CN112880831B - Chromatic aberration measuring method and device and chromatic aberration measuring instrument - Google Patents
Chromatic aberration measuring method and device and chromatic aberration measuring instrument Download PDFInfo
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Abstract
The application provides a chromatic aberration measuring method, a chromatic aberration measuring device and a chromatic aberration meter; the color difference measuring method comprises the following steps: under the condition that a first operation instruction is received, obtaining a color value of a sample, wherein the first operation instruction is an instruction for measuring the color of the sample; calculating a deviation value between the color value of the sample and a standard color value, wherein the standard color value is the color value of a standard color card acquired from a server; the deviation value was determined as the color difference value of the sample color from the standard color chart. According to the color difference measuring method and device and the color difference meter, the problem that the colors of the standard color cards are inconsistent due to storage of the standard color cards can be solved, and the color consistency of products can be improved.
Description
Technical Field
The application relates to the technical field of color measurement, in particular to a color difference measuring method and device and a color difference measuring instrument.
Background
The color difference meter is used for measuring the color difference between the color of a sample and a standard color, and has wide application in industries such as papermaking, printing, ceramics, chemical engineering, textile printing and dyeing, building materials and the like.
At present, a color difference meter is used for measuring the color difference of a sample, and generally a standard color card is firstly tested to obtain a standard color value, then the sample is measured to obtain a sample color value, and the color difference between the sample color and the standard color is obtained through calculation.
At present, a standard color card is used for obtaining a standard color value, and because uncertain factors exist in the storage of the standard color card, the measurement consistency of the color difference value of a sample color and the standard color card is poor when a plurality of manufacturers produce the same material.
Disclosure of Invention
The application provides a color difference measuring method, a color difference measuring device, a color difference measuring instrument and a computer readable storage medium, which are used for solving the problem that the measurement consistency of the color difference value of a sample color and a standard color card is poor when a plurality of manufacturers produce the same material due to uncertain factors existing in the storage of the standard color card.
According to a first aspect of the present application, there is provided a color difference measurement method including:
under the condition that a first operation instruction is received, obtaining a color value of a sample, wherein the first operation instruction is an instruction for measuring the color of the sample;
calculating a deviation value of the color value of the sample and a standard color value, wherein the standard color value is a color value of a standard color card acquired from a server;
determining the deviation value as the color difference value of the color of the sample and the standard color card.
In one possible design, each standard color value corresponds to a sample name, and after determining the deviation value as the color difference value between the color of the sample and the standard color chart, the method further comprises:
and determining the sample name corresponding to the standard color card with the minimum deviation value as the color number of the sample color.
In one possible design manner, after determining the sample name corresponding to the standard color chart having the smallest deviation value of the color values of the sample as the color number of the color of the sample, the method further includes:
under the condition that a second operation instruction is received, receiving identification numbers of color difference meters which are sent by a server and are associated with the server, wherein each color difference meter corresponds to one identification number; the second operation instruction is an instruction for sharing the color information of the current sample;
in the event that a selected operation is received on the identification number; sending the current color information of the sample to a color difference meter corresponding to the selected identification number, wherein the color information of the sample comprises: sample name and color value.
In a possible design, before the obtaining the color value of the sample, the method further includes:
and under the condition of receiving an operation instruction for importing color information, importing the sample color information shared to the current color difference meter from the server.
In one possible design, the sample comprises a standard color chip.
In one possible design, before the obtaining the color value of the sample, the method further includes:
under the condition that a calibration operation instruction is received, obtaining a color value of a calibration white board;
and calibrating the measurement parameters of the color difference meter according to the color value of the calibration white board.
In one possible design, after determining the deviation value as the color difference value between the color of the sample and the standard color chart, the method further comprises:
judging the size of the color difference value and a preset color difference threshold value;
determining that the color of the sample is qualified under the condition that the color difference value is less than or equal to the preset color difference threshold value;
and determining that the color of the sample is unqualified under the condition that the color difference value is larger than the preset color difference threshold value.
According to a second aspect of the present application, there is provided a chromatic aberration measuring apparatus including:
the device comprises an acquisition module, a color value acquisition module and a color value measurement module, wherein the acquisition module is used for acquiring a color value of a sample under the condition of receiving a first operation instruction, and the first operation instruction is an instruction for measuring the color of the sample;
the calculation module is used for calculating a deviation value of the color value of the sample and a standard color value, wherein the standard color value is a color value of a standard color card acquired from a server;
and the determining module is used for determining the deviation value as the color difference value of the color of the sample and the standard color card.
According to a third aspect of the present application, there is provided a color difference measuring instrument including: a memory, a processor and a communication bus;
the memory is in communication connection with the processor through the communication bus;
the memory has stored therein computer-executable instructions for execution by the processor to perform the method provided in any one of the possible designs of the first aspect of the application.
According to a fourth aspect of the present application, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, which when executed, implement the method provided in any one of the possible designs of the first aspect of the present application.
According to the embodiment of the application, when an instruction for measuring the color of the sample is received, the color of the sample is measured firstly to obtain the color value of the sample; and then, downloading the color values of the standard color card from the server, and calculating the deviation value of the color values of the sample and the standard color card to quickly obtain the color difference value of the sample color and the standard color card. Like this, can directly download the colour value that obtains the standard colour chip from the server, different mills can obtain the same colour value of same standard colour chip when producing same material, can avoid causing the inconsistent problem of standard colour chip colour because of the save of standard colour chip, consequently, can improve the uniformity of product colour.
The construction of the present application and other objects and advantages thereof will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of an implementation of a color difference measuring method provided in an embodiment of the present application;
FIG. 2 is a block diagram of a color difference meter according to an embodiment of the present application;
fig. 3 is a flowchart of another implementation of a color difference measuring method provided in an embodiment of the present application;
fig. 4 is a block diagram of a color difference detection apparatus according to an embodiment of the present application;
fig. 5 is a block diagram of a color difference measuring instrument according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the embodiments of the present application, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Fig. 1 is a flowchart of an implementation of a color difference measurement method according to an embodiment of the present application.
Referring to fig. 1, according to a first aspect of the embodiments of the present application, there is provided a color difference measurement method applied in a color difference measurement instrument for measuring a color difference between a sample color and a color of a standard color chip, including the following steps:
Specifically, when a user uses a color difference meter to measure the color difference of a sample, the user can trigger a first operation instruction by clicking a button for measuring the color of the sample, wherein the first operation instruction is an instruction for measuring the color of the sample. In a specific implementation, the color difference meter may be a color difference meter with a touch screen, and the button for sample color measurement may be a physical key or a virtual key displayed on the touch screen.
In the embodiment of the application, the sample can be paper, printing ink, or chemical cosmetics such as lipstick and blush in the paper industry. It should be noted that the sample may also be a standard color chart or a calibration white board. When the sample is a standard color chart, the color value of the standard color chart, i.e., the standard color value, is obtained.
Specifically, referring to fig. 2, fig. 2 is a block diagram of a color difference meter in an embodiment of the present application. When a user triggers a first operation instruction through the key 24, the processor 21 generates a driving signal, the LED is driven by the LED driver to emit light, the light emitted by the LED is irradiated onto a sample, the sample absorbs part of the light emitted by the LED, and the non-absorbed light is reflected by the sample and then detected by the detector 23, so as to measure the color value of the sample.
Wherein the color value of the sample may be a Lab value, where L refers to a brightness level of the sample, a refers to a red-green level of the sample, and b refers to a yellow-blue level of the sample.
It is understood that the processor 21 may be a Central Processing Unit (CPU), a Micro Controller Unit (MCU), a Field Programmable Gate Array (FPGA), or the like. The MCU is illustrated in fig. 2 as an example.
And the standard color value is the color value of the standard color card acquired from the server.
Specifically, referring to fig. 2, in the embodiment of the present application, the color difference meter 20 may obtain the color value of the standard color chart from the server through the wireless module. The wireless module may include: the fourth generation mobile communication technology (4 g), the fifth generation mobile communication technology (5 g), or the wireless network (Wi-Fi) establishes a communication connection with the server, and acquires the color value of the color target card from the server.
Optionally, the color value of the standard color card in the server may be uploaded after being measured by the color difference meter, and stored in the server; in one specific example, the standard color target can be a "paint film color standard color target" and the colorimeter can measure the color values L of 83 standard color targets respectively 2n a 2n b 2n And the color card numbers T corresponding to 83 standard color cards n As sample name and L 2n a 2n b 2n The values are uploaded to the server for storage.
Specifically, in the embodiment of the present application, the deviation value between the sample color value and the standard color value can be calculated by formula (1).
ΔE n ＝[(L 2n -L 1 ) 2 +(a 2n -a 1 ) 2 +(b 2n -b 1 ) 2 ] 1/2 (1)
In the formula: delta E n Is the deviation of the sample color value from the nth standard color value; l is 2n The light and dark values of the nth standard color; a is 2n Red-green value for the nth standard color; b 2n Yellow-blue value for the nth standard color; l is 1 The light and dark values are the color of the sample; a is 1 Red-green value which is the color of the sample; b 2 Is the yellow-blue value of the sample color.
And 103, determining the deviation value as the color difference value of the color of the sample and the standard color card.
Optionally, in this embodiment of the application, after the color difference value between the color of the sample and the color chart is determined, the value may be output to the display screen for display, so that the user can view the value. In some possible manners, the information can also be sent to other display devices (for example, a mobile phone, a tablet computer, a notebook computer or an iPad) through the wireless module for displaying.
It is understood that, in determining the color difference value, the color value of the sample may be calculated by comparing the color value of the sample with the color value of a fixed single standard color chart. For example, taking the color of a certain color number as an example, when the lipstick of the color number is produced, the color value of the sample lipstick can be measured and compared with the standard color value corresponding to the color number to obtain the color difference value; therefore, whether the color of the sample is qualified or not can be judged quickly.
According to the embodiment of the application, when an instruction for measuring the color of the sample is received, the color of the sample is measured firstly to obtain the color value of the sample; and then, downloading the color values of the standard color card from the server, and calculating the deviation value of the color values of the sample and the standard color card to quickly obtain the color difference value of the sample color and the standard color card. Like this, can directly download the colour value that obtains the standard colour chip from the server, different mills can obtain the same colour value of same standard colour chip when producing same material, can avoid causing the inconsistent problem of standard colour chip colour because of the save of standard colour chip, consequently, can improve the uniformity of product colour.
Further, referring to fig. 3, fig. 3 is a flowchart of another implementation of the color difference measuring method provided in the embodiment of the present application. The color difference measuring method provided by the embodiment of the application comprises the following steps of:
Specifically, for the detailed description of step 301 to step 303, reference may be made to the description of step 101 to step 103, which is not described herein again.
And step 304, determining the sample name corresponding to the standard color card with the minimum deviation value as the color number of the sample color.
Wherein each standard color value corresponds to a sample name. As mentioned above, the color value L of the standard color chart is measured 2n a 2n b 2n And when the color value of the standard color card is obtained, and the sample name is stored in the server through the mapping relation table.
Specifically, it can be seen from formula (1) that a deviation value Δ E is obtained by calculating the color value of the sample and the color value of each standard color card, and the sample name corresponding to the standard color card corresponding to the Δ E with the smallest deviation value is determined as the color number of the current sample by comparing the n deviation values Δ E.
Therefore, the operator can allocate the corresponding color according to the formula of the color number of the corresponding color, the color allocation efficiency can be improved, and the consistency of the allocated color can be ensured. The problem of poor product consistency is avoided.
And 305, receiving the identification number of the color difference meter associated with the server, which is sent by the server, under the condition that the second operation instruction is received.
Each color difference meter corresponds to an identification number; the second operation instruction is an instruction for sharing the color information of the current sample.
Specifically, each color difference meter has a unique identification number (which may be an eight-bit number) when it leaves the factory, and in some possible cases, the unique identification number of the color difference meter may also be a MAC address. The color difference meter can be associated with the server through the wireless module, and the server can identify the unique identification number of the associated color difference meter.
In the embodiment of the application, after the sample number of the sample color is input, the color value and the sample number of the current sample can be shared with other color difference meters, specifically, after the second operation instruction is received, the identification numbers of the color difference meters associated with the server can be acquired from the server, and the identification numbers can be displayed on a display screen for a user to select (for example, full selection, click selection, frame selection, or the like).
Specifically, in the embodiment of the present application, information such as a sample name and a color value of the current sample may be sent to the server, and then the server forwards the information to the color difference meter selected by the user.
Therefore, when different manufacturers produce the same material (such as lipstick, dye and the like), the color of the sample can be ensured to be completely the same, and the condition that the color of the same material is inconsistent is avoided.
It is understood that the sample refers to the article whose color is measured by the colorimeter, and thus, the sample may also be a standard color chart. After the color difference meter measures the standard color chart, the obtained color value can be the color value of the standard color chart.
It can be understood that, before the color difference meter is used, color information (for example, color information of a standard color chart) shared by other color difference meters to the current color difference meter may also be imported from the server, and therefore, the color difference measurement method provided in the embodiment of the present application may further include: and under the condition of receiving an operation instruction for importing the color information, importing the color information of the sample shared to the current color difference meter from the server.
Specifically, the operation of importing the color information may be performed by the user before step 301 or after step 306, which is not limited in this embodiment of the application. Similarly, the user may also trigger an operation instruction for importing color information through a physical key or a virtual key on the touch screen.
Optionally, a memory may be provided in the colorimeter, and the memory may store the imported color information for further use.
It will be appreciated that, since other colorimeters associated with the server may also measure other samples or standard color plates, the color information is shared with the server or the current colorimeter by sharing after measurement. Therefore, when the color difference meter is started, in the embodiment of the application, the color difference meter can be connected with the server through the wireless module, and whether the version of the standard color card library is updated or whether other color difference meters share the color with the current color difference meter is detected, if so, the color information can be imported again, and the standard color card library of the current color difference meter is updated.
Optionally, the color difference meter may not be used for a long time, and the device parameters may have a certain inaccuracy, so that after the standard color card library is updated, before the color of the sample is measured, the color difference measurement method provided in the embodiment of the present application may further include:
and under the condition of receiving the calibration operation instruction, acquiring the color value of the calibration white board.
Specifically, in this embodiment of the application, the calibration white board may be a pure white standard color chart, and the color value of the calibration white board is pure white.
And calibrating the measurement parameters of the color difference meter according to the color value of the calibration white board.
Therefore, the condition that measurement is inaccurate due to the change of measurement parameters of the color difference meter can be avoided, and the accuracy of color measurement of the sample can be effectively improved.
The measurement parameters of the color difference meter may include the light intensity of white light emitted by the LED lamp, the sensitivity of the detector, and the like.
In an alternative example, after determining the deviation value as a color difference value of the color of the sample and the standard color chart, the method for measuring color difference provided by the embodiment of the present application may further include:
and judging the size of the color difference value and a preset color difference threshold value.
The preset color difference threshold may be set by the user through the display screen, the physical key, or the virtual key. Specifically, the preset color difference threshold may be determined according to an execution standard such as a national standard, an enterprise standard, or an industry standard.
Determining that the color of the sample is qualified under the condition that the color difference value is less than or equal to a preset color difference threshold value; and determining that the color of the sample is unqualified under the condition that the color difference value is larger than a preset color difference threshold value.
Therefore, whether the color of the sample is qualified or not can be conveniently detected. For example, when the sample is supplied by an external factory or an external enterprise, whether the quality standard requirement is met can be quickly detected. The quality detection efficiency of the color of the sample is improved.
Referring to fig. 4, fig. 4 is a block diagram of a color difference detection apparatus according to an embodiment of the present application. According to a second aspect of the embodiments of the present application, there is provided a color difference measuring apparatus 40, including:
the obtaining module 41 is configured to obtain a color value of a sample under the condition that a first operation instruction is received, where the first operation instruction is an instruction for measuring a color of the sample;
a calculating module 42, configured to calculate a deviation value between the color value of the sample acquired by the acquiring module 41 and a standard color value, where the standard color value is a color value of a standard color chart acquired from a server;
and a determining module 43, configured to determine the deviation value calculated by the calculating module 42 as a color difference value between the color of the sample and the standard color chart.
Optionally, the determining module 43 is further configured to determine the sample number corresponding to the standard color chart with the minimum deviation value of the sample color value as the color number of the sample color.
Optionally, the color difference measuring apparatus 40 provided in this embodiment of the present application further includes a receiving module 44, configured to receive, when a second operation instruction is received, an identification number of a color difference meter associated with the server, where each color difference meter corresponds to one identification number; the second operation instruction is an instruction for sharing the color information of the current sample;
a sending module 45, configured to, in case a selected operation on the identification number is received; sending the color information of the current sample to a color difference meter corresponding to the selected identification number, wherein the color information of the sample comprises: sample name and color value.
Optionally, the color difference measuring apparatus 40 provided in this embodiment of the present application further includes an importing module 46, configured to import, from a server, the color information of the sample shared with the current color difference meter when receiving an operation instruction for importing the color information.
Optionally, the obtaining module 41 is further configured to, in a case that the calibration operation instruction is received, obtain a color value of the calibration whiteboard;
optionally, the color difference measuring apparatus 40 provided in this embodiment of the present application further includes a calibration module 47, configured to calibrate a measurement parameter of the color difference meter according to the color value of the calibration white board acquired by the acquisition module 41.
Optionally, the color difference measuring apparatus 40 provided in this embodiment of the present application further includes a determining module 48, configured to determine a size of the color difference value and a preset color difference threshold;
the determining module 43 is further configured to determine that the color of the sample is qualified when the color difference value is smaller than or equal to the preset color difference threshold value as the determination result of the determining module 48; and determining that the color of the sample is unqualified under the condition that the color difference value is larger than the preset color difference threshold value as a judgment result of the judgment module 48.
It should be noted that the device embodiment and the method embodiment of the present application have the same or corresponding technical effects, and are not described in detail in this embodiment.
Referring to fig. 5, fig. 5 is a block diagram of a color difference measuring instrument according to an embodiment of the present application. According to a third aspect of the embodiments of the present application, there is provided a color difference measuring instrument 50, including: a memory 51, a processor 52 and a communication bus 53;
specifically, in the embodiment of the present application, the processor 52 may be any one of the aforementioned CPU, MCU, or FPGA.
The memory 51 is connected to the processor 52 in communication via a communication bus 53;
the memory 51 stores computer-executable instructions, and the processor 52 is configured to execute the computer-executable instructions to implement the color difference measuring method provided in any optional implementation manner of the first aspect of the embodiment of the present application.
It should be noted that the device embodiment and the method embodiment of the present application have the same or corresponding technical effects, and are not described in detail in this embodiment.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system is apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components of a color difference measurement method, apparatus, and color difference meter in accordance with embodiments of the present invention. The present invention may also be embodied as devices or device programs (e.g., computer programs and computer program products) for performing some or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website, or provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A color difference measuring method, characterized by comprising:
under the condition that a first operation instruction is received, obtaining a color value of a sample, wherein the first operation instruction is an instruction for measuring the color of the sample;
calculating a deviation value of the color value of the sample and a standard color value, wherein the standard color value is a color value of a standard color card acquired from a server;
determining the deviation value as a color difference value of the color of the sample and the standard color card;
each standard color value corresponds to a sample name, and after determining the deviation value as the color difference value of the color of the sample and the standard color chart, the method further comprises:
determining the sample name corresponding to the standard color card with the minimum deviation value as the color number of the sample color;
after determining the sample name corresponding to the standard color chart having the smallest deviation value of the sample color values as the color number of the sample color, the method further includes:
under the condition of receiving a second operation instruction, receiving identification numbers of color difference meters which are sent by a server and are associated with the server, wherein each color difference meter corresponds to one identification number; the second operation instruction is an instruction for sharing the color information of the current sample;
in the event that a selected operation is received on the identification number; sending the current color information of the sample to a color difference meter corresponding to the selected identification number, wherein the color information of the sample comprises: sample name and color value.
2. The color difference measurement method according to claim 1, wherein before the obtaining the color value of the sample, the method further comprises:
and under the condition of receiving an operation instruction for importing color information, importing the sample color information shared to the current color difference meter from the server.
3. A color difference measuring method according to claim 2, characterized in that said sample comprises a standard color chart.
4. The color difference measurement method according to any one of claims 1-3, characterized in that before the obtaining of the color value of the sample, the method further comprises:
under the condition that a calibration operation instruction is received, obtaining a color value of a calibration white board;
and calibrating the measurement parameters of the color difference meter according to the color value of the calibration white board.
5. A color difference measuring method according to any one of claims 1 to 3, wherein after determining the deviation value as a color difference value of the color of the sample from the standard color chart, the method further comprises:
judging the size of the color difference value and a preset color difference threshold value;
determining that the color of the sample is qualified under the condition that the color difference value is less than or equal to the preset color difference threshold value;
and determining that the sample color is unqualified when the color difference value is larger than the preset color difference threshold value.
6. A chromatic aberration measuring apparatus, comprising:
the device comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the color value of a sample under the condition of receiving a first operation instruction, and the first operation instruction is an instruction for measuring the color of the sample;
the calculation module is used for calculating a deviation value of the color value of the sample and a standard color value, wherein the standard color value is a color value of a standard color card acquired from a server;
a determining module for determining the deviation value as a color difference value of the color of the sample and the standard color card; determining the sample name corresponding to the standard color card with the minimum deviation value as the color number of the sample color;
the receiving module is used for receiving identification numbers of the color difference meters which are sent by the server and are associated with the server under the condition of receiving a second operation instruction, wherein each color difference meter corresponds to one identification number; the second operation instruction is an instruction for sharing the color information of the current sample;
a sending module for receiving the selected operation of the identification number; sending the current color information of the sample to a color difference meter corresponding to the selected identification number, wherein the color information of the sample comprises: sample name and color value.
7. A color difference measuring instrument, comprising: a memory, a processor and a communication bus;
the memory is in communication connection with the processor through the communication bus;
the memory has stored therein computer-executable instructions for execution by the processor to implement the method of any one of claims 1-5.
8. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed, perform the method of any one of claims 1-5.
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| CN202110038218.6A CN112880831B (en) | 2021-01-12 | 2021-01-12 | Chromatic aberration measuring method and device and chromatic aberration measuring instrument |
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