The basic way of color management in Photoshop (3)

Refer to the table below:

Option 3 is based on the current working color gamut settings of Photoshop6, but the original CMYK values ​​of the image are retained, so no conversion is performed, and the current working color gamut is used as the standard

Option 2 is set according to the current working color gamut of Photoshop 6, but the original LAB value of the image is retained, so it is converted

Select one to completely retain the original color gamut of the image, and the LAB and CMYK values ​​remain unchanged

It should be noted that this is just an example, and different choices should be made in each case. If the opened image does not have an Embed ICC Profile, Photoshop will ask more questions. It is important to know that each choice has a chance to change the color, so users should clearly understand the effects of different choices. If you have any questions, you should consult a color management consultant.

In Conversion Option, Engine chooses different CMM. Basically, it is good to choose Adobe (ACE), followed by Heidel beg CMM. The effect of the two is not much different, leaving the user to choose. Intent should choose Perceptual, and Use Black Point Compensation should not choose. (See Figure 8)

When we set all the options in Color Settings, we can save the whole set of settings. In this way, you can choose in Settings, which is convenient and convenient, which is indeed better than Photoshop5. (See Figure 9)

In addition to these settings, users need to understand that Photoshop6 has the biggest difference compared to Photoshop5..X. All the image colors of Photoshop5.X are based on the settings in Color Setting, so the RGB Working Space of all RGB images is the same, and so The CMYK Working Space is the same for all CMYK images. However, Photoshop 6 has made a big progress. The working space of each image can be tolerated differently. The settings in Color Settings are only a basic bottom line, and each image can also have an independent working space.

So now in Photoshop6, even if there are multiple images of the same color mode, such as multiple CMYK images, each can have its own CMYK Working Space, and we can also view the ICC profile of the Working Space of each image. (See Figure 10)

In addition, the difference from Photoshop5..X is that we can freely assign different ICC Profile in the Image Mode menu, and when saving the image, we can choose whether to embed the Working Space ICC Profile of the picture into the file, and In the View menu, the newly added Proof Setup allows users to anticipate the effect of emulating the working space color in other different processes / printers. Simulate Paper White also allows users to preview the White Point (mostly paper white) in the ICC Profile set by the Working Space and add it to the bottom color, making the preview more accurate.

4. Summary

We must know that in an idealized ICC workflow, when we know the source ICC profile of the image and the destination ICC profile, we can accurately reproduce the color. But beyond that, what is more important is the user's understanding of color management. The above is just the most basic to set color management in Photoshop6. To use it well, a thorough understanding is important, otherwise different processes may surprise users. Graphic Arts Testing Center or your color management consultant can provide relevant training to help you master the tips of color management!

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