CN112601062A - Projection equipment control method, device, medium and electronic equipment - Google Patents
Projection equipment control method, device, medium and electronic equipment Download PDFInfo
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- CN112601062A CN112601062A CN202110197462.7A CN202110197462A CN112601062A CN 112601062 A CN112601062 A CN 112601062A CN 202110197462 A CN202110197462 A CN 202110197462A CN 112601062 A CN112601062 A CN 112601062A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
Abstract
The disclosure relates to a projection device control method, a projection device control apparatus, a medium and an electronic device. The projection light source of the projection device comprises red light, green light, blue light and additional light for improving the projection brightness of the projection device; the method comprises the following steps: acquiring a target chromaticity coordinate of the projection light source in response to receiving a projection instruction; determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table; and adjusting the gain of the RGB channel according to the gain coefficient. Therefore, the gain coefficient of the RGB channel can be rapidly and directly determined according to the target chromaticity coordinate and the color lookup table constructed in advance, so that the gain of the RGB channel is automatically adjusted according to the gain coefficient, the effect of automatically adjusting the color temperature of the projection equipment in place at one time is achieved, and the impression experience of a user is improved.
Description
Technical Field
The present disclosure relates to the field of projection devices, and in particular, to a projection device control method, apparatus, medium, and electronic device.
Background
Compared with a display panel, the color temperature of each projector device in the factory is greatly different due to various factors such as a light source and a light path of the projector device, and even if the projector devices in the same batch are different, the color temperature of the projector devices in the factory is not consistent from the factory to the hands of users even if the color temperature of the projector devices is adjusted before the projector devices are shipped. It is not practical to manually adjust each projection device after the factory sale, and therefore, an efficient color temperature automatic adjusting method is needed to improve the impression experience of users.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a projection device control method, apparatus, medium, and electronic device.
In order to achieve the above object, in a first aspect, the present disclosure provides a projection apparatus control method, a projection light source of the projection apparatus including red light, green light, blue light, and additional light for increasing projection luminance of the projection apparatus, the method comprising:
acquiring a target chromaticity coordinate of the projection light source in response to receiving a projection instruction;
determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table;
and adjusting the gain of the RGB channel according to the gain coefficient.
Optionally, the color look-up table is constructed by:
controlling the projection equipment to respectively project red light, green light, blue light and white light according to any sequence, and acquiring a first color value of the light projected by the projection equipment during each projection;
constructing the color lookup table based at least on each of the first color values.
Optionally, the constructing the color lookup table according to at least each of the first color values includes:
judging whether the RGB color mixing principle is met or not according to each first color value;
and if the RGB color mixing principle is met, constructing the color lookup table according to the first color value of the red light, the first color value of the green light and the first color value of the blue light.
Optionally, the constructing the color lookup table according to at least each of the first color values further includes:
if the RGB color mixing principle is not met, controlling the projection equipment to simultaneously project any two of the red light, the green light and the blue light, and acquiring mixed color values of the two lights projected by the projection equipment;
constructing the color look-up table from the blended color values and each of the first color values.
Optionally, said constructing the color lookup table according to the mixed color values and each of the first color values comprises:
determining a second color value of each of red, green and blue with a saturation of 100% based on the mixed color value and each of the first color values;
and constructing the color lookup table according to the second color values of the red, the green and the blue with the saturation of 100%.
Optionally, the determining, according to the mixed color value and each of the first color values, a second color value of each of red, green, and blue with a saturation of 100%, includes:
determining a third color value of the additional light according to each first color value;
determining additional light distribution coefficients corresponding to the red light, the green light and the blue light respectively according to the mixed color value, the third color value and the first color value of each of the two lights projected by the projection device;
determining a second color value of red with a saturation of 100% according to the third color value, the first color value of red light and the additional light distribution coefficient corresponding to red light, determining a second color value of green with a saturation of 100% according to the third color value, the first color value of green light and the additional light distribution coefficient corresponding to green light, and determining a second color value of blue with a saturation of 100% according to the third color value, the first color value of blue light and the additional light distribution coefficient corresponding to blue light.
In a second aspect, the present disclosure provides a projection device control apparatus, where a projection light source of the projection device includes red light, green light, blue light, and additional light for improving projection brightness of the projection device;
the device comprises:
the acquisition module is used for responding to the received projection instruction and acquiring the target chromaticity coordinate of the projection light source;
the determining module is used for determining the gain coefficient of the RGB channel in the projection equipment according to the target chromaticity coordinate acquired by the acquiring module and a pre-constructed color lookup table;
and the adjusting module is used for adjusting the gain of the RGB channel according to the gain coefficient determined by the determining module.
Optionally, the color lookup table is constructed by a color lookup table construction device;
the color lookup table construction device includes:
the control module is used for controlling the projection equipment to respectively project red light, green light, blue light and white light according to any sequence and acquiring a first color value of the light projected by the projection equipment during each projection;
and the building module is used for building the color lookup table at least according to each first color value.
In a third aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method provided by the first aspect of the present disclosure.
In a fourth aspect, the present disclosure provides an electronic device comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method provided by the first aspect of the present disclosure.
In the technical scheme, when a projection instruction is received, a target chromaticity coordinate of a projection light source of the projection equipment is obtained, wherein the projection light source comprises red light, green light, blue light and additional light for improving the projection brightness of the projection equipment; then, determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table; and finally, adjusting the gain of the RGB channel according to the gain coefficient. Therefore, the gain coefficient of the RGB channel can be rapidly and directly determined according to the target chromaticity coordinate and the color lookup table constructed in advance, so that the gain of the RGB channel is automatically adjusted according to the gain coefficient, the effect of automatically adjusting the color temperature of the projection equipment in place at one time is achieved, and the impression experience of a user is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart illustrating a method of controlling a projection apparatus according to an exemplary embodiment.
FIG. 2 is a flow chart illustrating a method of building a color lookup table according to an exemplary embodiment.
Fig. 3 is a flow diagram illustrating a method of constructing a color lookup table based at least on each first color value according to an exemplary embodiment.
FIG. 4 is a diagram illustrating a sequence of lighting of the lamps when a projection device projects red, green, blue, and white light, according to an exemplary embodiment.
Fig. 5 is a schematic diagram illustrating a lighting sequence of lamps when a projection device projects red, green, blue, and white light according to another exemplary embodiment.
Fig. 6 is a schematic diagram illustrating a lighting sequence of lamps when a projection device projects red, green, blue, and white light according to another exemplary embodiment.
Fig. 7 is a schematic diagram illustrating a lighting sequence of lamps when a projection device projects red, green, blue, and white light according to another exemplary embodiment.
Fig. 8 is a block diagram illustrating a control apparatus of a projection device according to an exemplary embodiment.
Fig. 9 is a block diagram illustrating a color lookup table construction apparatus according to an example embodiment.
FIG. 10 is a block diagram illustrating an electronic device in accordance with an example embodiment.
FIG. 11 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart illustrating a method of controlling a projection apparatus according to an exemplary embodiment. As shown in FIG. 1, the method includes S101-S103.
In S101, in response to receiving a projection instruction, target chromaticity coordinates of a projection light source of a projection apparatus are acquired.
In the present disclosure, the projection apparatus control method may be applied to a projection apparatus, and may also be applied to a terminal (e.g., a server, a smartphone, a tablet computer, etc.) connected to the projection apparatus.
When a user projects a picture through the projection device, the projection instruction may be triggered by a projection button on the projection device, or may be triggered by a remote controller or an intelligent terminal (e.g., a smart phone) communicatively connected to the projection device.
The projection light source of the projection device comprises red light, green light, blue light and additional light for improving the projection brightness of the projection device. The additional light may, for example, be yellow light, i.e. the projection light source of the projection device comprises not only red, green, blue light, but also yellow light.
In addition, the target chromaticity coordinate may be a value currently set by a user, for example, the target chromaticity coordinate may be set by the user through a chromaticity coordinate adjustment button on the projection device, or may be set by a remote controller or a smart terminal (e.g., a smart phone) communicatively connected to the projection device; if the value currently set by the user is not obtained, the value set by the user last time can be determined as the target chromaticity coordinate.
In S102, the gain coefficients of the RGB channels in the projection device are determined according to the target chromaticity coordinates and the pre-constructed color lookup table.
In the present disclosure, the RGB channels include a red (R) channel, a green (G) channel, and a blue (B) channel, so that a gain coefficient of the red (R) channel, a gain coefficient of the green (G) channel, and a gain coefficient of the blue (B) channel can be determined according to color values.
Although the color temperature of the projection equipment is poor in consistency, the projection equipment has good gray scale consistency (the color temperatures are almost close under different brightness) and Gamma (Gamma) characteristics, so that a color Lookup Table (Lookup Table) can be constructed based on the characteristics, and then the gain coefficient of an RGB channel in the projection equipment is determined according to a target chromaticity coordinate and the color Lookup Table.
In S103, the gain of the RGB channel is adjusted according to the gain coefficient.
In the present disclosure, when the gain coefficient of the red (R) channel, the gain coefficient of the green (G) channel, and the gain coefficient of the blue (B) channel are determined through S102, the gain of the red (R) channel in the projection apparatus may be adjusted according to the gain coefficient of the red (R) channel, the gain of the green (G) channel in the projection apparatus may be adjusted according to the gain coefficient of the green (G) channel, and the gain of the blue (B) channel in the projection apparatus may be adjusted according to the gain coefficient of the blue (B) channel.
In the technical scheme, when a projection instruction is received, a target chromaticity coordinate of a projection light source of the projection equipment is obtained, wherein the projection light source comprises red light, green light, blue light and additional light for improving the projection brightness of the projection equipment; then, determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table; and finally, adjusting the gain of the RGB channel according to the gain coefficient. Therefore, the gain coefficient of the RGB channel can be rapidly and directly determined according to the target chromaticity coordinate and the color lookup table constructed in advance, so that the gain of the RGB channel is automatically adjusted according to the gain coefficient, the effect of automatically adjusting the color temperature of the projection equipment in place at one time is achieved, and the impression experience of a user is improved.
The following is a detailed description of the construction of the color lookup table. Specifically, it can be realized by S201 and S202 shown in fig. 2.
In S201, the projection device is controlled to project red light, green light, blue light, and white light, respectively, in an arbitrary order, and a first color value of the light projected by the projection device at each projection is obtained.
In the present disclosure, the first color value may be any one of chromaticity coordinates and luminance in an XYZ color space, RGB data, and XYZ data in an XYZ color space. The XYZ color space is defined by the International lighting association (CIE) in 1931, and is also called CIE 1931.
In addition, the light projected by the projection equipment during each projection can be received through the sensing module, so that the first color value of the light projected each time can be obtained, and then the projection equipment can obtain each first color value through communication with the sensing module. The sensing module can be a color temperature sensor, a camera, an illuminometer, an integrating sphere and the like, and can be connected with the projection equipment through a wireless network or a wired network.
In addition, it should be noted that the projection device may respectively obtain red light, green light, blue light, and white light in any order as long as the corresponding first color value can be obtained. Exemplarily, the projection device may be controlled to project red light, green light, blue light, and white light in sequence, and obtain a first color value of the light projected each time; by way of further example, the projection device may be controlled to project white light, red light, blue light, green light in sequence, and obtain a first color value for each projected light.
In S202, a color look-up table is constructed based on at least each first color value.
In this disclosure, before constructing the color lookup table, if the first color value obtained in the above S201 is the chromaticity coordinate and the luminance, or the RGB data, the first color value may be converted into XYZ data, and then the color lookup table may be constructed according to the XYZ data.
Illustratively, the chromaticity coordinate (1) may be expressed by the following equation (1)x,y) And brightnessLConversion to XYZ data:
illustratively, the RGB data may be converted into XYZ data by the following equation (2):
wherein the content of the first and second substances,
is a transformation matrix.
A detailed description will be given below of an embodiment of constructing the color lookup table based on at least each first color value in S202. Specifically, it can be realized by S2021 and S2022 shown in fig. 3:
in S2021, it is determined whether the RGB color mixing principle is satisfied according to each first color value.
In the present disclosure, the projection light source of the projection apparatus includes not only red light, green light, and blue light, but also additional light. Therefore, when the projection device projects red light, the light source projected by the projection device not only includes red light, but also may include additional light, that is, when the projection device projects red light, not only the red light for projecting red light but also the additional light for projecting additional light may be on; similarly, when the projection device projects green light, the light source projected by the projection device may include not only green light but also additional light, that is, when the projection device projects green light, not only the green light for projecting green light but also the additional light may be on; when the projection device projects blue light, the light source projected by the projection device not only includes the blue light, but also may include additional light, that is, when the projection device projects blue light, not only the blue light for projecting blue light but also the additional light may be turned on.
Exemplarily, the additional light is yellow light, and correspondingly, the additional lamp is a yellow lamp; as shown in the first drawing on the left side of fig. 4, when the projection device projects white light (i.e., displays white light), the red light, the green light, the blue light and the yellow light are alternately switched on and off rapidly within 1 frame, and the switching speed is fast, so that the human eye cannot see the alternate process, and the light mixed by four colors of red light, green light, blue light and yellow light, i.e., white light, is seen. As shown in the second left-hand diagram of FIG. 4, when the projection device projects red light (i.e., displays red light), the red light is turned on for the first 1/4 frames and the yellow light is turned on for 3/4-5/6 frames; as shown in the third left-hand diagram of FIG. 4, when the projection device projects green light (i.e., displays green light), the green light is turned on at 1/4 frames in time-1/2 frames, and the yellow light is turned on at 5/6 frames in time-11/12 frames; as shown in the fourth left-hand graph of FIG. 4, when the projection device projects blue light (i.e., blue light is displayed), the blue light is turned on at 1/2 frames in time 3/4 frames, and the yellow light is turned on at 11/12 frames in time 1 frame. When the red light is projected, the duration of the yellow light is on, and the sum of the duration of the green light is projected, the duration of the yellow light is on, and the duration of the blue light is projected, the duration of the yellow light is on is equal to the duration of the white light is projected, and the duration of the yellow light is on.
Further illustratively, the additional light is yellow light, and as shown in the first left diagram of fig. 5, when the projection apparatus projects white light, the red light, the green light, the blue light, and the yellow light are alternately switched on and off at a high speed for 1 frame, and then the human eye sees white light. As shown in the second left-hand diagram of FIG. 5, when the projection device projects red light, the red light is on for the first 1/4 frames of time and the yellow light is off; as shown in the third left diagram in fig. 5, when the projection device projects green light, the green light is turned on within the time of 1/4 frames to 1/2 frames, and the yellow light is not turned on; as shown in the fourth drawing on the left side of FIG. 5, when the projection device projects blue light, the blue light is turned on within the time of 1/2 frames to 3/4 frames, and the yellow light is not turned on.
As another example, when the projection device projects white light, the red, green, blue, and yellow lamps are alternately turned on and off at a high speed for 1 frame as shown in the first diagram on the left side of fig. 6, and the white light is seen by the human eye. As shown in the second left-hand diagram of FIG. 6, when the projection device projects red light, the red light is on for the first 1/4 frames and the yellow light is on for 3/4-5/6 frames; as shown in the third left diagram in fig. 6, when the projection device projects green light, the green light is turned on within the time of 1/4 frames to 1/2 frames, and the yellow light is not turned on; as shown in the fourth drawing on the left side of FIG. 6, when the projection device projects blue light, the blue light is turned on within the time of 1/2 frames to 3/4 frames, and the yellow light is not turned on.
As another example, when the projection device projects white light, the red, green, blue, and yellow lamps are alternately turned on and off at a high speed for 1 frame as shown in the first diagram on the left side of fig. 7, and the white light is seen by the human eye. As shown in the second left-hand diagram of FIG. 7, when the projection device projects red light, the red light is on for the first 1/4 frames of time and the yellow light is off; as shown in the third left diagram of FIG. 7, when the projection device projects green light, the green light is turned on within 1/4 frames of time-1/2 frames of time, and the yellow light is turned on within 5/6 frames of time-11/12 frames of time; as shown in the fourth left-hand diagram of FIG. 7, when the projection device projects blue light, the blue light is turned on at 1/2-3/4 frames of time, and the yellow light is turned on at 11/12-1 frame of time.
When the sum of the duration of turning on the additional lamp and the duration of turning on the additional lamp when the red light is projected, the duration of turning on the additional lamp and the duration of turning on the green light is projected, the duration of turning on the additional lamp when the blue light is projected, and the duration of turning on the additional lamp are equal to the duration of turning on the white light, the RGB color mixing principle is satisfied, for example, in the case shown in fig. 4, the RGB color mixing principle is satisfied; otherwise, the RGB color mixing principle is not satisfied, for example, the case shown in fig. 5, the case shown in fig. 6, and the case shown in fig. 7, the RGB color mixing principle is not satisfied.
Because it cannot be directly determined by naked eyes whether the RGB color mixing principle is satisfied, it is necessary to collect each first color value and determine whether the RGB color mixing principle is satisfied according to the first color value, that is, determine whether the following equation (3) is satisfied:
wherein the content of the first and second substances,X R x data in a first color value for red light projected by a projection device;Y R y data in a first color value of red light projected by a projection device;Z R z data in a first color value for red light projected by the projection device;X G x data in a first color value for green light projected by the projection device;Y G y data in a first color value for green light projected by the projection device;Z G z data in a first color value for green light projected by the projection device;X B x data in a first color value for blue light projected by a projection device;Y B y data in a first color value of the blue light projected by the projection device; z B Z data in a first color value for blue light projected by the projection device;X w x data in a first color value of white light projected by a projection device;Y w y data in a first color value of white light projected by a projection device;Z w z data in a first color value of white light projected by the projection device.
If the RGB color mixing principle is satisfied, execute S2022; if the RGB color mixing principle is not satisfied, S2023 and S2024 are performed.
Returning to fig. 3, in S2022, a color lookup table is constructed from the first color value of red, the first color value of green, and the first color value of blue.
In the implementation mode, the color lookup table can be constructed by detecting the first color value of red light, the first color value of green light, the first color value of blue light and the first color value of white light, and then the gain of the RGB channel of the projection device can be adjusted according to the color lookup table and the target chromaticity coordinate, which is convenient and fast.
In S2023, the projection device is controlled to project any two of red light, green light, and blue light at the same time, and a mixed color value of the two lights projected by the projection device is acquired.
In the present disclosure, the mixed color value may be any one of chromaticity coordinates and luminance in an XYZ color space, RGB data, and XYZ data in an XYZ color space.
Illustratively, the projection device is controlled to project red light and green light simultaneously, and mixed color values of the red light and the green light projected by the projection device are obtained, wherein the mixed light of the red light and the green light is yellow light, that is, the color value of the yellow light is obtained.
By way of another example, the projection device is controlled to project red light and blue light simultaneously, and mixed color values of the red light and the blue light projected by the projection device are obtained, wherein the mixed light of the red light and the blue light is purple light, that is, color values of the purple light are obtained.
By way of another example, the projection device is controlled to project blue light and green light simultaneously, and mixed color values of the blue light and the green light projected by the projection device are obtained, wherein the mixed light of the blue light and the green light is cyan light, that is, color values of the cyan light are obtained.
In addition, the mixed color value can be acquired through the sensing module.
In S2024, a color lookup table is constructed from the blended color values and each of the first color values.
In the present disclosure, before constructing the color lookup table, if the mixture color value acquired in the above S2023 is the chromaticity coordinate and the luminance, it may be converted into XYZ data by the above equation (1), or if the mixture color value acquired in the above S2023 is RGB data, it may be converted into XYZ data by the above equation (2) first; then, a color lookup table is constructed based on the converted XYZ data.
In the implementation mode, the color lookup table can be constructed by detecting the first color value of red light, the first color value of green light, the first color value of blue light, the first color value of white light and the mixed color value, and then the gain of the RGB channel of the projection equipment can be adjusted according to the color lookup table and the target chromaticity coordinate, so that the method is convenient and fast.
A detailed description will be given below of an embodiment of constructing the color lookup table based on the first color value of red light, the first color value of green light, and the first color value of blue light in S2022. Specifically, this can be achieved by the following steps 1) and 2):
1) the first color value of red, the first color value of green, and the first color value of blue were set as the second color values of red, green, and blue with a saturation of 100%, respectively (i.e., X data in the second color value of red with a saturation of 100%)X R (N) And Y data in a second color value of red with saturation of 100%Y R (N) Z data in a second color value of 100% saturation of redZ R (N) X data in a second color value of green with saturation of 100%X G (N) And Y data in a second color value of green with saturation of 100%Y G (N) Z data in a second color value of green with saturation of 100%Z G (N) X data in a second color value of blue with saturation of 100%X B (N) Y data in a second color value of blue with saturation of 100%Y B (N) Z data in a second color value of blue with saturation of 100%Z B (N) Where N is the maximum value of the data level value IRE, e.g., N =256, N =1024, etc., IRE is [0, N]Any integer within the range);
2) since the brightness of the projection light source generally conforms to the Gamma characteristic, the second color values of the remaining saturation levels can be calculated based on the Gamma, so that the color lookup table can be obtained.
For example, the second color values of the remaining saturations can be calculated by the following equations (4) - (6):
wherein Gamma is the Gamma value of the projection device, e.g., 2.2 X R (IRE) X data for red with saturation IRE/N, IRE is the data level value, and IRE is [0, N-1 ]]Any integer within the range;Y R (IRE) Y data for red with saturation IRE/N;Z R (IRE) Z data for red with IRE/N saturation;X G (IRE) X data for green with saturation IRE/N;Y G (IRE) Y data for green with saturation IRE/N;Z G (IRE) Z data for green with IRE/N saturation;X B (IRE) X data for blue color with saturation IRE/N;Y B (IRE) Y data for blue color with saturation IRE/N;Z B (IRE) The Z data is blue with the saturation IRE/N.
Exemplarily, N =1024, the color look-up table obtained by the above method is shown in table 1 below:
TABLE 1 color lookup table
The following description will be made in detail with respect to an embodiment of constructing the color lookup table based on the mixture color value and each of the first color values in S2024. Specifically, the method can be realized by the following steps (1) and (2):
(1) from the mixed color value and each of the first color values, a second color value of each of red, green and blue is determined which has a saturation of 100%.
Specifically, the second color values of red, green, and blue with a saturation of 100% can be determined through steps (i) to (ii):
-determining a third color value of the additional light on the basis of each first color value.
For example, the third color value of the additional light may be determined from each first color value by the following equation (7):
wherein the content of the first and second substances,X Y x data in a third color value for the additional light;Y Y y data in a third color value for the additional light;Z Y is the Z data in the third color value of the additional light.
And determining additional light distribution coefficients corresponding to the red light, the green light and the blue light according to the mixed color value, the third color value and the first color value of each of the two lights projected by the projection equipment.
In the present disclosure, the additional light distribution coefficient corresponding to red light represents a coefficient of a proportionally decreased portion of Y data of a first color value of white light when a lighting time period of a red light is shortened in a case where white light is projected; the additional light distribution coefficient corresponding to the green light represents a coefficient of a part of equal proportion descending of Y data of a first color value of the white light when the starting time of a green light is shortened under the condition of projecting the white light; the additional light distribution coefficient corresponding to the blue light represents a coefficient of a part of the Y data of the first color value of the white light which is reduced in equal proportion when the on-time of the blue light is shortened under the condition of projecting the white light.
Illustratively, the two lights projected by the projection device are red light and green light, and the additional light distribution coefficients corresponding to the red light, the green light and the blue light respectively can be determined by the following equation (8) according to the mixed color value and the third color value of the red light and the green light projected by the projection device and the first color value of the red light and the first color value of the green light projected by the projection device:
wherein the content of the first and second substances,
x data in mixed color values of red light and green light projected by a projection device simultaneously;
y data in mixed color values of red light and green light projected by the projection equipment simultaneously;
z data in mixed color values of red light and green light projected by the projection equipment simultaneously;αan additional light distribution coefficient corresponding to red light;βdistributing the additional light corresponding to the green light; gamma is the additional light distribution coefficient for blue light.
As another example, the two lights projected by the projection device are red light and blue light, and the additional light distribution coefficients corresponding to the red light, the green light and the blue light may be determined according to the mixed color value and the third color value of the red light and the blue light projected by the projection device simultaneously, and the first color value of the red light and the first color value of the blue light projected by the projection device by the following equation (9):
wherein the content of the first and second substances,
x data in mixed color values of red light and blue light projected by the projection equipment simultaneously;
y data in mixed color values of red light and blue light projected by the projection equipment simultaneously;
is the Z data in the mixed color values of red and blue light projected simultaneously by the projection device.
As another example, the two lights projected by the projection device are green light and blue light, and the additional light distribution coefficients corresponding to the red light, the green light and the blue light can be determined according to the mixed color value and the third color value of the green light and the blue light projected by the projection device and the first color value of the green light and the first color value of the blue light projected by the projection device by the following equation (10):
wherein the content of the first and second substances,
x data in mixed color values of green light and blue light projected by the projection equipment simultaneously;
y data in mixed color values of green light and blue light projected by the projection equipment simultaneously;
and Z data in mixed color values of green light and blue light projected by the projection equipment simultaneously.
Determining a second red color value with the saturation of 100% according to the third color value, the first red color value of the red light and the additional light distribution coefficient corresponding to the red light, determining a second green color value with the saturation of 100% according to the third color value, the first green color value of the green light and the additional light distribution coefficient corresponding to the green light, and determining a second blue color value with the saturation of 100% according to the third color value, the first blue color value and the additional light distribution coefficient corresponding to the blue light.
For example, the second color value of red with a saturation of 100% may be determined by the following equation (11) according to the third color value, the first color value of red, and the additional light distribution coefficient corresponding to red:
for example, the second color value of green having a saturation of 100% may be determined by the following equation (12) according to the third color value, the first color value of green, and the additional light distribution coefficient corresponding to green:
for example, the second color value of blue with a saturation of 100% may be determined by the following equation (13) according to the third color value, the first color value of blue light, and the additional light distribution coefficient corresponding to blue light:
(2) and constructing a color lookup table according to the second color values of the red, the green and the blue with the saturation of 100%.
Since the specific implementation of constructing the color lookup table according to the second color values of red, green, and blue with the saturation of 100% is described in detail in S2022, the detailed description thereof is omitted here.
The following describes in detail a specific embodiment of determining the gain factor of the RGB channel in the projection device according to the target chromaticity coordinates and the pre-constructed color lookup table in S102:
in the present disclosure, IRE may be usedR、IREG、IREBIn any combination (wherein IRERFor data level values corresponding to red, IRERIs [0, N ]]Any value within the range; IREGData level value for green, IREGIs [0, N ]]Any value within the range; IREBFor data level values corresponding to blue, IREBIs [0, N ]]Arbitrary value within the range), respectively, into the following equation (14), find such that: (x w ，y w ) IRE with minimum distance to target chromaticity coordinateR、IREG、IREBIRE is used hereRmin、IREGmin、IREBminIndicating, then, IRERmindetermining/N as the gain factor for the red channel, IREGmin/NDetermine IRE as a Green channel gain factorBminthe/N is determined as the gain factor for the blue channel.
Fig. 8 is a block diagram illustrating a control apparatus of a projection device according to an exemplary embodiment, wherein a projection light source of the projection device includes red light, green light, blue light, and additional light for increasing the projection brightness of the projection device. As shown in fig. 8, the apparatus 800 includes: an obtaining module 801, configured to obtain a target chromaticity coordinate of the projection light source in response to receiving a projection instruction; a determining module 802, configured to determine a gain coefficient of an RGB channel in the projection device according to the target chromaticity coordinate acquired by the acquiring module 801 and a pre-constructed color lookup table; an adjusting module 803, configured to adjust the gain of the RGB channel according to the gain coefficient determined by the determining module 802.
In the technical scheme, when a projection instruction is received, a target chromaticity coordinate of a projection light source of the projection equipment is obtained, wherein the projection light source comprises red light, green light, blue light and additional light for improving the projection brightness of the projection equipment; then, determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table; and finally, adjusting the gain of the RGB channel according to the gain coefficient. Therefore, the gain coefficient of the RGB channel can be rapidly and directly determined according to the target chromaticity coordinate and the color lookup table constructed in advance, so that the gain of the RGB channel is automatically adjusted according to the gain coefficient, the effect of automatically adjusting the color temperature of the projection equipment in place at one time is achieved, and the impression experience of a user is improved.
Optionally, the color lookup table is constructed by color lookup table construction means. The color lookup table construction apparatus 900 shown in fig. 9 includes: the control module 901 is configured to control the projection device to respectively project red light, green light, blue light, and white light according to any sequence, and obtain a first color value of the light projected by the projection device at each projection; a constructing module 902, configured to construct the color lookup table at least according to each of the first color values.
Optionally, the building module 902 includes: the judgment submodule is used for judging whether the RGB color mixing principle is met or not according to each first color value; and the first construction submodule is used for constructing the color lookup table according to the first color value of the red light, the first color value of the green light and the first color value of the blue light if the RGB color mixing principle is met.
Optionally, the building module 902 further includes: the control submodule is used for controlling the projection equipment to simultaneously project any two of the red light, the green light and the blue light and acquiring mixed color values of the two lights projected by the projection equipment if the RGB color mixing principle is not met; a second construction submodule for constructing the color look-up table in dependence on the blended color values and each of the first color values.
Optionally, the second building submodule comprises: a determining submodule for determining, from the mixed colour value and each of the first colour values, a respective second colour value of red, green and blue having a saturation of 100%; and the lookup table construction sub-module is used for constructing the color lookup table according to the second color values of the red, the green and the blue with the saturation of 100%.
Optionally, the determining sub-module includes: a first color value determination submodule for determining a third color value of the additional light in dependence on each of the first color values; a distribution coefficient determination submodule, configured to determine, according to the mixed color value, the third color value, and a first color value of each of the two types of light projected by the projection device, additional light distribution coefficients corresponding to the red light, the green light, and the blue light, respectively; and the second color value determining submodule is used for determining a red second color value with the saturation of 100% according to the third color value, the first color value of the red light and the additional light distribution coefficient corresponding to the red light, determining a green second color value with the saturation of 100% according to the third color value, the first color value of the green light and the additional light distribution coefficient corresponding to the green light, and determining a blue second color value with the saturation of 100% according to the third color value, the first color value of the blue light and the additional light distribution coefficient corresponding to the blue light.
In addition, the color lookup table constructing apparatus 900 may be integrated into the projection device control apparatus 800, or may be independent of the projection device control apparatus 800, and is not specifically limited in this disclosure.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described projection apparatus control method provided by the present disclosure.
Fig. 10 is a block diagram illustrating an electronic device 1000 in accordance with an example embodiment. As shown in fig. 10, the electronic device 1000 may include: a processor 1001 and a memory 1002. The electronic device 1000 may also include one or more of a multimedia component 1003, an input/output (I/O) interface 1004, and a communications component 1005.
The processor 1001 is configured to control the overall operation of the electronic device 1000, so as to complete all or part of the steps in the projection device control method. The memory 1002 is used to store various types of data to support operation of the electronic device 1000, such as instructions for any application or method operating on the electronic device 1000 and application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 1002 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk. The multimedia components 1003 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may further be stored in memory 1002 or transmitted through communication component 1005. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 1004 provides an interface between the processor 1001 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 1005 is used for wired or wireless communication between the electronic device 1000 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 1005 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 1000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for executing the above-mentioned projection Device control method.
In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the projection apparatus control method described above. For example, the computer readable storage medium may be the memory 1002 including program instructions executable by the processor 1001 of the electronic device 1000 to perform the projection device control method described above.
Fig. 11 is a block diagram illustrating an electronic device 1100 in accordance with an example embodiment. For example, the electronic device 1100 may be provided as a server. Referring to fig. 11, electronic device 1100 includes a processor 1122, which can be one or more in number, and a memory 1132 for storing computer programs executable by processor 1122. The computer programs stored in memory 1132 may include one or more modules that each correspond to a set of instructions. Further, the processor 1122 may be configured to execute the computer program to perform the projection device control method described above.
Additionally, the electronic device 1100 may also include a power component 1126 and a communication component 1150, the power component 1126 may be configured to perform power management of the electronic device 1100, and the communication component 1150 may be configured to enable communication, e.g., wired or wireless communication, of the electronic device 1100. In addition, the electronic device 1100 may also include an input/output (I/O) interface 11511. The electronic device 1100 may operate based on an operating system stored in the memory 1132, such as Windows ServerTM，Mac OS XTM，UnixTM，LinuxTMAnd so on.
In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the projection apparatus control method described above. For example, the computer readable storage medium may be the memory 1132 described above including program instructions that are executable by the processor 1122 of the electronic device 1100 to perform the projection device control method described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned projection device control method when executed by the programmable apparatus.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A projection device control method is characterized in that a projection light source of the projection device comprises red light, green light, blue light and additional light for improving the projection brightness of the projection device;
the method comprises the following steps:
acquiring a target chromaticity coordinate of the projection light source in response to receiving a projection instruction;
determining a gain coefficient of an RGB channel in the projection equipment according to the target chromaticity coordinate and a pre-constructed color lookup table;
and adjusting the gain of the RGB channel according to the gain coefficient.
2. The method of claim 1, wherein the color look-up table is constructed by:
controlling the projection equipment to respectively project red light, green light, blue light and white light according to any sequence, and acquiring a first color value of the light projected by the projection equipment during each projection;
constructing the color lookup table based at least on each of the first color values.
3. The method of claim 2, wherein constructing the color lookup table based at least on each of the first color values comprises:
judging whether the RGB color mixing principle is met or not according to each first color value;
and if the RGB color mixing principle is met, constructing the color lookup table according to the first color value of the red light, the first color value of the green light and the first color value of the blue light.
4. The method of claim 3, wherein constructing the color lookup table based at least on each of the first color values further comprises:
if the RGB color mixing principle is not met, controlling the projection equipment to simultaneously project any two of the red light, the green light and the blue light, and acquiring mixed color values of the two lights projected by the projection equipment;
constructing the color look-up table from the blended color values and each of the first color values.
5. The method of claim 4, wherein constructing the color lookup table based on the blended color values and each of the first color values comprises:
determining a second color value of each of red, green and blue with a saturation of 100% based on the mixed color value and each of the first color values;
and constructing the color lookup table according to the second color values of the red, the green and the blue with the saturation of 100%.
6. The method of claim 5, wherein determining the respective second color values for red, green, and blue at 100% saturation from the blended color value and each of the first color values comprises:
determining a third color value of the additional light according to each first color value;
determining additional light distribution coefficients corresponding to the red light, the green light and the blue light respectively according to the mixed color value, the third color value and the first color value of each of the two lights projected by the projection device;
determining a second color value of red with a saturation of 100% according to the third color value, the first color value of red light and the additional light distribution coefficient corresponding to red light, determining a second color value of green with a saturation of 100% according to the third color value, the first color value of green light and the additional light distribution coefficient corresponding to green light, and determining a second color value of blue with a saturation of 100% according to the third color value, the first color value of blue light and the additional light distribution coefficient corresponding to blue light.
7. A projection device control device is characterized in that a projection light source of the projection device comprises red light, green light, blue light and additional light for improving the projection brightness of the projection device;
the device comprises:
the acquisition module is used for responding to the received projection instruction and acquiring the target chromaticity coordinate of the projection light source;
the determining module is used for determining the gain coefficient of the RGB channel in the projection equipment according to the target chromaticity coordinate acquired by the acquiring module and a pre-constructed color lookup table;
and the adjusting module is used for adjusting the gain of the RGB channel according to the gain coefficient determined by the determining module.
8. The apparatus according to claim 7, wherein the color lookup table is constructed by color lookup table constructing means;
the color lookup table construction device includes:
the control module is used for controlling the projection equipment to respectively project red light, green light, blue light and white light according to any sequence and acquiring a first color value of the light projected by the projection equipment during each projection;
and the building module is used for building the color lookup table at least according to each first color value.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
10. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 6.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112750171A (en) * | 2021-04-02 | 2021-05-04 | 深圳市火乐科技发展有限公司 | Color adjustment method, device, medium and electronic equipment |
| CN114205569A (en) * | 2021-12-10 | 2022-03-18 | 峰米(北京)科技有限公司 | Color temperature compensation method and device for projection equipment |
| WO2022174651A1 (en) * | 2021-02-22 | 2022-08-25 | 深圳市火乐科技发展有限公司 | Projection device control method and apparatus, medium, and electronic device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349856A (en) * | 2007-07-20 | 2009-01-21 | 鸿富锦精密工业（深圳）有限公司 | Projecting system and color temperature regulation method thereof |
| CN101644875A (en) * | 2009-03-04 | 2010-02-10 | 青岛海信电器股份有限公司 | Color temperature correction method and projection system using same |
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
| CN106791737A (en) * | 2015-11-25 | 2017-05-31 | 中兴通讯股份有限公司 | The color calibration method and device of projected picture |
| CN108172156A (en) * | 2018-01-18 | 2018-06-15 | 安徽三弟电子科技有限责任公司 | A kind of projector intelligent projection control system and method |
| CN110786006A (en) * | 2018-07-19 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Color temperature adjusting method, control terminal and movable platform |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101597822B1 (en) * | 2008-11-25 | 2016-02-25 | 삼성전자주식회사 | Method for calibrating a color temperature of a projector |
| WO2014162590A1 (en) * | 2013-04-05 | 2014-10-09 | Ｎｅｃディスプレイソリューションズ株式会社 | Projector and control method therefor |
| CN110267022B (en) * | 2019-06-28 | 2021-08-17 | 成都极米科技股份有限公司 | White balance correction method, device and system for projection device |
| CN112565727B (en) * | 2021-02-19 | 2021-05-25 | 深圳市火乐科技发展有限公司 | Projection equipment control method, device, medium and electronic equipment |
| CN112601062B (en) * | 2021-02-22 | 2021-07-02 | 深圳市火乐科技发展有限公司 | Projection equipment control method, device, medium and electronic equipment |
-
2021
- 2021-02-22 CN CN202110197462.7A patent/CN112601062B/en active Active
- 2021-12-06 WO PCT/CN2021/135866 patent/WO2022174651A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349856A (en) * | 2007-07-20 | 2009-01-21 | 鸿富锦精密工业（深圳）有限公司 | Projecting system and color temperature regulation method thereof |
| CN101644875A (en) * | 2009-03-04 | 2010-02-10 | 青岛海信电器股份有限公司 | Color temperature correction method and projection system using same |
| CN106791737A (en) * | 2015-11-25 | 2017-05-31 | 中兴通讯股份有限公司 | The color calibration method and device of projected picture |
| CN105911807A (en) * | 2016-06-03 | 2016-08-31 | 青岛海信电器股份有限公司 | Laser projection method and laser projector |
| CN108172156A (en) * | 2018-01-18 | 2018-06-15 | 安徽三弟电子科技有限责任公司 | A kind of projector intelligent projection control system and method |
| CN110786006A (en) * | 2018-07-19 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Color temperature adjusting method, control terminal and movable platform |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022174651A1 (en) * | 2021-02-22 | 2022-08-25 | 深圳市火乐科技发展有限公司 | Projection device control method and apparatus, medium, and electronic device |
| CN112750171A (en) * | 2021-04-02 | 2021-05-04 | 深圳市火乐科技发展有限公司 | Color adjustment method, device, medium and electronic equipment |
| CN112750171B (en) * | 2021-04-02 | 2021-08-31 | 深圳市火乐科技发展有限公司 | Color adjustment method, device, medium and electronic equipment |
| CN114205569A (en) * | 2021-12-10 | 2022-03-18 | 峰米(北京)科技有限公司 | Color temperature compensation method and device for projection equipment |
| CN114205569B (en) * | 2021-12-10 | 2023-07-07 | 峰米(北京)科技有限公司 | Color temperature compensation method and device for projection equipment |
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|---|---|
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