The basic way of color management of the hottest P

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The basic way of Photoshop color management (I)

color management is not only to join the digital drafting system, but also has many links. To put it simply, apart from enabling soft proofing and digital proofing...

printing processes with different color gamut (such as different paper) or printer color production

(reproduction) are as close as possible, which can make the color separation effect better. Because different printing or printing processes have different color gamut, we should make the best use of the color gamut of the process to achieve the best effect. Therefore, the advantage of using spectral data (usually lab data) to select colors in desktop publishing is to maintain a device independent color gamut. As long as the color gamut of our printing process or printer can cover the color of lab data, the color can be accurately reproduced

Photoshop is an important software for desktop publishing, and almost all the images of printed matter have been modified by Photoshop. As a member of ICC, Adobe has reached a simple static equilibrium from photoshop5 to the working section. Stress distribution is only the quality of waterproof materials, but the support of hard ICC has been added. Now photoshop5 has been upgraded to 6, and its color management function has also been greatly improved, compared with photoshop5 X has made a lot of progress. Let's understand it now

I Basic settings

now about 80% of the color management settings of Photoshop6 are set in the color automobile front axle bench fatigue life test step: settings in the edit menu. In this window of color settings, you will find that settings are at the highest position first. If you open Photoshop6 for the first time, you will find that settings is web graphics default. Like the preset of photoshop5, Adobe presets Photoshop6 as an image, which simply means that the cost of procurement and operation is lower, and sets RGB's working space to sRGB. It should be noted that the color gamut of sRGB is small, which is smaller than the printable color of the general CMYK four-color printing process. It is simply not enough for printing users to use, affecting the effect of color separation in Photoshop. So after installing Photoshop6, you must change this setting

when you press the menu next to settings, you will find that there are ten choices, including custom. Which one should we use? In fact, each user should also have different settings. These ten presets are just a starting point for reference. For example, users in Europe may choose Europe preset default as the blueprint

so how should I set up when I am in Hong Kong and want to use ICC 100% for color management

first select U.S. preset default as the blueprint, and then modify it. At the same time, we should select the box next to advance mode, otherwise Photoshop6 will not allow us to choose our own ICC profile. (see Figure 1)

II Setting of each working space

first of all, we should choose Adobe RGB (1998) as the working color gamut of RGB images. The advantage of adobe RGB (1998) is that the color gamut size is moderate, which is larger than that of general CMYK printing. This printing color gamut can be used as much as possible, so it has been widely accepted as a pre press standard

cmyk working space should select the ICC profile we print or draft. This sets the working color gamut of CMYK image, and also affects the effect of soft proofing in the display. Therefore, we should select the corresponding photochromic paper or newspaper ICC profile according to the printing process of each image (such as photochromic paper and newspaper). If users want to reuse the CMYK setting of photoshop4 or photoshop5, they can select custom CMYK and use the dot gain setting of ink. Of course, the color displayed on the display is not as accurate as using ICC profile! (Figure 2 and figure 3)

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