TWI306594B - Color adjustment system - Google Patents

Description

C/g !3〇65?744_ IX. Description of the Invention: [Technical Field] The present invention relates to a color correction system, and more particularly to a color correction system for correcting a color output/input device. ', [Prior Art] As the application of computer technology is more and more developed, users are increasingly strict with various color input and output devices, such as general media workers and interior designers. They all want their own cameras. You can shoot the real Yan Bei color, and there will be no distortion of the color shirt when displayed on the screen. When printing with a list machine, the colors are not color-shifted. General color proofing methods, such as the proofreading method of the display, = measuring instruments, such as the new company (so·jin produces the latest display "TheArtisanColorReferenceSystefJ, 具 the function of the kind" and with the machine attached - a measuring instrument Hey, this machine can only correct itself, but it can't correct other ^". In addition, the company whose price is not small is unable to purchase expensive measuring instruments = :=:1 laboratory to maintain The color wheel is in and out of the device. Moreover, the altir ^ ^ ^ (Lookup ble) specializes in the positive parameters, so the device cannot be corrected. The body correction parameters cannot be modified. The device and the other color school cake t^ (Dig丨ta丨stm Camera, ^方^, for example, DSC under the digital camera) or digital camera 5 B〇65?4_g In another embodiment, the color output device is a color printer, and the method of outputting the corrected image The above-mentioned and other objects, features and advantages of the present invention will be described in the accompanying drawings. [Embodiment of the present invention proposes a new architecture color correction, so that the user can easily correct the color output device.

Color wheel outfit fP First, for the color output device part, using the correction function originally provided by the other color wheeling device itself, instead of the expensive measuring instrument, first let the color output device display the color block designed by the invention, and The color display device is then used to measure the image displayed by the color output device, and a color measurement file is generated and the color output device is collated accordingly. In another embodiment, the generated color measurement file may be transmitted back to the color output device and the color output device may be self-corrected according to the color measurement file. For example, referring to Fig. 1, firstly, a corrected image file designed by the present invention is displayed by using a liquid crystal display (Liquid Crysta® Display, hereinafter referred to as "LCD"). Then, the color input device 120, for example, a digital still camera (Dsc) or a digital video camera (DVC) is used to capture an image of the corrected image file displayed on the screen. Then, the color input device 8 13065 strokes the kiss 120 to generate a specially defined color correction f according to the acquired image. The color correction file 130 is as shown in FIG. 2, and will be detailed below; According to the generated color correction file, the liquid crystal display (10) is used to modify the matrix of the liquid crystal display 14 or the look-up table. The method of returning the color correction file 130 to the liquid crystal display 14 can be transmitted by wired network or wireless network. The wired network transmission can utilize the transmission protocol between the screen 11 and any of the transmission ports that the color wheeling device 12 can communicate with each other. Another type of transmission can also transmit this color correction file 13 利用 using the currently popular memory card reading method. The correction file format 13〇 generated above may be a 丨CC (丨nternationai c〇|〇r Consortium, “lcc,,) characteristic block in the selected embodiment, as shown in Fig. 2. This coffee profile 疋A device color description • file developed by the International Color Association (丨nternat丨丨〇〇丨〇 “Conortium '“丨CC”). The file records the characteristics of the device in terms of color representation and some related information. The purpose is to provide a unified 柊2 = to solve the problem of color performance in different devices and operating systems. At present, 丨CC profile has become a standard for cross-media color image performance, developed by major software and hardware manufacturers. The products support and apply this standard 'in terms of software such as Microsoft Windows, Adobe Photoshop, Corel Draw, etc. In terms of hardware, manufacturers will provide their products with the sale of products. 〇fj|e to eliminate 9 13 〇65 is used by one fee. As shown in Figure 2, the file format of 丨CC profile 200 includes three parts: Profile Header 210, Tag Table 2 20 and tagged data (Tagged e 丨ement Data) 230. Description of the trough (pr〇fj|e Header) 210 contains some necessary information, such as the description size (Profile Size), adjustment type (calibration) Type), description version • Profile Version Number, Date and Time, Device Manufacturer and Device Model, etc. Of course, this description header 21 Other information may be included 'Generally, this section may use, for example, 128 Bytes. The purpose of the Tag Table 220 is to provide a lookup between the tag and the tag element data (Tag Element Data). The function 'each tag can occupy, for example, 12 Bytes, where for example, the 0th to the 3rd byte records the tag tag (Tag_Signature), which is the "Sig" in the figure. The 4th to the 7th byte record the corresponding label data start position, which is the "Offset" mark in the figure, and the 8th to 11th byte records the size of the label data element. Also the icon The “Size” and the tagged data (Tagged E丨ement Data) 230 are divided into Input Profile, Display Profile and Output Description according to different device types (Output 10 130653⁄4. f.doc/ g Ρ _β), each label data records the data of m and some related information, see the characteristics above, according to these characteristic values, the application of life = to represent the true color of the image for different devices. & Example of using the digital camera itself's correction work = shooting and coloring the liquid crystal display to display a specially defined image, and according to the production of color correction file, and then = school day, no measurement, or measurement The file allows the LCD display to be self-explanatory. As shown in Figure 3, the digital camera displays the shadows θ c , CG and cB of the calibration file preset in this embodiment from the liquid crystal, and the matrix of the built-in functions of the digital camera after shooting. 310, after the calibration, obtain the corresponding color measurement including the red, the value 'f_'G, B) and the like, and the itching is, for example, the X, γ, and ζ values in the XYZ color space, and the obtained πΓ, 312 and the input person The image value of the correction file of the embodiment (eR, eG, and eB as shown in the figure) 314 is logically operated by 32: color reading the positive groove, and the color correction (four) value is used for the liquid crystal, and the external proofreading is performed. This logical operation includes any shape and difference. In another embodiment, the color correction file can also be transported to the inside of the liquid crystal display 33, and the parameter value of the display is automatically corrected by the proofreading, and the form of the modified parameter value can include a matrix of 7 (Matrix). Or a three-dimensional space checklist (3D匕-叩able) and so on. The liquid crystal display can be corrected by the proofreading. Then, according to the color measurement slot 44 (4), the proofreading is performed externally. Or it can also be used to correct the parameter value of the displayed parameter value and correct the parameter value or the three-dimensional space checklist (3D L=k: ::.) Proofreading corrects it)

Value. The color measurement value of the multi-shirt color input device 420 taken from the liquid crystal display 41Q is not limited to the above-mentioned χγζ color space, and may be measured values such as Lab color space, Yuv color space, information color space and NTSC RGB color space. According to the needs of this visual design, any form of color space can be applied to the architecture proposed by the present invention without departing from the scope of the invention. The format of the color measurement file 44 in Fig. 4, in the embodiment = can be as shown in Fig. 5 of the color measurement file format. The color spec file format 500 includes a description header (pr〇f丨丨e Heade ") 510 and an element data 520. The description header 510 contains some necessary information 'such as the description shown in the illustration. Profi丨e Size, Calibration Type, Profi丨e Version Number, Date and Time, Device Manufacturer and Device Model Etc. Of course, this description section 510 section may include other information. Component data (Element 13 13063⁄43⁄4 76twf.doc/g

Data) 520 according to different device types, the information required for the color space conversion of the recording device and some related information, which represent the characteristics of the device in terms of color performance. According to these characteristic values, the application can be different. The device is used to represent the true color of the image. The above-mentioned calibration method is as shown in the embodiment of FIG. 6. The digital camera is used to display the image of the pre-set file of the pre-set file of the embodiment (shown as cR, cG, and cB) from the liquid crystal display, and is photographed and then passed through the digital camera. The matrix of the built-in image correction function is 61〇, which is obtained after calibration, and includes the measured values corresponding to the three primary colors of red, green and blue (R, G, B)#. And through the measuring instrument i 630 also obtained the measurement =. According to the measured value obtained by the digital camera and the measured value obtained by the measuring instrument 630, it is combined with, for example, S XYZ color = "X, γ, ζ value 620' and then converted to a color amount measuring file ^ ((4) ... coffee) 6. The color measurement standard obtained by this method _ spotm m embodiment of the correction file image set value (as shown in Figure 2 'via logic operation, any form of operation can be based on this value. In another; The internal parameter file 6 6 0, which is automatically displayed according to the parameter value displayed by ^曰曰, and the corrected number ^ ^ ', array / value form may include display brightness (Matnx) or second space

Table) and so on. And this liquid a g - table (3D Look-up shows the parameter value. The device can be corrected according to the proofreading

I3065^6twfdoc/g The color measurement value of the camera from the LCD monitor and = limit: the above XYZ color space, can also be Lab color space

H UV color space, sRGB color space and NTSc rgB color, space isometric value, depending on the needs of this visual design, any shape of the color shirt space can be applied to the architecture proposed by the present invention without departing from the scope turn. With the correction architecture of the present invention, it is also possible to use a color input device such as a digital camera (DSC) or a digital video camera (DVc) to correct a photo printing device such as a printer or a photo printer. For example, FIG. 7 shows that the image of the calibration file preset by the embodiment is printed by the color input device 720, for example, the digital camera, the image capturing device 710, and the image correction function built in the color wheeling device 720 after the shooting. After the calibration, the color measurement values corresponding to the two primary colors such as red, green, and blue (r, G, B) are obtained, for example, the X, γ, and Ζ values in the χγ color shirt space. Then, the color input device 72 can generate a specially defined color correction file (Refe "ence FHe" 730' according to the acquired image. The color correction file 73 can be, for example, as shown in FIG. 2. The color correction file is generated according to the generated color. And returning to the image printing device 740' to print the parameters directly according to the image printing device threshold. The color measurement value generated by the color input device 720 is not limited to the above-mentioned XYZ color space, and may also be Lab Color space, YUV color space, SRGB color space and NTSC RGB color space and other measurements 'depending on the needs of this visual design, any form of 15 c / g I30mwfd. The structure of the color space can be applied to this The invention is proposed to be away from its standard _.

For the color input device part, the color function of the color output is displayed, and the t color block designed by the invention is used to replace the calibration color card which is generally sold on the market, and each color output device itself is also randomly matched with the color measurement. Reference (Reference). The color wheel device is used to capture the color block displayed by the color output device, and the color value of the random matching device can be used to correct the value of the color input device, such as an internal matrix or a checklist (L〇〇k_up Tab) |e). The actual implementation is as shown in Fig. 8. First, a screen image (displayed as a color patch) is provided by using a screen 81 〇, such as a liquid crystal display (LCD) as shown. Then, using the color input device 830, for example, a digital camera (Digjta丨st丨丨丨Camera' under the abbreviated DSC) or a digital camera (D(9)(9)^de〇Camera, hereinafter referred to as DVC), the correction of the screen 81〇 is taken. , IV image of the slotted shirt, and the result is transmitted to the color input device 8 3 〇 internal matrix or check list (L〇〇k-up Table), such as three-dimensional space checklist. The color output device 81 itself is also randomly matched with a color measurement file (Reference) 820, which is also transmitted to the parameter file 840' inside the color input device 830, such as a matrix or a look-up table. . The color setting value of the color input device 830 can be corrected by comparing the result of the shooting with the color amount measuring device 82 of the color output device 810. 16 The above-mentioned calibration method is as shown in FIG. 9. Referring to FIG. 8, the color input device 910 is obtained from the image (color block) of the calibration file preset in this embodiment displayed by the color output device. The color measurement file (Reference Fl_丨e) 915 of the cR, cG, and cBe color output devices is also converted into the color measurement values corresponding to the red, green, and blue (RG, B) 原 two primary colors, for example, The X, 丫, and 2 values of the XYZ color space are 93 〇. After the logical operation 94 〇 φ, the color input device 910 can be externally proofed based on this value, and the logical operation includes any form of operation. In another embodiment, it may also be transmitted to the inside of the color input device 910, and the parameter value of the display may be automatically corrected by the proofreading, and the form of the modified parameter value may include a display matrix (Matrix) or a three-dimensional space check. Table (3D Look-up Table) and so on. The liquid crystal display can be corrected to correct the displayed parameter values. The above-mentioned color measuring slot (Refe "erjCe FMe) 9i 5, in addition to the X, 丫, z values that can be converted into XYZ color space, can also be converted into Lab color space, YUV color space, srgb color space and NTSC RGB The color space isometric, depending on the visual design, any form of color space can be applied to the architecture proposed by the present invention without departing from its scope. - In addition, in addition to using color output devices, In another embodiment of the present invention, the image printing device can also be used, and the color block designed by the present invention is printed by the image printing device to replace the commercially available color correction card. Print the color block and refer to the 17 itwf.doc/g image printing device's own matching color measurement file (Reference nie) to correct the parameter values of the color input device, such as the internal matrix or check Table (L〇〇k - up Table) The actual implementation, as shown in Fig. 1A, first uses a color image printer 1010 to print a color with many different color patches according to the corrected image file designed by the present invention. Board 1020 Then, using the color input device 1040, for example, a digital camera (Digjta| Still Camera, DSC for short) or a digital camera (Djgita| Video Camera, referred to as Dvc for short), the printed swatch 1020 is taken, and The result is transmitted to the matrix of the color input device 1〇4〇 or the look-up table 1050. The color image printer 1010 itself is also randomly matched with the color measurement file (Reference) 1030, which is also transmitted to the same. The color input device 1〇4〇 internal matrix or check table (Look_up Table) i〇5〇. According to the result of the shooting and the color image printer 1〇1〇 color measurement file (Reference) 1 030 after the comparison The color setting can be corrected to correct the color setting of the coloring device 1040. Although the invention has been disclosed in the preferred embodiments as above, and is not intended to limit the invention to any skilled artisan, without departing from the invention. In the spirit and scope of the invention, the scope of protection of the invention is subject to the scope of the appended claims. [FIG. 1 is a diagram illustrating the implementation of the present invention. For example, the color correction device is used to calculate the color output device in Figure 2. The color correction file format in the image of the invention is shown in Fig. 3 Description of the color in the figure: Figure 4 illustrates the use of a method of the present invention. The input device puts the color output on

The present invention is based on the color correction method used in the 圏4. FIG. 7 illustrates the correction of the color output device using the m=printing device of the present invention. FIG. A color correction method for correcting a color input device using the device of the embodiment of the present invention; FIG. 9 is a view for explaining a color correction method in FIG. 8 and FIG. 10 is a view showing an embodiment of the present invention. The color corrected by the machine for the color input device: two colors: [Description of main component symbols] Only positive method. 110: Screen 120: Color input device 130: Color correction file 140: Liquid crystal display 200: ICC profile 210: Description block Head (Profile Heacjer) 130653⁄43⁄4 6twf.doc/g 220 : Tag Table 230 : Tagged Element Data Sig : Tag Signature

Offset : label data start position

Size : size of the tag data element 310 · · matrix 320 : logic operation 330 : liquid crystal display internal parameter file 410 : screen 420 : color input device 430 : measuring instrument 440 : color measurement file 450 : liquid crystal display 500 : color measurement File format 510: Description of the head (Profi丨e Header) 520: Element Data 610: Matrix 620 ·· X, 丫, Z Value 630: Measuring instrument 640: Color measurement file 650: Logic operation 660: LCD internal parameter file 710: image printing device 720: color input device I3065?i6twfdoc/g 730: color correction file (Reference File) 740: image printing device 810: screen 820: color measurement (Reference) 830 Color input device 840: color input device internal parameter file 910: color input device 915: color reference file (Reference File) 930: X, Y, Z value 940: logic operation 950: color input device internal parameter file 1010: color Image printer 1020: swatch 1 030: color measurement slot (Reference) 1040: color input device 1050: matrix or look-up table (Look-up Table) 21

Claims (1)

1306594 X. Patent Application Range: A color correction system suitable for a color output device, comprising: providing a corrected image file to the color output device for outputting a corrected image; Using a color input cluster, after capturing the corrected image, a color correction file is rotated, and the color output device is calibrated according to the color correction file, wherein the color output device corrects one of the internals according to the color measurement file. The value of the matrix or the value of a checklist is displayed to correct the set value of the color, thereby correcting the color output device. 2. The color correction system of claim 2, wherein the color input device is used to capture the value of the corrected image and then converted to a color space value according to the image correction function built into the color input device. 3. The color correction system of claim 2, wherein the color space value can be defined in a χγζ color space. The color space value in the color correction system described in item 2 of the patent scope can be defined in the Lab color space. 5. The color purity system described in item 2 of the middle material category, the color space value of the eight It can be defined in the γυν color space. 6. The color space value can be defined in the sR (3B color space.), as described in the application for full-time f 2 items. - + The color space value can be defined in the NTSC RGB color space. ' 22 1306594 97-07-15 The color correction system described in the patent 2, 帛 帛 ,, the color of the color input device transmits the color The correction slot is transmitted to the color wheel by means of a wired network. The color correction system of the color correction system described in item (1) is transmitted by the color input device of the case. In order to suppress the wireless _ mode, the pure output is equipped with: the color correction system described by ^, the color correction channel, the color correction system, the color data correction system, the label data, the description header, the label table and a positive The basic data color of the image result is input to the school. The second and second label data are based on ;::= the result of the work image...=: the color description = correction system, the image system is not in the display of the crying cover. The correction shadow 13 is as shown in the patent application scope: Wherein the color wheeling: color=color correction system, ... 'system' applies to-color wheel out, 23 1306594 97-07-15 includes: providing a corrected image file to the color wheeling device to take one Correcting the image; using a color input device to capture the corrected image, generating a first measured value; using a measuring instrument to measure the corrected image to generate a second measured value; and day according to the first measuring The value and the second measured value are used to generate a color measurement broadcast, and the color output device is calibrated according to the color measurement slot. V 15· As described in claim 14 of the patent application, wherein the format of the color measurement file includes _ tracing == two? Description, the color input device handles color r: wear, and two basic shells' and the component data includes the shirt color input device to obtain the corrected image - once the measuring instrument measures the corrected image After the generation: the data of the first J measurement.吻乐一里16_such as the application of the scope of the patent scope of the 14th item, where the color output device is - display crying two 糸 positive image is displayed on the screen of the display: 11 of the school 1 7_ as applied The scope of patents is unified, in which the color correction system described by _ color is less than the 栌 栌 你 你 你 你 你 — — 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色 彩色18·—Color correction system for 1-color wheel-in devices, 24 1306594 97-07-15 Included: providing a positive image file to a color wheel-out device to rotate a corresponding one of the corrected images, wherein the color The output device has a measurement file; and the color input device is used to capture the corrected image, and receive the color measurement broadcast transmitted by the color output device, and according to the captured result and the color measurement Correct the ^ wheeling device after the file is aligned. 19. The color correction system of claim 18, wherein the color input device is corrected by modifying the parameter file of the color entry device. 20. The color correction system of claim 19, wherein the parameter file is a matrix, and the value of the matrix is corrected after the result of the comparison is compared with the color measurement file. ^ 〃 21· The color correction system described in claim 19, wherein the parameter file is a checklist (L〇〇k_up ding (6), and • based on the result of the capture and the color measurement The value of the look-up table is corrected after the file is matched. The color correction system of claim 18, wherein the color input device first colors the color wheel device The measured file is converted into a color space value to be compared with the color input = the corrected image is corrected and the color input device is corrected. ^ 25 1306594 97-07-15 23. The color as described in claim 22 Correction system, wherein the color space value can be defined in the χγζ color space. 24. The color correction system according to claim 22, wherein the color space value can be defined in the Lab color space.” 25_If the patent application scope The color correction system of item 22, wherein the color space value can be defined in a γυν color space. 26· Color correction as described in claim 22 The color space value can be defined in the sRGB color space. The color correction system of claim 22, wherein the color space value can be defined in the NTSC Rgb color space 0 28_ as described in claim 18 of the patent scope, wherein the color output is The device transmits the color measurement standard to the color input device by means of a wired network. Work 29. Color correction as described in claim 18 The color output device transmits the color amount to the color input device by means of a wireless network. 3. The color calibration method as described in the application for patent scope L18: The color output device transmits the color measurement file in a manner that is transmitted by means of a memory card. 3, for example, the color correction described in item 18 of the patent application scope, and the color measurement file includes: description of the head, - label label data, which describes the color of the color, and the basic result of the image. Data, and the label table provides a look-up table: 26 '1306594 97-07-15 function, and the label data can be used according to the label table to obtain the color data obtained by the color input device for capturing the corrected image. 32. As claimed in claim 18, the color output device is a display hand: the positive image is displayed on (4) of the display. Riding the continuation of the scope of the application for patents* * The luxury of the color described in item 18; h The square of the corrected image is set to the - shirt color printer' and the wheel is the series to print the corrected image. Printed 27