TW510123B - Automatic color adjusting method using ICC profile and the system thereof - Google Patents

Abstract

The present invention are automatic color adjusting method using ICC profile and the system thereof, which are based on specific ICC profile, the input or output color blocks of color peripheral equipment are automatically measured, after the characteristic parameter analysis of comparing the difference between color blocks and specific ICC profile, the best-fit curve and optimization are utilized to automatically feedback for controlling and approaching the measured color value and simulated target color, the corresponding relationship between the input or output color values of peripheral equipment and the simulated target color is established, so as to accomplish the effect of adjusting the color parameters of the peripheral equipment.

Description

510123 V. Description of the invention (i) [Application field of the invention] The present invention relates to an automatic color adjustment method and system using a color profile, which can be applied to a production line of color peripheral equipment of a computer. [Background of the Invention] With the popularity of color peripheral devices, the problem of color consistency becomes more and more important. To this end, the International Color Association (Internatiolanal Consortium, ICC) has formulated a color characteristic plant (ICCP r 〇fi 1 e) to describe color peripheral devices, and provides a color management system to correct the color deviation of peripheral devices. Problems, and then achieve color consistency across platforms and media. The color profile covers the color space of the peripheral devices and the profile connection space (PCS). Generally, cieLAB, CIELUV or CIEXYZ is used as the color space conversion between peripheral devices. For color space conversion between shirt-colored peripheral devices, the color space of the source peripheral device must first be converted to the profile link space, and then the profile link space be converted to the color space of the destination peripheral device. Among them, the color profile negative = describes the information needed to convert the color space of the peripheral equipment and the connection space of the profile ’, and the color management system is responsible for the color conversion between devices. '' In order to meet the characteristics of most color peripherals, the color profile provides two types of color conversion models, a three-element matrix model (3-C〇mp〇nent ′,

Matrix based Model ·, hereinafter referred to as 3C — Matrix Model) AN element _ N-Component Look Up Table based Model (hereinafter referred to as MC-LUT model). Among them, the 3C-Matrix model provides (; money value or Gamma mapping table and 3x3 conversion matrix for color space conversion between peripheral equipment and profile link space, suitable for color space and profile link

510123

The mapping relationship between the two junction spaces is closer to linear devices (such as display devices and most input devices); the NC_LUT model provides a Gamma mapping table and a color space mapping table for color space conversion. It is suitable for devices with a non-linear mapping relationship between the color space and the profile connection space (such as printing devices and some input devices). Therefore, in general, the 3C-Matrix model requires less storage space, and the NC-LUT has more accurate color mapping results. At present, there are two ways for users to obtain equipment color profiles: The first method is to use color characteristics provided by off-the-shelf manufacturers. Such color profiles are generated by professional technical engineers using highly accurate equipment and software. This method The advantage is that the user does not need to invest a lot of time and effort, but in contrast, this pre-made color profile cannot express the same and different products of the same model, and the quality change of time is difficult to grasp. b ^ ^ The second method is for users to create color profiles by themselves. For printer users of output devices, first they must first print a large number of color patches containing fixed ink values, and measure these colors. Block, and then use the application to generate a color profile; for users of input devices, the user must first have a standard color draft and a standard environment to measure or provide the chromaticity value of each color block by the manufacturer. After taking the image, use the application to generate color characteristics. Usually these color manuscripts consist of 2000 to 400 color patches, and the entire color profile generation process is quite time-consuming and laborious. In addition, in the process of generating a color profile, human errors, instrumental errors, or differences in the measurement environment may affect the quality of the color profile. " U.S. Patent No. 6075888 discloses a method for establishing device color characteristics

510123 V. Description of the invention (3) The system of sex sandals can change the color profile, but it is mainly based on the basic color shirt profile to generate a new color profile, so only the automatic color feature slot editing, but it is not possible Correct the phenomenon of individual differences between devices. [Objective and Summary of the Invention] The main object of the present invention is to provide an automatic color adjustment method and system using color profiles to improve the accuracy of color performance of color peripheral devices. According to the disclosed automatic color calibration method and system using color characteristics according to the present invention, based on a specific color profile, the input or output color blocks (that is, output-type peripherals) of an automatic color peripheral device are based on a specific color profile. After analyzing the similarities and differences between the target color and the target color profile, the color blocks printed by the Weng Weng or the color blocks input by the input-type peripheral equipment are analyzed by color $. The curve and optimization use automatic values and control to approach the peripheral device input to output color value and analog target color system, 'establish the correspondence between the peripheral device input or output color value and the ideal color value to achieve the adjustment of peripheral color The effect of the parameter. In order to further the purpose, structural features, and functions of the present invention, the detailed description with the illustrations is as follows: Detailed description of the Ma Shi embodiment] As shown in the figure below, the use of color characteristics is disclosed in this creation The process of the color domination method is described as follows: Background color i :::: Initial = i.e., the out-color profile is used as the meaning color value and the second criterion: scale = color difference (color related to the color wheel in device) · Permissible difference in color value between soap colors (step 101). Mind five, description of the invention (4) Then input the color draft, that is, | w ~ ^ shooting, M f π # / t color shirt round-in equipment to capture the standard color draft image to capture its image (step 102), The color of the L ab space is quite even: = the richer the color draft, the better the coverage, but because the wider the number of color blocks, the two-color JV is usually the more the color gamut, the more experimental space is also to be expanded. The more time ', and the standard color draft includes two parts of n color patches, and the best, and

It is defined by the brightness level L *, Qiu Baichi Bai, Tian Jiu ... J Bi Beichang .. ^ Brother Yi 15-blade 疋 color block that evenly divides the chromaticity space 'In addition, the color draft Φ * c ^ ,, .V Λ ^ ^ ♦ Store colours in the £ domain should also be emphasized, such as pink, yellow and brown. Lu Shi nose color difference * ^ is the color difference between the color control image and the standard color draft (step 1 0 3), which contains 3J / a, .... Winq, ^ 'must be run Being talked about # 洛 命 ^ Jin Wu takes the color value of the color image and compares the color value with the color difference between the image and the standard color image. / 古 u r- ^ ^ ^, the color value is converted into chromaticity by using the selected M agent gland to correct the heart d. It mainly uses the positive phase in the color profile: the type will capture the g你 # YouShi.L Bar value conversion to color independent of color input device. This & forward model can be 3C-Matrix model (3 * 3 order) or 旲 _knife: use the nearest point of color space to find Outstanding values or the closest plural points in the shirt space are interpolated to find the two color values). Compare whether the color difference value is outside the aforementioned color difference tolerance value (step ^^ value is not outside the aforementioned color difference tolerance value, then end the color correction (+ step U7), if the color difference value is outside the aforementioned color difference tolerance value f Perform color correction, calculate and establish a calibration conversion function 7 that can convert the color characteristics of the color input Hanbei to determine the grayscale hue

Page 7 510123

Reconstruction curve and color conversion matrix (that is, the adjustment conversion function; step 105) 'where the grayscale tone reproduction curve is determined using the inverse model of the base color / characteristics to calculate the RGBref color value of the grayscale color block, The logarithm (ie, the optical density value) is taken individually, and the grayscale and RGBQ color values of the captured color image are logarithmic, and the differences between the two channels RGBref and RGB are compared individually. , To estimate the linear correspondence between the two, and establish individual TRC () for the three channels of rgbg. Similarly, use the inverse model of the base color profile to calculate the RGBref color values of the remaining color blocks to optimize The " algorithm estimates the color feedback control of both RGBref and the color block RGBq of the captured color image, that is, inputting the grayscale tone reproduction curve and color torque to the color input device (that is, adjusting the conversion function; Step 106). Perform color correction, that is, end the color correction (step 107). Generally speaking, one to two cycles of adjustment should achieve the ultimate color performance. The above-mentioned adjustment conversion function T is a corresponding conversion of RGb. The main B is to re-correspond the color signal of the original color input device to an accurate and specialized color input device color space, and the color profile is mainly ^ The base characteristic conversion function B is used to convert RGB and Lab. In the following, a digital camera is used as an example to introduce the calculation formula part in the above process. When shooting a standard color draft, the color value of the color block captured is RGbg: then the selected base characteristic conversion function B will be used. Color value rgb. The chromaticity value that is independent of the color input device is called ―, and this process is called analog conversion, and the formula is expressed as follows:

Labsimulathn = RGB. · B ...---- ("

Page 8 510123 V. Description of the invention (6) Assume that the target chromaticity value of the standard color manuscript is known as Labaim. Then, we calculate the color difference between Labsimulatic) n * Labaim and use the CIELAB color difference formula to calculate as follows: ΔΕ: , ^ {L- Laim) 2 + (a- aaim f + {b- baim) 2 ------ (2) Knowing that the target chromaticity value of the standard color manuscript is Labaim, use the base characteristic conversion function B The inverse conversion can calculate the reference signal color value RGBw of the color input device, RGBref = Labaim.B] ... (3) The present invention assumes that a calibration conversion function T exists between RGBQ and RGBref, the formula is as follows: RGB0 ^ T = RGBref ------ (4) T = RGB-lmRGBref ------ (5) Generally speaking, the base characteristic conversion function B consists of two parts. The first part is to linearize the data. It is called the tone reproduction curve (represented by TRCref). For example, the 3C-Matrix model provides Ga_a value or the NC_LUT model provides Gamma mapping table. The second part is the color space conversion (represented by 'M), such as a conversion matrix or two. Dimensional mapping table. Therefore, the present invention assumes that the adjustment conversion function T also includes two parts of the tone reproduction curve TR (: d and the color space conversion 屺 (as shown in "Figure 2"). T = TRC0®M0 ------ (6) First of all, the method of calculating TRQ is to use the traditional logarithmic function to linearly process RG & RGBref, and map RGBQ to the jealous linear correlation with RGB ^ as in formula (7). RGB, = TRC (RGB0 ) ... (7)

V. Description of the invention (7) Secondly, Μ〇 is summarized by the general line Ψί {: 异 / 土 欣 multivariable items. , 'Calculated by the method of taking noses and noses', for example, color loss = preparation: description;; = in "input device, and apply to the color equipment wheel draft, and use this ::::: 1 ° 2 for the Color output adjusts the color parameters of the color output device;

The automatic g # π P m using the color profile disclosed in the present invention is, for example, a floppy disk or a hard disk: a host computer 11, a storage media edge device (such as a scanner 13, a printed data sheet, a sub-fetcher ^, Body) and% color week curtain 16), among which the host computer 11 # disk, Γ table digital camera 15 and computer screen related eight "analysis and operation" ..., shirt color peripherals are connected for processing: analysis and transportation The storage medium 12 is connected to the host U and stores a color adjustment management program.]?] Color profile (that is, one associated color profile, and the printer °° 豆 、 Toilet, color; color characteristics of the official management system, and so on.) The machine 4 also has a color shape management system. Using the day guard, take the digital camera 15 in the input device as an example. You must first No; Yanpao: on the platform, and using digital camera 15 to capture color manuscripts and convert them to = GanίΪ Use the color profile to convert the color values of the extracted color manuscripts to horse chromaticity values' and compare them with the table old &# Α # The color difference 'uses the adjustment conversion function to convert the number: camera 15: = ::: color = shooting to extract the color value of the color draft "d = = or Same; the printer 14 in the output device is the color handle first P out 'use color measurement instruments (such as: spectrum meter) to read or measure 123 V. Description of the invention (8) printed color manuscript The color value of the color printing medium 12 of the color storage medium 12 is almost the same or the same, and its color characteristics are adjusted. [Effects achieved] According to the method and system of the present invention, the characteristics of the color peripheral equipment are matched with the yield of the k Γ% product. The above is not used to limit the equal variation value made by the hair circumference. The value is sent back to the host u, the color characteristic slot is used for further processing, and the color value of the reference color manuscript described in the color shirt property description is used, while other color peripherals adjust the disclosed automatic color adjustment using the color profile in the same way. The color characteristic parameters can be produced by an existing color profile to directly adjust the color specific color profile of the device to achieve the best image quality. 0 'is only the preferred embodiment of the present invention, and The scope of implementation of the invention; that is, all patent application and modification according to the invention are covered by the scope of the invention patent. 510123 Brief Description of Drawings Figure 1 is a flowchart of the method of the present invention. FIG. 2 is a schematic diagram of a color adjustment function of the present invention. Figure 3 is a schematic diagram of the system of the present invention. [Illustration of Symbols]

11 Main unit 12 Storage media 121 Color calibration manager 13 Scanner 14 Printer 15 Digital camera 16 Computer screen

Page 12

Claims (1)

6. The automatic color adjustment method of the patent application file includes the following steps h — a step using color characteristics: value; initial setting: select-color characteristic slot, and determine the color difference allowable 2) color draft. Input equipment with color shirt Capture-color image; color difference value π color difference · calculate a color difference between the color image and a reference color image to determine the relationship between the color difference and a color difference allowable value · determine that the color difference value is within the color difference allowable value Outside; establishing a color feature: determining a calibration conversion function; and for feedback control: inputting the calibration conversion function to the device. The automatic color adjustment method using a color profile as described in item 1 of the above-mentioned patent scope, wherein the step of calculating the color difference includes: obtaining a color value of the color draft image; converting the color value into a chromaticity; comparing the color draft image And the color difference of the reference color. ^ Automatic color using color profile as described in item 2 of the patent scope, § weekly calibration method, wherein the step of converting color value to chromaticity includes the following steps: Use the color profile to generate chromaticity independent of the device Value; a positive model of the color profile is used to convert the captured color value to a chromaticity value independent of the device. The automatic color calibration method using a color profile as described in item 3 of the patent application scope, wherein the forward mode is a three-element matrix model 510123 6. Scope of patent application (3-Component Matrix based Model) 〇 5 · The self-adjusting method using color profile as described in item 4 of the scope of patent application, wherein the three-element matrix model is of order 3 * n. 6 · Self-adjustment method using color profile as described in item 3 of the scope of patent application 'wherein the forward model is an N-Component Look up Table based Model 〇 7 · The self-tuning method using color profiles according to item 6, wherein the N-element look-up table model can use the nearest sharp value. 8 · The self-adjusting method using the color profile as described in item 6 of the scope of the patent application, wherein the N-component look-up table model can find the color value by interpolation using the closest points. 9 · Self-adjusting method using color profile as described in item 1 of the scope of patent application, wherein the step of establishing a color feature includes a color profile to convert a reference chromaticity value to the color of the device 1 0 The adjustment method using color profile as described in the first item of the patent application scope, wherein the conversion function of the step of establishing a color feature is to determine a grayscale tone reproduction curve, and the tone reproduction curve further includes the following steps : Find the “color value” of the gray scale color block of the reference profile, which is taken as the logarithm; the color value of the gray scale color block of the manipulated color image is used as the color value, < take the logarithm (that is, the optical density value); Individually compare RGB. Compare the three channels with RGBref, estimate the dynamic color, dynamic color, dynamic color, find the complex dynamic color of the color dynamic color, and use the color value form. Automatic color setting and adjustment. Linear 510123 VI. Correspondence of patent scope '"'_; and establishment of individual TRC for RGBg three channels ... 11 · Auto color using color profile as described in item 1 of patent scope A calibration method, wherein the step of establishing a color feature includes: generating a color value related to the device by using the color profile; using an inverse model of the color profile to convert the device independent reference chromaticity value to the Device-dependent color values. 1 2 · An automatic color adjustment method using a color profile as described in item 11 of the patent application scope, wherein the inverse model is a 3-Component Matrix based Model 〇 1 3 · The automatic color adjustment method using a color profile as described in item 12 of the scope of patent application, wherein the three-element matrix model is of order 3 * η. 1 4 · Use the color profile as described in item 11 of the scope of patent application An automatic color adjustment method, wherein the inverse model is an N-Component Look up Table based Model. 1 5 · An automatic color adjustment method using color characteristics as described in item 14 of the scope of patent application , Where the N element look-up table model is to find the color value by using the nearest point. 1 6. An automatic color adjustment method using color characteristics as described in item 14 of the scope of patent application ' The N-element look-up table model uses the closest plural points to find the color value by interpolation. 1 7 · —An automatic color adjustment method using color characteristic slots, including, the following steps: Initial setting: select one Color characteristics and determine the color difference tolerance Value; wheel, color draft: output a color draft image with color output device; prepare ¥ color difference · differentiate a color difference value between the color draft image and a reference color draft; determine the relationship between the color difference and a color difference allowable value: determine The color difference value is outside the allowable value of the color difference; establishing a color feature: determining a calibration conversion function; and 18, such as performing feedback control, a turn-in calibration conversion function to the device. • The method of automatic color & adjustment using color profile as described in item 7 of the patent application scope above, wherein the step of calculating the color difference includes obtaining the color value of the color draft image; converting the color value into chromaticity; Compare the color difference between the color image and the reference color. 19. The automatic color adjustment method using a color profile as described in item 18 of the scope of the patent application, wherein the step of converting a color value into a chromaticity includes the following steps: Use the color profile to generate a device-independent Chroma value; use a forward model of the color profile to convert the captured color value Change to a chromaticity value independent of the device. 20 · The automatic color adjustment method using color characteristics as described in item 19 of the scope of the patent application, wherein the forward model may be a 3-component matrix based model. 21 The automatic color adjustment method using color characteristic weights as described in item 20 of the scope of patent application, wherein the three-element matrix model is of order 3 * n. Page 16 510123 VI. Scope of patent application ---- 22 · The automatic color adjustment method using color profile as described in item 丨 9 of the scope of patent application, where the forward model can be an N-element look-up table model (N -Component Look Up Table based Model) 〇23. An automatic color adjustment method using a color characteristic slot as described in item 22 of the scope of patent application, wherein the N-element look-up table model uses nearest points to find color values. … 24. An automatic color adjustment method using a color profile as described in item 22 of the scope of the patent application, wherein the N-element look-up table model uses the closest plural points to find the color value by interpolation. 25. The automatic color adjustment method using a color profile as described in item 7 of the scope of the patent application, wherein the decision of the step of establishing a color characteristic is a tone conversion function for determining a grayscale tone reproduction curve, The determination of the grayscale tone reproduction curve further includes the following steps: finding the RGBref color value of the grayscale color block broadcast with reference characteristics, and taking the logarithm individually; the RGBQ color value of the grayscale color block of the captured color image, Individually compare the differences between the three RGBg channels and estimate their linear correspondence; and establish RGB. Individual TRCQ for three channels. 2 6 · An automatic color adjustment method using a color profile as described in item 7 of the patent application scope, wherein the step of establishing a color feature includes using the color profile to convert a reference chromaticity value to the device Color value form. Page 17 510123 Sixth, the scope of patent application 27. The automatic color adjustment method using a color profile as described in item 7 of the scope of patent application, wherein the step of establishing / color characteristics includes using the color profile to generate a device-related Color value; use the inverse model of the color profile to convert the device-independent reference chromaticity value to a color value associated with the device. 2 8 · An automatic color adjustment method using a color profile as described in item 27 of the patent application scope, wherein the reverse molding is a 3-Component Matrix based Model ° 2 9 · as in the patent application scope The automatic color adjustment method using a color profile according to item 28, wherein the three-element matrix model is of order 3 * n. 30. An automatic color adjustment method using a color profile as described in item 28 of the scope of the patent application, wherein the three-element matrix model is obtained by multivariate analysis and detailed analysis. 31. The automatic color adjustment method using a color profile as described in item 27 of the scope of the patent application, wherein the inverse model is an N-Component Look Up Table based Model. 32. The self-calibration method using a color profile as described in item 31 of the scope of the patent application, wherein the N-element look-up table model is to find the color value by using the nearest point. Auto color of color profile To take advantage of the closest complex 33. The color adjustment method is used as described in item 31 of the scope of the patent application, wherein the N component look-up table model uses interpolation to find the color value. 34 ·-One of the ways to use color profiles is: Dynamic color adjustment system, which includes Sixth, the scope of patent application ^ ~ ----host, used to process color analysis and calculation; a color input device connected to the host and used to input a color draft; storage media 'connected to the host; color A calibration management program is stored in the storage medium; a color profile is associated with the color input device and stored in the storage medium; = after the color manuscript is input by the color input device, the host uses the The color σ weekly school management program performs color analysis 2 of the input color draft image to obtain the relevant information of the color draft image, and then compares the similarities and differences between the related information and the color profile, and according to the color characteristics of the storage medium. Create a new color feature to adjust the color input device so that the color of the manuscript input by the far color input device is equal to its original color. 35. The automatic color adjustment system using a color profile as described in item 34 of the scope of the patent application, wherein the storage medium is a floppy disk. 36. The automatic color adjustment system using a color profile as described in item 34 of the scope of the patent application, wherein the storage medium is a hard disk. 37. The automatic color adjustment system using a color profile as described in item 34 of the scope of patent application, wherein the storage medium is an optical disc. 38. The automatic color adjustment system using a color profile as described in item 34 of the scope of the patent application, wherein the storage medium is a random access memory. 39. The automatic color adjustment system using color profiles as described in item 34 of the scope of patent application, wherein the color input device is a scanner. 510123 40. The self-color adjustment system using a color profile as described in item 34 of the scope of patent application, wherein the color input device is a digital camera. Color 41 · Automatically using color profile as described in item 34 of the scope of patent application. A color tone weighting system, in which the color analysis and calculation uses at least one & conversion to a model and a reverse model. 42. The automatic color tone adjustment system using color profiles as described in item 41 of the scope of patent application, wherein the forward model is a 3-Component Matrix based Model. 43. The automatic color adjustment system using a color profile as described in item 42 of the scope of the patent application, wherein the three-element matrix model is of order 3 * η. 44. An automatic color adjustment system using color profiles as described in item 41 of the scope of patent application, wherein the forward model is an N-Component Look up Table based Model 〇45. The automatic color adjustment system using a color profile as described in item 44 of the scope, wherein the N-component look-up table model can use the nearest point to find the color value. 4 6 · An automatic color adjustment system using a color profile as described in item 44 of the scope of patent application, wherein the N-component look-up table model can find the color value by interpolation using the closest plural points. 4 7 · An automatic color adjustment system using a color profile as described in item 41 of the scope of patent application, wherein the inverse model is a 3-Component Matrix based Model 〇 4 8 The automatic color adjustment system using a color profile according to item 7, wherein the three-element matrix model is of order 3 * η. Page 20 510123 6. Scope of patent application 4 9 · The automatic color calibration system using color characteristics as described in item 47 of the scope of patent application, in which the three-element matrix model is obtained by multivariate regression analysis. 5 〇 The automatic color adjustment system using color characteristic slots as described in item 41 of the scope of patent application, wherein the inverse model is an N-Component Look Up Table based Model. 5 1 · The automatic color tone adjustment system using color characteristics as described in Item 50 of the patent application scope of the patent, wherein the N-element look-up table model uses the nearest point to find the color value. 5 2 · The automatic color adjustment system using color characteristics as described in item 50 of the scope of patent application, wherein the N-element look-up table model uses the closest plural points to find the color value by interpolation. 53 · —An automatic color adjustment system using color profiles, including: ', a host for processing color analysis and calculation; a color output device connected to the host and used to output a color draft; A storage medium connected to the host; a color adjustment management program stored in the storage medium; a color characteristic broadcast associated with the color output device to store the storage medium; The color manometer is used to measure the color manuscript and is related to the color output device to output the color manuscript. Page 21 M0123 Measuring the color draft to obtain relevant information, and the host compares the similarity and difference between the relevant information and the color profile by using the color calibration and management program, and converts the color profile in the storage medium to make the color output device The color of the output color can be equal to the original color. 54. The automatic color adjustment system using a color profile as described in item 53 of the scope of the patent application, wherein the storage medium is a floppy disk. 55. The automatic color adjustment system using a color profile as described in item 53 of the scope of the patent application, wherein the storage medium is a hard disk. 56. The automatic color adjustment system using color profiles as described in Item 53 of the scope of patent application, wherein the storage medium is an optical disc. 57. The automatic color adjustment system using color profiles as described in item 53 of the scope of patent application, wherein the storage medium is a random access memory. 58. The automatic color adjustment system using a color profile as described in item 53 of the scope of patent application, wherein the color output device is a printer. 5 9 · An automatic color adjustment system using a color profile as described in item 53 of the scope of patent application, wherein the color output device is a computer screen. 60. The automatic color adjustment system using a color profile as described in Item 53 of the scope of the patent application, wherein the color analysis and calculation are performed using at least one forward model and a reverse model conversion. 61. The automatic color adjustment system using a color profile as described in item 60 of the scope of the patent application, wherein the forward mode is a 3-Component Matrix based Model. 62. The automatic color adjustment system using a color profile as described in item 61 of the scope of patent application, wherein the three-element matrix model is of order 3 * η. Page 22 510123 VI. Scope of patent application 6 3 · Automatic color adjustment system using color profile as described in item 60 of patent application scope, wherein the forward molding is an N-component look-up table (N-Component Look Up Table based Model). 64. The automatic color adjustment system using a color profile as described in item 63 of the scope of the patent application, wherein the N-element look-up table model can use the nearest point to find the color value. 6 5 · The automatic color adjustment system using color profiles as described in item 63 of the scope of the patent application, wherein the N-element look-up table model can find the color value by interpolation using the closest multiple points. 6 6 · Automatic color adjustment system using color profile as described in item 60 of the scope of patent application, wherein the reverse molding is a 3-Component Matrix based Model 〇 6 7 · as the scope of patent application The automatic color adjustment system using a color characteristic slot as described in item 66, wherein the three-element matrix model is of order 3 * n. 6 8 · The automatic color adjustment system using color profiles as described in item 6 of the scope of patent application, wherein the three-element matrix model is obtained by detailed analysis using multiple variable terms. 6 9 · An automatic color adjustment system using color characteristic grooves as described in item 60 of Shenyan's patent scope, wherein the reverse molding is an N-Component Look Up Table based Model. 7 〇 The automatic color adjustment system using color profiles as described in item 6 and 9 of the scope of patent application, wherein the N-element look-up table model can use the nearest point to find the color value. 71Auto color using color profile as described in item 6 and 9 of the scope of patent application 510123 Page 24