CN101751578A - Data control method of converting red green and blue (RGB) image into yellow, magenta, cyan and black (YMCK) mode - Google Patents

Abstract

The invention discloses a data control method for converting a red green and blue (RGB) image into a yellow, magenta, cyan and black (YMCK) mode, which comprises the steps of: presetting a parameter for converting the RGB image into the YMCK mode, and easily selecting image-mode-Y, M, C and K for the conversion of Photoshop after the parameter is set well without the operation of a high-quality technician with Y, M, C and K color separation experience. As long as the RGB image effect is confirmed, the four-color image with the YMCK mode can be satisfied by customers. Meanwhile, the invention solves the problem of the conversion quality of the RGB image into the YMCK mode, enables the digital working process of the printing industry to be smoother, and drives the digital photographic equipment and the digital employees to better enter the printing industry.

Description

The RGB image changes the data control method of YMCK pattern

Technical field

The present invention relates to a kind of RGB image changes the data control method of YMCK pattern.

Background technology

Reaching its maturity of digital technology, increasing image is from high-precision digital equipment, the image model that corresponding digital equipment produces all is the rgb color pattern, the requirement that this printing industry for the color mode of required Y, M, C, K just needs the color mode convert color data to be connected.

RGB printing image print product because the Data Control of RGB conversion Y, M, C, K is not in place, causes the quality of image to decline to a great extent after the conversion, as the color photographic fog, and situation such as contrast is not enough.

As a result there is the offshore company of specialty to release expensive RGB commentaries on classics Y, M, C, K mode software, but because the fixing tupe of computer can deal with some specific RGB image color improperly, the color artistic conception performance that causes image Y, M, C, K does not conform to during with the RGB state.

At present, the overwhelming majority is handled RGB and Y, M, C, K pattern color conversion, all adopt the Photoshop software of ADOBE company to change, but when conversion, the controlled variable of tolerance grade of fit the best that neither one is specific is in this Photoshop software, have plenty of the transformation curve under some particular cases, main relevant with certain regional printing standard, or the data-switching relevant with the printing equipment material set.

Summary of the invention

Technical matters to be solved by this invention be propose a kind of can guarantee that the RGB image changes Y, M, C, K pattern the time the inferior whole structure of color layer reach the data control method of optimum degree.The inventive method can effectively overcome because the Data Control of RGB conversion Y, M, C, K is not in place, causes the quality of image to decline to a great extent after the conversion, as the color photographic fog, and situation such as contrast is not enough.

In order to solve the problems of the technologies described above, the data control method that RGB image provided by the invention changes the YMCK pattern comprises the steps:

(1) opens Photoshop software;

(2) click " editor " tool bar; Open " color setting " dialog box; Selecting " setting " is " making by oneself ", and wherein, in " work space ": " RGB " selects to be set to Adobe RGB (1998), and " grey " selected to be set to 15%, and " specially look " selected to be set to 15%, and " CMYK " selects to be set to " making CMYK by oneself "; In " color management scheme ": " RGB ", " CMYK " and " grey " are all selected " keeping the configuration file that embeds "; Open " making CMYK by oneself " dialog box, title selected " SWOP (Coated), 20%, GCR, in ", in " color separation option ": black ink is restricted to 85%, and total ink is restricted to 350%, UCA quantity is 0; Click " good ", finish " making CMYK by oneself " and " color setting ";

(3) open the RGB image with Photoshop software;

(4) click " image " tool bar, select " adjustment ", open " curve " dialog box: " passage " selected to be set to " CMYK ", and " input " is set to 50%, and " output " is set to 55%; Click " good ", finish " curve ";

(5) click " image " tool bar, select " adjustment ", open " form and aspect/saturation degree " dialog box: " editor " selects to be set to " full figure ", and " form and aspect " are set to 0, and " saturation degree " is set to 5, and " lightness " is set to 0; Click " good ", finish " form and aspect/saturation degree ";

(6) storage is finished the conversion of Y, M, C, K pattern four-color image through above-mentioned editor's RGB image.

The inferior whole structure of color layer reached optimum degree when the inventive method can be guaranteed the commentaries on classics of RGB image Y, M, C, K pattern, used thereby make the RGB image can be printed industry well.The computer parameter setting of this control method gets through the demonstration of experimental demonstration and production practice repeatedly.

Description of drawings

Fig. 1-the 6th, the process flow diagram of data control method of the present invention.

Embodiment

Below in conjunction with the drawings and specific embodiments, further set forth the present invention.These embodiment are interpreted as only being used to the present invention is described and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.

Shown in Fig. 1-6, a kind of RGB image that a preferred embodiment of the present invention provides changes the data control method of YMCK pattern, operates according to following steps:

At first, open the Photoshop software of Adobe company;

As shown in Figure 1, click " editor " tool bar; Open " color setting " dialog box;

As shown in Figure 2, selecting " setting " is " making by oneself ", wherein, in " work space ": " RGB " selects to be set to Adobe RGB (1998), " grey " selected to be set to 15%, and " specially look " selected to be set to 15%, and " CMYK " selects to be set to " making CMYK by oneself "; In " color management scheme ": " RGB ", " CMYK " and " grey " are all selected " keeping the configuration file that embeds ";

As shown in Figure 3, open " making CMYK by oneself " dialog box, title selected " SWOP (Coated), 20%, GCR, in ";

As shown in Figure 4, in " color separation option ": black ink is restricted to 85%, and total ink is restricted to 350%, and UCA quantity is 0; Click " good ", finish " making CMYK by oneself " and " color setting ";

As shown in Figure 5, open the RGB image with Photoshop software, click " image " tool bar, select " adjustment ", open " curve " dialog box: " passage " selected to be set to " CMYK ", and " input " is set to 50%, and " output " is set to 55%; Click " good ", finish " curve ";

As shown in Figure 6, click " image " tool bar, select " adjustment ", open " form and aspect/saturation degree " dialog box: " editor " selects to be set to " full figure ", and " form and aspect " are set to 0, and " saturation degree " is set to 5, and " lightness " is set to 0; Click " good ", finish " form and aspect/saturation degree ";

Storage is finished the conversion of Y, M, C, K pattern four-color image through above-mentioned editor's RGB image.

According to the above embodiment of the present invention, parameter setting well after,----pattern----Y, M, C, K get final product to select image in the conversion of Photoshop with regard to easy need, the technician who need not high-quality Y, M, C, K color separation experience operates, as long as the RGB image effect is confirmed, just can obtain Y, M, the C of customer satisfaction, the four-color image of K pattern, RGB conversion Y, M, C, K quality problems have been solved simultaneously, make printing industry digitizing workflow more smooth and easy, also can drive digital video taking apparatus and digital practitioner enters printing industry better.

Claims (1)

1. a RGB image changes the data control method of YMCK pattern, it is characterized in that this control method comprises the steps:

(1) opens Photoshop software;

(2) click " editor " tool bar; Open " color setting " dialog box; Selecting " setting " is " making by oneself ", and wherein, in " work space ": " RGB " selects to be set to Adobe RGB (1998), and " grey " selected to be set to 15%, and " specially look " selected to be set to 15%, and " CMYK " selects to be set to " making CMYK by oneself "; In " color management scheme ": " RGB ", " CMYK " and " grey " are all selected " keeping the configuration file that embeds "; Open " making CMYK by oneself " dialog box, title selected " SWOP (Coated), 20%, GCR, in ", in " color separation option ": black ink is restricted to 85%, and total ink is restricted to 350%, UCA quantity is 0; Click " good ", finish " making CMYK by oneself " and " color setting ";

(3) open the RGB image with Photoshop software;

(4) click " image " tool bar, select " adjustment ", open " curve " dialog box: " passage " selected to be set to " CMYK ", and " input " is set to 50%, and " output " is set to 55%; Click " good ", finish " curve ";

(5) click " image " tool bar, select " adjustment ", open " form and aspect/saturation degree " dialog box: " editor " selects to be set to " full figure ", and " form and aspect " are set to 0, and " saturation degree " is set to 5, and " lightness " is set to 0; Click " good ", finish " form and aspect/saturation degree ";

(6) storage is finished the conversion of Y, M, C, K pattern four-color image through above-mentioned editor's RGB image.

Images