The Basic Way of Color Management in Photoshop (1)

Color management is not just about joining a digital copying system. There are many links to it. In simple terms, color management not only enables Soft Proofing and Digital Proofing...

Print processes with different color gamuts (such as different paper) or color production in printers
(Reproduction) as close as possible, can make the separation better. Since the color gamut of different printing or printing processes is also different, we should use the color gamut of this process as much as possible to achieve the best results. So the advantage of using Spectral Data (usually in LAB data) to select colors at desktop publishing is to maintain a Device Independent gamut. As long as our printing process or printer's color gamut can cover the color of this Lab Data, we can accurately reproduce the color.

Photoshop is an important piece of software that is published on the table. Almost all prints have been modified by photoshop software. Adobe is a member of ICC and has joined ICC support from Photoshop5. Now Photoshop5 has been upgraded to 6, and the color management function has also been greatly improved. Compared with Photoshop5.X, it is a lot of progress. Now let us together To understanding.

One basic setting

Now that about 80% of the color management settings in Photoshop 6 are set in the Color Settings in the Edit menu. In this Color Settings window, you will find that there are first settings in the highest position. If you open Photoshop 6 for the first time, you will find that Settings is Web Graphics Default. Like Photoshop5's default, Adobe defaults Photoshop 6 as an online image, which is simply to set the RGB Working Space to sRGB. Pay attention to the small color gamut of sRGB, which is smaller than the printable color of the common CMYK four-color printing process. It is not enough for printing users to use, affecting the effect of color separation in Photoshop. So after installing Photoshop 6, be sure to change this setting.

When you press Menu next to Settings, you notice that there are ten choices, including Custom. Which one should we use? In fact, each user should have different settings. These ten presets are just a starting point for reference. For example, users in Europe may choose to use Europe Prepress Default as a blueprint.

Then I want to use 100% ICC for color management in Hong Kong. How should I set it up?

First, you should select US Prepress Default as a blueprint and make changes. At the same time, you should select the square next to Advance Mode, otherwise Photoshop6 will not allow us to choose our own ICC profile. (see picture 1)

II. Setting of each Working Space

First of all, we should choose Adobe RGB (1998) as the working color gamut of RGB image. The advantage of Adobe RGB (1998) is that the color gamut is moderate in size, larger than the color gamut of general CMYK printing, and it can be used as much as possible to the printing color gamut. Therefore, it has been widely accepted as a standard before printing.

The CMYK Working Space should select the ICC Profile we print or print. This sets the working color gamut of the CMYK image and also affects the effect of Soft Proofing on the display. Therefore, we should select the corresponding light powder paper or newspaper ICC Profile according to the printing process of each of our images (such as glossy paper and newspapers). If users want to reuse CMYK settings of Photoshop4 or Photoshop5, select Custom CMYK to use. The dot Gain setting of the ink, of course, the color displayed by the monitor will not be as accurate as using the ICC Profile! (Figure 2 and Figure 3)