiring a first color coordinate point corresponding to a first color light, and a second color coordinate point corresponding to a second color light; and a ratio calculation module for Obtain the target color coordinate point, and calculate the mixing ratio of the first lumen value of the first color light and the second color light according to the target color coordinate point, the first color coordinate point and the second color coordinate point; the coordinate point determination mode Group for determining the intermediate color coordinate point corresponding to the intermediate color light obtained by mixing the first color light and the second color light according to the first lumen value mixing ratio; The compensation color light determination module is used to determine the first compensation color light and the second compensation color light that match the intermediate color coordinate point according to the intermediate color coordinate point, including obtaining the third color coordinate point corresponding to the third color light and the first color light corresponding to the fourth color light. The fourth color coordinate point and the fifth color coordinate point corresponding to the fifth color light; determine the target color coordinate point according to the third color coordinate point, the fourth color coordinate point, the fifth color coordinate point and the intermediate color coordinate point And selecting two color lights from the third color light, the fourth color light, and the fifth color light as the first compensation color light and the second compensation color light according to the color gamut range; and the ratio determination mode Group, used to perform compensation calculation on the intermediate color light according to the first compensation color light and the second compensation color light, and determine the corresponding to the first compensation color light, the second compensation color light and the intermediate color light when the target color coordinate point is mixed The second lumen value mixing ratio. A computer device includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the lighting mix according to any one of claims 1 to 6 Light calculation method steps. A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor executes the steps of the lighting mixing calculation method according to any one of claims 1 to 6.

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