CN112882667B - Color accuracy device and color inspection method - Google Patents
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- CN112882667B CN112882667B CN201911205163.2A CN201911205163A CN112882667B CN 112882667 B CN112882667 B CN 112882667B CN 201911205163 A CN201911205163 A CN 201911205163A CN 112882667 B CN112882667 B CN 112882667B
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- 238000007689 inspection Methods 0.000 title claims abstract description 15
- 239000003086 colorant Substances 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000000605 extraction Methods 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 1
- 238000009877 rendering Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
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- 239000000835 fiber Substances 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
Abstract
A color accuracy device and a color inspection method, wherein the color accuracy device is used for viewing the true color of the color displayed by a display. The color accuracy device comprises a clicking device configured to indicate a location point on the display; a communication device configured to receive color parameters within a specific range centered on a positioning point sent by the display; a color accurate display configured to display a color according to the color parameter; and the input device is configured to control a plurality of display parameters of the color accurate display, so that the color accurate display displays the colors according to the plurality of display parameters and the color parameters.
Description
Technical Field
The present disclosure relates to a color accuracy device, and more particularly, to a color accuracy device and a viewing method for viewing colors displayed by a display.
Background
In order to make the designed finished product tend to be perfect, designers have extremely high requirements on the color accuracy. In modern times, most designs are done by a computer, however, the same color parameters are very likely to differ in color on a computer screen from the actual color on the real world, which may lead to a difference between the finished product being manufactured and what the designer expects. For example, the color displayed by the screen is different from the actual color seen by the human eye after the finished product is printed because of the color shift of the screen. Thus, designers often use different methods in an effort to minimize the difference between the color presented by the computer screen and the actual color. For example, a designer may use a paper ticket to check the color parameters presented by the screen with the paper ticket to confirm the color currently displayed by the screen, which, after being manufactured into a finished product, will appear as what the real color is in the real world. Alternatively, the designer may use a screen color corrector to correct the color level of the screen, making the color presented by the screen more accurate and closer to the true color.
However, the paper-based color ticket itself is heavy and inconvenient to carry, and in addition, it is necessary to compare colors one by one, which is inconvenient to use. On the other hand, the screen color corrector needs to be used regularly, and in order to make the effect better, the screen color corrector often needs to be used together with an expensive color accurate screen, in addition, only the screen corrected by the screen color corrector can present accurate colors, and once files are displayed by other screens, the same accurate colors cannot be presented. In view of the foregoing, there is a need for a portable and low cost device that allows a designer to carry around while providing the ability to confirm the true color of each of the different screens.
Disclosure of Invention
The present disclosure provides a color accurate device for viewing the true color of a color displayed by a display. The color accuracy device comprises a clicking device configured to indicate a location point on the display; a communication device configured to receive color parameters within a specific range centered on a positioning point sent by the display; a color accurate display configured to display a color according to the color parameter; and the input device is configured to control a plurality of display parameters of the color accurate display, so that the color accurate display displays the colors according to the plurality of display parameters and the color parameters.
Embodiments of the present disclosure provide a color viewing method for viewing the true color of a color displayed by a display. The color inspection method includes indicating a location on the display; receiving a plurality of color parameters of the display in a specific range with a positioning point as a center; and displaying a color on the color-accurate display according to the color parameter.
Drawings
The present disclosure may be better understood from the following description and the accompanying drawings. It is emphasized that, in accordance with the standard practice of the industry, various features are not drawn to scale and are used for illustration purposes only. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion. It is also emphasized that the appended drawings illustrate only typical embodiments of this disclosure and are not to be considered limiting of its scope, for the disclosure may admit to other equally effective embodiments.
FIG. 1 is a schematic diagram of a color accurate device according to an embodiment of the present disclosure.
FIG. 2 is a schematic diagram illustrating the operation of a color accurate device, according to an embodiment of the present disclosure.
FIG. 3 is a flow chart of a color viewing method for viewing true colors using a color accurate device, according to an embodiment of the present disclosure.
Reference numerals illustrate:
100-color accurate device
110-click device
120-communication device
130-color accurate display
140-input device
150-color temperature sensor
200-electronic device
210-display
215-image
220-locating point
230-processing device
240-communication device
300-color inspection method
S302-S310-operations
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the disclosure. Specific examples of components and arrangements of the present disclosure are described below to simplify the present disclosure. Of course, these examples are not intended to limit the present disclosure. For example, if a first feature is described above or below a second feature, embodiments in which the first and second features are formed in direct contact may include embodiments in which additional features are formed between the first and second features, such that the first and second features are not in direct contact. Further, the present disclosure may repeat reference numerals and/or letters in the various examples. The repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Further, the present disclosure may use spatially relative terms, such as "below" … …, "below," "above … …," "above," and the like, to facilitate describing the relationship of one element or feature to another element or feature in the figures. In addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use or operation. The device may be turned to a different orientation (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Still further, unless specifically denied, singular terms include plural numbers and vice versa. And when a number or a range of numbers is described by the term "about," "approximately," or similar terms, the term is intended to encompass the reasonable numbers including the recited number, such as +/-10% of the recited number or other values as would be understood by one of skill in the art. Moreover, the present disclosure is not limited by the illustrated ordering of acts or events, as some acts may occur in different orders and/or concurrently with other acts or events. Moreover, not all illustrated acts or events are required to implement a methodology in accordance with the present disclosure.
In order to solve the problems that paper tickets are heavy and inconvenient to use, and a screen color corrector is expensive and cannot be used for a plurality of screens simultaneously in the prior art, an embodiment of the disclosure provides a color accurate device (true color device). The color accurate device can provide the true color of the color displayed by the screen for a user by acquiring the color parameters of the color displayed by the screen and displaying the color on a color accurate display directly according to the color parameters.
FIG. 1 is a schematic diagram of a color accuracy device 100, according to an embodiment of the present disclosure. It should be noted that in the present disclosure, the color accurate device 100 is presented in the form of a pen, but is not limited thereto. Color accurate device 100 includes pointing device 110, communication device 120, color accurate display 130, and input device 140. In some embodiments, color accurate device 100 also includes color temperature sensor 150.
The pointing device 110 may be a tip of a stylus, such as a silicone, a conductive fiber cloth, a resin, or other suitable material. The pointing device 110 is used to indicate a location point on a display, which is the location where the user wants to view the true color. For example, when an image is displayed on a display, if the true color of a specific location of the image is to be viewed, the pointing device 110 may be used to click on the specific location to indicate the specific location as a anchor point. It should be noted that depending on the design of the pointing device 110 and the display, the pointing device 110 may click on the specific location in a direct contact manner or indicate the specific location in a non-direct contact manner.
The communication means 120 are used to receive color parameters of the anchor points. For example, the communication device 120 receives RGB values from the display, where the RGB values are RGB values of an image displayed by the display on a setpoint.
The color accurate display 130 is a display that is precisely calibrated at the time of shipment to display colors that are accurate and close to the true colors. In the disclosed embodiment, the display used by color accurate display 130 is a display with Delta E less than 1 under the CIEDE 2000 definition of the international committee of illumination. However, according to the requirements, the color accurate display 130 may also use a display with different color accuracy, or a display with color accuracy defined according to different standards. The color accurate display 130 is used to display colors for viewing by a user based on color parameters (e.g., RGB values) received by the communication device 120. The color accurate display 130 may be a precisely calibrated plasma display, liquid crystal display, light emitting diode display, or other suitable display.
The input device 140 may be a physical key or a touch screen, and the input device 140 is used to control display parameters of the color accurate display 130, such as a color temperature parameter, a color gamut parameter, and/or a color extraction range, but is not limited thereto. In some embodiments, the input device 140 includes a white balance adjustment key (not shown). The white balance key is used to adjust the color temperature parameter of the color accurate display 130, so that the color accurate display 130 displays colors according to different color temperatures and the color parameters received by the communication device 120. In this way, the color accurate device 100 can simulate the true colors of the same color parameters under the environments with different color temperatures.
For example, if a display is to display colors at a display field with a color temperature of about 2800K, the color temperature of the color-accurate display 130 may be adjusted to the color temperature of the incandescent lamp by the white balance adjustment key, so that the color-accurate display 130 simulates the real color of the display colors at the color temperature of the incandescent lamp. The white balance adjustment key may cause the color accurate display 130 to switch between the following color temperatures: candles, incandescent lamps, halogen lamps, moonlight, daylight, average daylight, xenon arc lamps, and/or daylight lamps, but are not limited thereto.
The input device 140 may be used in combination with the color temperature sensor 150. In some embodiments, the input device 140 further includes a color temperature sensing key (not shown) that is used to activate the color temperature sensor 150 to detect the ambient color temperature of the current environment. In some embodiments, the color temperatures that the white balance adjustment key can switch include the ambient color temperature detected by the color temperature sensor 150 in addition to the various color temperatures described above. By detecting the ambient color temperature and having the color-accurate display 130 display colors according to the ambient color temperature, the color-accurate display 130 can more accurately present true colors.
For example, if the color displayed on the display is to be displayed on a specific exhibition field, an ambient color temperature of the specific exhibition field can be detected by the color temperature sensor 150, and then the color temperature of the color-accurate display 130 can be adjusted to the ambient color temperature by the white balance adjustment key in other environments (such as the working room of the user), so that the color-accurate display 130 simulates the real color of the color displayed on the display under the ambient color temperature.
In some embodiments, the input device 140 includes a color space (color space) adjustment key (not shown). The gamut adjustment key is used to switch the gamut parameters of the color accurate display 130 so that the color accurate display 130 displays colors according to different gamuts and the color parameters received by the communication device 120. In this way, the color accurate device 100 can simulate the true colors of the same color parameters in different color gamuts without being limited by the color gamut of the display itself providing the color parameters.
For example, if the color displayed by the display with Adobe RGB is to be viewed, and what color is to be displayed after being printed by a printer that can only output sRGB color gamut, the color gamut of the color-accurate display 130 may be switched to sRGB by the color gamut adjustment key, so that the color-accurate display 130 displays the real color in the sRGB color gamut. The gamut adjustment key may cause color accurate display 130 to switch between: DCI-P3, adobe RGB, sRGB, rec.709, and/or rec.2020, but is not limited thereto.
In some embodiments, the input device 140 includes a color-taking range adjustment key (not shown) for changing the area indicated by the pointing device 110, wherein the area is an area within a specific range centered on the positioning point indicated by the pointing device 110. In this way, the color accurate display 130 can display a precise color in a very small range or display an overall color in a larger range. When the area of a specific range centered on the positioning point indicated by the pointing device 110 is a pixel, the color parameter received by the communication device 120 is the RGB value of the pixel, and when the area of the specific range is larger than the pixel, the color parameter received by the communication device 120 is an RGB value generated by Gaussian Blur (Gaussian blue) or other suitable image Blur calculation of all pixels in the specific range.
In some embodiments, the color accurate display 130 displays the color and the currently used color temperature parameter, color gamut parameter, and/or color capturing range, but is not limited thereto.
Fig. 2 is a schematic diagram illustrating the operation of color accuracy device 100, according to an embodiment of the present disclosure. The electronic device 200 includes a display 210, and a processing device 230 and a communication device 240 coupled to the display 210. It should be noted that although the electronic device 200 is presented in the present disclosure in the form of a display, the electronic device 200 may be a desktop computer, a notebook computer, a tablet computer, a smart phone, or other devices in which the display may be a touch screen.
In fig. 2, display 210 displays image 215. Referring also to fig. 1 and 2, when the true color of the color displayed at anchor point 220 by image 215 displayed by display 210 is to be viewed, anchor point 220 may be indicated as an anchor point by clicking on anchor point 220 in direct contact or indirect contact by pointing device 110 (fig. 1) of color accurate device 100.
The processing device 230 then calculates color parameters (e.g., RGB values) of the image 215 at the anchor point 220. The processing device 230 then transmits the calculated color parameters at the location point 220 to the color accuracy device 100, e.g., to the communication device 120 (fig. 1) of the color accuracy device 100, via the communication device 240. In some embodiments, communication device 240 and communication device 120 may be communicatively coupled to each other by wireless and/or wired means. In some embodiments, when pointing device 110 clicks at anchor point 220, anchor point 220 is immediately indicated as an anchor point, and processing device 230 may then begin calculating color parameters. In other embodiments, the input device 140 (fig. 1) of the color accurate device 100 further includes an indication key (not shown), and the processing device 230 starts to calculate the color parameter only when the pointing point 220 is clicked by the clicking device 110 and the indication key is pressed.
Upon receiving the color parameters at anchor point 220, color accurate display 130 of color accurate device 100 displays a color according to the color parameters at anchor point 220. The display parameters of the color accurate display 130 (FIG. 1) can then be controlled by the input device 140, so that the color accurate display 130 displays colors according to the display parameters and the color parameters at the anchor point 220. For example, after the color temperature parameters of the color accurate display 130 are adjusted by the white balance adjustment key, the color accurate display 130 displays colors according to the current color temperature parameters and the color parameters at the positioning point 220; after the color gamut parameters of the color accurate display 130 are switched by the color gamut adjustment key, the color accurate display 130 displays colors according to the current color gamut parameters and the color parameters at the positioning point 220, wherein the color accurate display 130 can display colors according to different color temperature parameters and color gamut parameters.
In some embodiments, the color temperature sensor 150 of the color accurate device 100 may be utilized to obtain the ambient color temperature of other environments. For example, if the image 215 displayed on the display 210 is to be displayed on a specific exhibition field, an ambient color temperature of the specific exhibition field can be obtained by the color temperature sensor 150 in advance, and then the color temperature parameter of the color accurate display 130 is switched to the ambient color temperature by the input device 140, so that the color accurate display 130 can display the color according to the ambient color temperature and the color parameter at the positioning point 220. By detecting the ambient color temperature in the field, the color accuracy device 100 can obtain more accurate color temperature parameters.
In some embodiments, the color capture area of the color accurate device 100 (i.e., the area of a particular range centered on the anchor point 220) can be changed by a color capture range adjustment key of the input device 140. For example, when the color capturing area is the minimum, the processing device 230 calculates the color parameter of the pixel located at the center of the positioning point 220 and transmits the color parameter to the color accuracy device 100. When the color extraction area is larger than a pixel (e.g., a circle with a radius of N pixels centered on the location point 220, or a rectangle with n×m pixels centered on the location point 220, where N and M are positive integers greater than 1), the processing device 230 calculates color parameters (e.g., RGB values of all pixels) of all pixels within the color extraction range, and calculates a specific color parameter (e.g., a set of RGB values) by gaussian blur or other suitable image blur method, and the specific color parameter is transmitted to the color accuracy device 100 by the communication device 240.
FIG. 3 is a flow chart of a color viewing method 300 for viewing true colors using the color accurate device 100, according to an embodiment of the present disclosure. In operation S302, the color inspection method 300 may indicate a location on a display of the color to be inspected. For example, anchor point 220 may be indicated on image 215 displayed by display 210 by pointing device 110 of color accurate device 100.
In operation S303, the color inspection method 300 may adjust an area of a specific range centered on the anchor point through the input device. For example, the color capture area of the color accurate device 100 (i.e., the area of a particular range centered on the anchor point 220) can be changed by a color capture range adjustment key of the input device 140. In some embodiments, operation S303 may be performed before operation S302.
In operation S304, the color viewing method 300 may receive color parameters from the display within a specific range centered at a setpoint. For example, the processing device 230 coupled to the display 210 calculates the color parameters at the anchor point 220, and transmits the calculated color parameters at the anchor point 220 to the color accuracy device 100 (via the communication device 120) through the communication device 240. In some embodiments, when the area of the specific range designated in operation S303 is greater than 1 pixel, the processing device 230 calculates the color parameters of all pixels in the color capturing range, calculates a specific color parameter by gaussian blur or other suitable image blur method, and transmits the specific color parameter to the color accuracy device 100.
In operation S306, the color inspection method 300 may display the color parameters received in operation S304 in the form of colors through a color precision display. For example, upon receiving a color parameter at anchor point 220, a color may be displayed according to the color parameter at anchor point 220 by color accurate display 130 of color accurate device 100.
In operation S308, the color inspection method 300 may adjust the display parameters of the color accurate display through the input device. For example, the color temperature parameter and the color gamut parameter of the color accurate display 130 can be adjusted by the white balance adjustment key and the color gamut adjustment key of the input device 140, respectively. Color temperature parameters may include, but are not limited to, candles, incandescent lamps, halogen lamps, moonlight, daylight, average daylight, xenon arc lamps, and/or daylight lamps. The color gamut parameters may include, but are not limited to, DCI-P3, adobe RGB, sRGB, rec.709, and/or rec.2020.
In operation S310, the color precision display may display colors according to the display parameters adjusted in operation S308 and the color parameters received in operation S304, so that the color precision display may display colors of the same color parameters under different color temperatures and different color gamuts. For example, when the color temperature parameter is adjusted to incandescent and the color gamut parameter is adjusted to Adobe RGB, the color accurate display 130 will display the color of the color parameter at the anchor point 220 under incandescent and Adobe RGB.
In some embodiments, the color inspection method 300 further includes a color temperature sensing operation (not shown), which may be located before, after, or between any two operations of the color inspection method 300. The color temperature sensing operation may be performed by sensing an ambient color temperature of the current environment such that the color temperature parameter adjusted in operation S308 further includes the ambient color temperature. For example, the color temperature sensor 150 of the color accurate device 100 detects the color temperature to be obtained before operation S302, or detects the color temperature to be obtained after operation S306, and the color accurate display displays the color according to the obtained color temperature and the color parameters at the positioning point 220.
It should be noted that devices such as processing devices, power supplies, memory, etc. are not shown on color accurate device 100 for clarity of illustration. However, those skilled in the art will appreciate the functionality of these devices and install these devices onto color accurate device 100 and perform the same functions as described herein without departing from the scope and spirit of the present disclosure. Further, additional operations may be provided before, during, or after the color viewing method 300, and some of the operations described may be replaced, eliminated, or moved for use with other embodiments of the method.
The embodiment of the disclosure provides a color accurate device and a color inspection method using the same. With the color accuracy device, the professional inventor can easily and quickly view the true color of the color displayed by the display and simultaneously view the true color of the color displayed by the display under different color temperatures and color gamuts. In addition, through the color accuracy device, the color temperature of different environments can be detected, so that a professional inventor can view the true colors of the colors displayed by the display under different environments.
On the other hand, the color accurate device can be continuously used for a plurality of displays, and avoids color difference among different displays and misjudgment caused by replacing a new display. In addition, the color accurate device can be carried with a person, so that the trouble of carrying heavy paper natural color tickets and the cost of purchasing a large amount of expensive color accurate screens can be avoided.
The foregoing disclosure outlines features of various embodiments or examples so that those skilled in the art may better understand the disclosure. Those skilled in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments or examples presented herein. It should also be understood by those skilled in the art that various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the present disclosure.
Claims (8)
1. A color accurate device for viewing true colors of colors displayed by a display, comprising:
a clicking device configured to indicate a location point on the display;
a communication device configured to receive color parameters within a range centered on the positioning point sent by the display;
a color accurate display configured to display a color according to the color parameters;
a color temperature sensor configured to detect an ambient color temperature of a first environment;
an input device configured to control a plurality of display parameters of the color-accurate display, and the input device includes a white balance adjustment key configured to adjust a color temperature parameter of the plurality of display parameters, so that the color-accurate display displays the color according to the plurality of display parameters and the color parameter in a second environment different from the first environment, wherein the color temperature parameter of the plurality of display parameters is the ambient color temperature of the first environment; and
an electronic device including the display, a processing device and a second communication device is configured to calculate the color parameter within the range by the processing device and transmit the color parameter to the communication device by the second communication device when the anchor point is indicated.
2. The color accurate apparatus of claim 1 wherein the white balance adjustment key is further configured to adjust the color temperature parameter as a candle, an incandescent lamp, a halogen lamp, a moonlight, sunlight, average sunlight, a xenon arc lamp, or a fluorescent lamp.
3. The color accurate apparatus of claim 1 wherein the input means comprises a gamut adjustment key configured to switch a gamut parameter of the plurality of display parameters to cause the color accurate display to display the color according to the gamut parameter and the color parameter, wherein the gamut parameter comprises one or more of DCI-P3, adobe RGB, sRGB, rec.709, or rec.2020.
4. The color accurate apparatus of claim 1 wherein said input means includes a color extraction range adjustment key configured to switch the area of said range.
5. A color viewing method for viewing true colors of colors displayed by a display, the color viewing method comprising:
indicating a location point on the display by a clicking device of a color accurate device;
calculating color parameters of the display in a range centered on the positioning point by a processing device of an electronic device comprising the display;
transmitting the color parameter to a second communication device of the color accuracy device through a first communication device of the electronic device;
receiving, by the second communication device of the color accuracy device, the color parameter in the range centered on the anchor point of the display;
detecting an ambient color temperature of a first environment by a color temperature sensor; and
and adjusting a color temperature parameter of the color accurate display to the environment color temperature through a white balance adjusting key in a second environment different from the first environment so as to display a color on the color accurate display of the color accurate device according to the color parameter and the environment color temperature.
6. The color inspection method of claim 5, further comprising:
the color temperature parameter of the color accurate display is adjusted to be a candle, an incandescent lamp, a halogen lamp, a moon light, sunlight, average sunlight, a xenon arc lamp or a fluorescent lamp through the white balance adjusting key; and
and displaying the color on the color accurate display according to the color parameter and the color temperature parameter.
7. The color inspection method of claim 5, further comprising:
switching a color gamut parameter of the color accurate display through a color gamut adjusting key; and
displaying the color on the color-accurate display according to the color parameter and the color gamut parameter, wherein the color gamut comprises one or more of DCI-P3, adobe RGB, sRGB, rec.709, or rec.2020.
8. The color inspection method of claim 5, further comprising:
adjusting an area of the range by a color-taking range adjusting key;
when the area is larger than one pixel, calculating the color parameter according to Gaussian blur; and
displaying the color on the color rendering display according to the color parameters calculated by Gaussian blur.
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| CN103512658A (en) * | 2012-06-29 | 2014-01-15 | 深圳市祈飞科技有限公司 | Color identification system and method |
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| CN108628531A (en) * | 2018-04-19 | 2018-10-09 | 广州视源电子科技股份有限公司 | Method, apparatus, electronic equipment, storage medium and the smart pen for taking color to write |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080303918A1 (en) * | 2007-06-11 | 2008-12-11 | Micron Technology, Inc. | Color correcting for ambient light |
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|---|---|---|---|---|
| CN103512658A (en) * | 2012-06-29 | 2014-01-15 | 深圳市祈飞科技有限公司 | Color identification system and method |
| CN107702798A (en) * | 2017-10-10 | 2018-02-16 | 京东方科技集团股份有限公司 | Measure display color degree of accuracy method and correction display color technique of expression |
| CN108628531A (en) * | 2018-04-19 | 2018-10-09 | 广州视源电子科技股份有限公司 | Method, apparatus, electronic equipment, storage medium and the smart pen for taking color to write |
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