Adobe Photoshop CS2 CLASSROOM IN A BOOK [Electronic resources] نسخه متنی

1.

Click the Go to Bridge button () on the tool options bar to open Adobe Bridge, or choose File > Open, to open the 16Start.tif file from the Lessons/Lesson16 folder.

The Missing Profile notice appears, offering three options: Leave as is (don't color manage); assign the Adobe RGB working space (which is specified in your North American Prepress 2 Color Settings); or assign a profile from a pop-up menu of profile choices and optionally convert the document to the working RGB space.

2.

Select the "Assign profile: Adobe RGB (1998)" option, select the "and then convert document to working RGB" check box, and click OK.

An RGB image of a scanned postcard opens.

When you choose to convert a document's color to the Photoshop working space, Photoshop compares the color space in the image file's embedded color profile (if any) with the color space you defined in the Color Settings dialog box. Photoshop then converts the image file's colors as necessary to display the image onscreen as accurately as possible.

NoteDepending on what you specify in the Color Settings dialog box and what image you're opening, you might encounter the Embedded Profile Mismatch notice. If so, select the "Convert document's colors to the working space" option, and then click OK.

Before soft-proofingthat is, proofing onscreenor printing this image, you'll set up a proof profile. A proof profile (also called a proof setup) defines how the document is going to be printed, and adds those visual properties to the onscreen version for more accurate soft-proofing. Photoshop provides a variety of settings that can help you proof images for different uses, including print and display on the Web. For this lesson, you'll create a custom proof setup. You can then save the settings for use on other images that will be output the same way.

3.

Choose View > Proof Setup > Custom. The Customize Proof Conditions dialog box opens.

4.

Make sure that the Preview box is checked.

5.

From the Device to Simulate menu, choose a profile that represents a final-output source color profile, such as that for the printer you'll use to print the image. If you don't have a specific printer, the profile Working CMYK - U.S. Web Coated (SWOP) v2 is generally a good choice.

6.

Make sure that Preserve Color Numbers is not selected. Leaving this option off simulates how the image will appear if colors are converted from the document space to their nearest equivalents in the proof profile space.

NoteThis option is not always available, and it is grayed out and unchecked for the U.S. Web Coated (SWOP) v2 profile.

7.

From the Rendering Intent menu, choose a rendering intent for the conversion, such as Relative Colorimetric, which a good choice for preserving color relationships without sacrificing color accuracy.

8.

If they're available for the profile you chose, select the Simulate Ink Black and Simulate Paper Color check boxes.

Notice that the image appears to lose contrast. Ink Black simulates the dynamic range defined by an image's profile. Paper Color simulates the specific shade of white for the print medium defined by an image's profile. That is, the whites in the image are now simulating the white of paper.

Normal image

Image with Ink Black and Paper Color options checked

9.

Click OK.

To turn the proof settings off and on, choose View > Proof Colors.