JP2006258683A - Colorimetric device, colorimetric method and colorimetric program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a colorimetric device, colorimetric method and a colorimetric program, with which the usage distinction of line scan and spot scan can be properly done. <P>SOLUTION: By first executing the line scan having high colorimetry efficiency and a small load, overall colorimetry can be performed smoothly. However, in the line scan, there may be cases where colorimetry will not be performed normally, because a manual colorimetry machine 30 moves for colorimetry. Accordingly, for a color patch P, whose colorimetric results in the line scan is normal, spot scan is made to be executed so as to obtain a proper colorimetric result. As a result of this, a colorimetric result table 12b, where eventually proper colorimetric result is described, can be formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a color measurement device, a color measurement method, and a color measurement program.

Conventionally, as this type of color measurement device, a color patch having an abnormality in a color measurement value is known which displays a warning mark in the color measurement result (see, for example, Patent Document 1).
According to such a configuration, the user can recognize the color patch on which the warning mark is displayed, and the color patch can be remeasured.
JP 2002-94820 A

However, if the warning mark is simply displayed, the user will perform color measurement of the color patch with the warning mark again using a low-reliability color measurement method, and an abnormal color measurement result will be obtained again. There was a problem. In particular, as a colorimetry method using a manual colorimeter, a line scan that measures color patches in columns or rows while scanning the manual colorimeter, and a manual colorimeter for each color patch are stopped. Since there is a spot scan that performs colorimetry, it is necessary to direct users to use these methods properly.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a color measurement device, a color measurement method, and a color measurement program that can be used appropriately for line scan and spot scan.

Means and actions / effects for solving the problem

  In order to achieve the above object, in the invention according to claim 1, color measurement of the color patch is performed by scanning a manual colorimeter equipped with a color measurement sensor on a color chart in which a plurality of color patches are arranged. Done. The color chart display means displays a chart image imitating the color chart on the UI screen. The line scanning unit sequentially receives the color measurement results by the manual colorimeter for the color patch group in one row or one row. Accordingly, the color patch group in one row or column can be scanned by the manual colorimeter, and the color measurement result of the color patch group in one row or column can be obtained. Further, at that time, the line scanning unit highlights the portion corresponding to the color patch group of one row or one column in the chart image, so that it is possible to easily specify the portion where the line scanning should be performed on the color chart. .

  On the other hand, the spot scanning unit receives the color measurement result for the color patch for which the color measurement result received by the line scan unit is abnormal. At that time, the spot scanning unit highlights a portion corresponding to the color patch which is the abnormality in the chart image. As a result, it is possible to easily identify the color patch in which an appropriate color measurement result cannot be obtained by the line scanning means or the credibility of the color measurement result is doubtful, and color measurement can be individually performed for the color patch. . That is, since only the specific color patch is highlighted, it is possible to direct spot scanning to measure the color patch individually. According to the spot scanning means, the colorimetric sensor can be stopped on the color patch and the colorimetry can be performed. Therefore, there is a high possibility that the abnormality is eliminated.

  As a preferred example of the chart image, in the invention according to claim 2, in the chart image, the display mode of the area corresponding to the color patch that has been measured and the area corresponding to the color patch that has not been measured are displayed. By making the display mode different, it is possible to recognize how many color patches of the color patch have been completed.

  Further, as a preferred example of the condition for switching to the spot scanning unit, in the invention according to claim 3, the spot scanning unit is detected when the color patch having an abnormal color measurement result is detected by the line scanning unit. The emphasis display and the colorimetry result are received by. That is, it is possible to prompt the spot scanning unit to perform re-color measurement individually for the color patch that is an abnormal color measurement result in the line scanning unit.

  Furthermore, as another example of the conditions for switching to the spot scanning means, in the invention according to claim 4, an instruction to perform spot scanning is accepted on the UI screen. When the instruction is accepted, the highlighting and the colorimetric result are accepted by the spot scanning means. That is, when the user desires re-measurement of the color patch having an abnormality in the color measurement result, the color measurement can be performed again for the color patch by the spot scanning unit.

  In the invention according to claim 5, the color patch in which the color measurement result is abnormal is displayed by performing an abnormal display on a part corresponding to the color patch in which the color measurement result in the chart image is abnormal. It can be easily confirmed.

  Furthermore, as a specific example of the abnormality display, in the invention according to claim 6, since the display mode of the abnormality display can be changed according to the type of abnormality of the colorimetric result, which color patch is what abnormality Can be easily recognized.

  Of course, the above invention can be realized not only by the color measuring device but also by a color measuring method corresponding to the color measuring device as in claim 7. Further, the present invention can be realized by a color measurement program that executes processing according to the color measurement method as in claim 8. Further, the inventive idea is that the apparatus, method, and program according to the present invention may be implemented independently, or may be implemented together with other apparatuses, methods, and programs while being incorporated in a certain device. Is not limited to this, and includes various aspects, and can be changed as appropriate.

  Further, it can be provided as a recording medium on which the program of the present invention is recorded. The recording medium for this program may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium that will be developed in the future. In addition, the duplication stages such as the primary duplication product and the secondary duplication product are equivalent without any question. Further, even when a part is software and a part is realized by hardware, the idea of the invention is not completely different, and a part is stored on a recording medium and is appropriately changed as necessary. It may be in the form of being read. Further, not all functions are necessarily realized by a single program, but may be realized by a plurality of programs. In this case, what is necessary is just to make each function implement | achieve in a some computer.

Here, embodiments of the present invention will be described in the following order.
(1) Color measuring device and processing:
(2) Modification:

(1) Color measuring device and processing:
FIG. 1 is a flowchart showing a process for performing colorimetry according to the present invention, and FIG. 2 is a block diagram showing a configuration of a computer for executing the process. The computer 10 includes an arithmetic processing unit 11 that executes arithmetic processing using hardware such as a CPU and a RAM, and an HDD 12 that stores data. A manual colorimeter 30 is connected to the computer 10 via a USB interface (not shown), and a colorimetric value obtained by performing color measurement with the manual colorimeter 30 can be acquired. . In the arithmetic processing unit 11, a driver 13 that mediates between the manual colorimeter 30 and the computer 10 and a colorimetry program 14 for performing colorimetry using the manual colorimeter 30 are executed.

  In addition, a display 40 is connected to the computer 10 via a video interface (not shown), and a UI screen output from each module of the driver 13 and the color measurement program 14 can be displayed on the display 40. . Further, an input device 45 such as a mouse or a keyboard is connected to the computer 10 via an input interface (not shown) so that an input from the input device 45 can be received.

  FIG. 3 shows a color chart 50 that is a colorimetric object of this embodiment. In the figure, a color chart 50 is created by printing on a predetermined printing paper, and a plurality of color patches P are arranged in a matrix at the center of the printing paper. In addition, FIG. 2 illustrates a color chart 50 provided with 22 rows × 12 columns of color patches P. Although not shown, each color patch P is given a different color. The column number is represented by a variable m, and the row number is represented by a variable n. A color chart No. indicating the type of the color chart 50 is provided outside the area where the color patches P are arranged. Is printed. The color chart 50 is printed in advance by a printing device connected to the computer 10 or another printing device, and is placed on a flat table (not shown).

  FIG. 4 shows the manual colorimeter 30 as viewed obliquely. In the figure, the manual colorimeter 30 is a hand scanner type that can be held and handled with one hand. A colorimetry start switch 31 is provided on the side of the manual colorimeter 30. A colorimetric sensor 32 having a light receiving portion oriented downward is provided on the lower surface of the front end portion of the manual colorimeter 30. The color measurement sensor is a photoelectric element that inputs light through a predetermined optical system from a color measurement object that is substantially in contact with the lower surface of the front end portion of the manual colorimeter 30 and generates an electrical signal corresponding to the light. . The manual colorimeter 30 is also provided with an A / D conversion circuit that converts an electrical signal generated by the colorimetric sensor 32 into a digital signal. The colorimetric value based on the digital signal is sent to the computer 10. Output. Further, the colorimetric sensor 32 receives light while the colorimetry start switch 31 is being pressed, and a colorimetric value is output to the computer 10.

In the present embodiment, the manual colorimeter 30 acquires coordinate values in the L ^* a ^* b ^* space corresponding to the digital signal obtained from the A / D conversion circuit, and uses the L ^* a ^* b ^* coordinate values. The colorimetric value is output to the computer 10. In addition, a state in which a colorimetric value cannot be obtained even though the colorimetric start switch 31 is pressed by the manual colorimeter 30 and colorimetry is performed (this state is referred to as “colorimetry is impossible. When the same occurs), a colorimetry-disabled signal to that effect is output to the computer 10.

  FIG. 2 shows an example of a UI screen for accepting an input. In step S100 of FIG. Accepts input. In FIG. A color chart No. corresponding to the color chart for colorimetry is displayed. It is possible to select. Note that the user can print the color chart No. Can be selected on the UI screen. In step S105, the color chart No. selected in step S100. A chart image corresponding to is displayed.

  FIG. 6 shows an example of a UI screen on which a chart image is displayed. In the figure, chart images T simulating the arrangement of the color patches P shown in FIG. 3 are arranged on the UI screen. That is, in the chart image T, as in the color chart 50 shown in FIG. 3, an array of 22 rows × 12 columns of color patches P is displayed. The chart image T only needs to be able to schematically show the arrangement of the color patches P at least, and the colors of the color patches P may be accurately reproduced, or only the arrangement of the color patches P is indicated by lines or the like. It may be displayed. In the present embodiment, it is assumed that the color of each color patch P in the chart image T is accurately reproduced by color display. The HDD 12 has a color chart no. The chart image data 12a corresponding to each chart image T is stored. The input unit 14d receives the color chart No. specified by the user from the input device 45. The color chart No. Is input to the chart image display unit 14b. Is read out and displayed on the display 40.

  In step S110, the highlighting unit 14c substitutes 1 for the column number n. In step S150, the highlighting unit 14c displays the cursor Q in the nth column. Since the column number n = 1 at this time, the cursor Q is displayed in the first column. The cursor Q is a figure with a rectangular frame shape, and is displayed so as to surround the color patch P corresponding to the first column in the chart image T. In this way, the user can move the manual colorimeter 30 to the first column on the color chart 50 while looking at the UI screen.

  If it is detected in step S120 that the colorimetry start switch 31 of the manual colorimeter 30 is pressed, the determination unit 14a performs colorimetry on the color patch P in the (n = 1) column in step S125. Get the value. Specifically, the determination unit 14 a acquires a colorimetric value via the colorimetric value acquisition unit 13 a of the driver 13. The user scans the manual colorimeter 30 with the color patch P in the first column on the color chart 50 in ascending order of the row number m, and the colorimetric sensor 31 scans the color patch P in the first column with the row number. Light is received in ascending order. Then, colorimetric values for each color patch P in the first column are generated, and the determination unit 14a sequentially acquires the colorimetric values in ascending order of row numbers. Note that it is only necessary to be able to point to a column whose colorimetric values are waiting for input, and display modes other than the cursor Q can be applied as highlighting. For example, only the target column can be emphasized by changing the color tone or performing enlarged display.

In step S130, the determination unit 14a performs abnormality determination. The determination unit 14a receives the color chart No. input from the input unit 14d in step S100. The color chart No. The reference value 12c prepared for each is acquired from the HDD 12. The reference value 12c is the color chart No. Is a table in which design reference L ^* a ^* b ^* values of the color patches P arranged on the color chart corresponding to are described. The smaller the color difference ΔE between the reference L ^* a ^* b ^* value and the colorimetric value obtained by the manual colorimeter 30, the better the color reproducibility of the printing apparatus that has printed the color chart 50. Judgment can be made.

For each color patch P in the first row, the determination unit 14a calculates a color difference ΔE between the reference L ^* a ^* b ^* value and the actual colorimetric value, and if the color difference ΔE exceeds a predetermined threshold value, It is determined that the color measurement result for the patch P is invalid. On the other hand, when the color difference ΔE is below a predetermined threshold, it is determined that the color measurement result for the color patch P is normal. The threshold value is set to a color difference ΔE that is suspected that the colorimetry in the manual colorimeter 30 is not normally performed. That is, if the colorimetric value is obtained by the manual colorimeter 30, but the color difference ΔE from the reference L ^* a ^* b ^* value is significantly large, the colorimetric result of the color patch P is incorrect. Judge that there is. For the color patch P for which the colorimetry disable signal is output from the manual colorimeter 30, the determination unit 14a determines that the colorimetry result of the color patch P is not colorimetric. In step S135, the color measurement result is stored in the color measurement result table 12b of the HDD 12.

FIG. 7 shows the color measurement result table 12b. In the figure, the L ^* a ^* b ^* value obtained by measuring colors for each color patch P formed on the color chart 50 is described, and the color patch P determined to be invalid in step S130 is illegal. It is stated that there is. Further, it is described that the color patch P for which the colorimetric value is not obtained by the manual colorimeter 30 cannot be measured. Further, since the color measurement is completed for only the first column at the present time, the color measurement result is described only in the portion corresponding to the color patch P in the first column in the color measurement result table 12b.

  In step S140, the highlighting unit 14b reads the color measurement result table 12b from the HDD 12, and detects a color patch P having an abnormal color measurement result. That is, in the color measurement result table 12b, the color patch P described as illegal or color measurement impossible as the color measurement result is detected. Here, if the color patch P described as illegal or colorimetric impossible is not detected as a color measurement result, it is determined in step S145 whether the column number n is the last column. In the present embodiment, since all 12 columns are provided, it is determined whether n = 12. If n = 12, the portion up to the nth column in the chart image T is displayed in monochrome in step S150, assuming that the color measurement is normally completed. As a result, the color patch P for which the color measurement has been completed normally and the color patch P for which the color measurement has not been completed can be easily identified on the chart image T.

Next, 1 is incremented to n in step S155, and step S115 and subsequent steps are executed again. By repeating step S115 and subsequent steps, the color measurement of the next column can be executed. On the other hand, if n = 12, the colorimetry process is completed assuming that the colorimetry of all the columns has been completed normally. At this point, since the color measurement result table 12b in which normal L ^* a ^* b ^* values are described for all the color patches P is obtained, a color conversion table is created using the color measurement result table 12b. And can be calibrated.

  As described above, by repeating steps S110 to S155, it is possible to realize a line scan that performs colorimetry for each column. When performing a line scan of each column, the column is highlighted by the cursor Q pointing to the column for which the colorimetric value is currently waiting to be input, so that the user can easily scan the actual color chart 50. The manual colorimeter 30 can be moved to an appropriate position to perform line scanning. In this sense, it can be said that each piece of hardware and software that executes steps S110 to S155 corresponds to the line scanning means of the present invention.

  Incidentally, in step S140, when a color patch P described as illegal or colorimetric impossible is detected as a color measurement result, step S160 and subsequent steps are executed. In step S160, the highlighting unit 14c displays an abnormal display at a portion corresponding to the abnormal color patch P in the chart image T. Abnormal color patches P include ones whose colorimetric values are incorrect and ones whose colorimetry is impossible, and each of them is abnormally displayed in a different manner.

  FIG. 8 shows the chart image T on which abnormality display has been performed. In the drawing, “!” Is displayed as an abnormal display at a position indicating a color patch P whose colorimetric value is incorrect, and “×” is displayed as an abnormal display at a position indicating a color patch P where colorimetry is not possible. Is displayed. By doing so, it is possible to easily grasp which color patch P the colorimetric result is incorrect or colorimetric impossible. Further, the abnormality display as described above may be performed, and the abnormality may be notified by sound such as a buzzer. For example, when a normal colorimetric value is acquired, a high buzzer sounds a short buzzer, when an incorrect colorimetric value is acquired, a low buzzer sounds a short buzzer, and when colorimetry is not possible, a low sound If a long buzzer sound is emitted, it is possible to recognize the goodness of the colorimetric result sensuously without looking at the UI screen. Here, the following description will be made assuming that the color measurement results of all five color patches P are abnormal. In addition, a serial number is assigned to the abnormal color patch P, and the same number is expressed as a number s. Further, the color patch P in which the color measurement result is abnormal is hereinafter referred to as an abnormal patch P.

  In step S165, 1 is substituted for the number s, and the subsequent processing is executed for the abnormal patch P having the number 1. In step S <b> 170, the part corresponding to the (s = 1 in chart image T) abnormal patch P is highlighted with the cursor R. Here, only the first abnormal patch P is indicated by the cursor R. In step S175, color measurement is performed for the abnormal patch P pointed to by the cursor R. That is, while viewing the chart image T, the user moves the manual colorimeter 30 onto the first abnormal patch P on the color chart 50 and presses the color measurement start switch 31. In step S180, the colorimetric value acquisition unit 13a waits for input of a colorimetric value for the abnormal patch P pointed to by the cursor R, and the abnormal patch P is detected in response to the pressing of the colorimetric start switch 31. Accepts input of colorimetric values.

In step S185, the determination unit 14a calculates the reference L ^* a ^* b ^* values of the abnormal patch P, and the color difference ΔE between the L ^* a ^* b ^* values obtained by actual measurement, the same color difference ΔE is the It is determined whether or not the threshold value is exceeded. Of course, it is also determined whether the abnormal patch P is not colorimetric. If color measurement is not possible and the color difference ΔE exceeds the threshold value, it is determined that the color measurement value is invalid, and the process returns to step S170 again to prompt color measurement for the abnormal patch P again. If the color difference ΔE exceeds the threshold value, the colorimetric value is normal and the colorimetry for the abnormal patch P is stored in the colorimetry result table 12b in step S190. Thereby, the color measurement of the abnormal patch P can be repeated until an appropriate color measurement value is obtained.

Next, whether or not the number s of the abnormal patch P is final (s = 5) is determined in step S195, and if it is not final, 1 is incremented to s in step S200. When 1 is incremented to s, the process returns to step S170 to perform color measurement for the next abnormal patch P. That is, the colorimetry is sequentially executed for each abnormal patch P determined to be abnormal in the line scan. By doing in this way, the color measurement of the abnormal patch P can be repeated in order until normal color measurement values are obtained for all the color patches P in the row. Therefore, in the color measurement result table 12b, the color measurement results described as illegal or color measurement not possible can be sequentially rewritten to appropriate L ^* a ^* b ^* values.

  On the other hand, if it is determined in step S195 that the number s of the abnormal patch P is final, it is determined in step S145 whether the column to which the abnormal patch P belongs is final. That is, it is determined whether or not the column in which the color measurement for all the abnormal patches P is normally completed is the last column. If it is determined that the column is the last column, the colorimetric values of all the color patches P are properly obtained and the process is terminated. On the other hand, if it is determined in step S145 that it is not the last column, the process returns to step S115 to execute the line scan for the next column.

  As described above, it is possible to realize spot scanning in which color measurement is performed for each individual color patch P by repeatedly performing steps S160 to S200. When spot scanning is performed, the user can easily perform an actual color chart 50 because the color patch P is highlighted by the cursor R pointing to the color patch P for which colorimetric values are currently waiting to be input. The spot color scan can be performed by moving the manual colorimeter 30 to an appropriate upper position. In addition, since the cursor R automatically moves with respect to the abnormal patch P, color measurement can be performed only for the abnormal patch P for which color measurement was not properly performed by line scanning. In this sense, it can be said that each piece of hardware and software that executes steps S160 to S200 corresponds to the spot scanning means of the present invention.

  In steps S165 to S200, the abnormal patch P in which the colorimetric result is invalid and the abnormal patch P in which the colorimetric result is not colorimetric are handled in the same manner, but there is a difference in the handling of these. May be. For example, the spot scanning may be prompted again only for the abnormal patch P whose colorimetry result is not colorimetric, or the order is set so that the abnormal patch P whose colorimetry result cannot be colorimetric is spot-scanned first. You may make it prescribe | regulate.

  In this way, by performing the line scan with high colorimetry efficiency and less labor first, the entire colorimetry can be performed smoothly. However, in the line scan, since the colorimetry is performed while the manual colorimeter 30 is moving, the colorimetry may not be performed normally. Therefore, spot scanning is executed for the color patch P in which the color measurement result is abnormal in the line scan, and an appropriate color measurement result is obtained. Since the highlight display (cursors Q, R) is different between the line scan and the spot scan, the user can perform color measurement by a preferable color measurement method. As a result, the color measurement result table 12b in which appropriate color measurement results are finally described can be created. According to the present invention, it is possible to support the user to perform color measurement using the above-described color measurement procedure as a guidance for the highlight display (cursors Q, R) in the chart image T.

(2) Modification:
In the previous embodiment, when an abnormal color patch P is detected in the color measurement result of the line scan, the mode is forcibly shifted to the spot scan. However, the user may have some degree of freedom. For example, the user may arbitrarily select either line scan or spot scan.

  FIG. 9 shows an example of a UI screen that allows selection of line scan and spot scan. In the figure, it is possible to check either a line scan or a spot scan, and the input unit 14d can accept the operation. Also, cursor movement buttons for up / down / left / right are provided, and the user can move the column selection cursor Q and the color patch selection cursor R to arbitrary positions. As described above, even in a configuration in which the user can arbitrarily select either line scan or spot scan, the abnormal patch P in which the color measurement result is abnormal is displayed with an abnormality, and the spot with respect to the abnormal patch P is Can prompt scanning.

  FIG. 10 shows a flow of processing capable of prompting spot scanning for the abnormal patch P in a configuration in which either line scanning or spot scanning can be arbitrarily selected. For example, when the user switches to spot scanning at any stage, the color patch P describing an abnormal color measurement result is searched with reference to the color measurement result table 12b (step S1100), and the abnormal patch P Is displayed (step S1120), and the cursor R is moved to one of the abnormal patches P (step S1140). By doing so, it is possible to prompt re-color measurement (steps S1160 to S1180) for the abnormal patch P determined to be abnormal in the line scan performed in the past. Therefore, when the user desires re-measurement, spot scanning can be performed in order from the color patch P that needs re-measurement.

  Note that if an abnormal patch P is not detected in step S1110 of FIG. 10, it is sufficient to accept a cursor movement by the user in step S1210. In this case, since there is no color patch P that preferentially performs re-color measurement, the color measurement order is left to the user's selection. If spot scanning is selected without performing line scanning from the beginning, the process proceeds to step S1210 without detecting an abnormal patch P. Similarly, color measurement is performed in the order of color measurement according to the user's selection. Can be made.

It is a flowchart which shows a colorimetric process. It is a block diagram of a computer. It is a figure which shows a color chart. It is a perspective view of a colorimeter. It is a figure which shows UI screen. It is a figure which shows UI screen on which the chart image was displayed. It is a figure which shows a colorimetry result table. It is a figure which shows UI screen on which the chart image which has abnormality display was displayed. It is a figure which shows UI screen concerning a modification. It is a flowchart which shows the colorimetry process concerning a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Computer, 11 ... Arithmetic processing part, 12 ... HDD, 13 ... Driver, 13a ... Colorimetric value acquisition part, 14 ... Colorimetry program, 14a ... Determination part, 14b ... Chart image display part, 14c ... Highlight display part, 14d ... Input unit, 30 ... Colorimeter, 40 ... Display, 45 ... Input machine

Claims (8)

In a color measuring device for measuring a plurality of color patches arranged on a color chart by a manual color measuring device equipped with a color measuring sensor,
Color chart display means for displaying a chart image simulating the color chart on the UI screen;
Line scanning means for sequentially receiving the color measurement results by the manual colorimeter for the color patch group in one column or row and highlighting a portion corresponding to the color patch group in the chart image;
Spot scanning means for receiving the color measurement result for the color patch for which the color measurement result received by the line scanning means is abnormal, and for highlighting a portion corresponding to the color patch in the chart image; A colorimetric device comprising the colorimetric device.   The colorimetric apparatus according to claim 1, wherein a display mode of an area corresponding to the color patch whose color has been measured in the chart image is different from an area corresponding to the color patch whose color has not been measured.   2. The highlight display and the color measurement result are received by the spot scanning unit when the color patch having an abnormal color measurement result is detected by the line scanning unit. The colorimetric apparatus according to claim 2.   3. The highlight display and the colorimetry result are received by the spot scanning unit when an instruction to perform spot scanning is received on the UI screen. The colorimetric device according to any one of the above.   The colorimetric apparatus according to any one of claims 1 to 4, wherein an abnormality display is displayed at a portion corresponding to the color patch in which the colorimetric result in the chart image is abnormal.   6. The colorimetric apparatus according to claim 5, wherein the abnormality display has a different display mode depending on the type of abnormality of the colorimetric result. In a colorimetric method for measuring a plurality of color patches arranged on a color chart by a manual colorimeter equipped with a colorimetric sensor,
A color chart display step of displaying a chart image simulating the color chart on the UI screen;
A line scan step of sequentially receiving the color measurement results by the manual colorimeter for the color patch group in a row or row and highlighting a portion corresponding to the color patch group in the chart image;
A spot scan step of receiving the color measurement result for the color patch in which the color measurement result received in the line scan step is abnormal and highlighting a portion corresponding to the color patch in the chart image. A colorimetric method comprising: In a color measurement program for executing a function of measuring a plurality of color patches arranged on a color chart by a manual colorimeter equipped with a color measurement sensor on a computer,
A color chart display function for displaying a chart image simulating the color chart on the UI screen;
A line scan function for sequentially receiving color measurement results by the manual colorimeter for the color patch group in one column or row and highlighting a portion corresponding to the color patch group in the chart image;
A spot scan function for receiving the color measurement result for the color patch for which the color measurement result received by the line scan function is abnormal and for highlighting a portion corresponding to the color patch in the chart image; A color measurement program to be executed on a computer.

Images