Bedienungsanleitung Adobe Photoshop 7 (Seite 481 von 549) (Englisch)

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Using Help | Contents | Index Back 481

Adobe Photoshop Help Printing (Photoshop)

Using Help | Contents | Index Back 481

2 Click the curve box next to the ink color box.

The default duotone curve, a straight diagonal line, indicates that the grayscale values in

the original image map to an equal percentage of ink. At this setting, a 50% midtone pixel

prints with a 50% tint of the ink, a 100% shadow is printed in 100% color, and so on.

3 Adjust the duotone curve for each ink by dragging a point on the graph or by entering

values for the different ink percentages.

• In the curve graph, the horizontal axis moves from highlights (at the left) to shadows

(at the right). Ink density increases as you move up the vertical axis. You can specify up

to 13 points on the curve. When you specify two values along the curve, Adobe

Photoshop calculates intermediate values. As you adjust the curve, values are automat-

ically entered in the percentage text boxes.

• In the text box, the value you enter indicates the percentage of the ink color that will be

used to represent the grayscale value in the original image. For example, if you enter 70

in the 100% text box, a 70% tint of that ink color will be used to print the 100% shadow

areas of the image. (See “

Using the Curves dialog box (Photoshop)” on page 139.)

4 Click Save in the Duotone Curve dialog box to save curves created with this dialog box.

5 Click Load to load these curves or curves created in the Curves dialog box, including

curves created using the Arbitrary Map option. (See “

Saving and loading duotone

settings” on page 482.)

You can use the Info palette to display ink percentages when you’re working with duotone

images. Set the readout mode to Actual Color to see the ink percentages that will be

applied when the image is printed. These values reﬂect any changes you’ve entered in the

Duotone Curve dialog box.

Specifying overprint colors

Overprint colors are two unscreened inks printed on top of each other. For example, when

a cyan ink prints over a yellow ink, the resulting overprint is a green color. The order in

which inks are printed, as well as variations in the inks and paper, can signiﬁcantly affect

the ﬁnal results.

To help you predict how colors will look when printed, use a printed sample of the

overprinted inks to adjust your screen display. Just remember that this adjustment affects

only how the overprint colors appear on-screen, not when printed. Before adjusting these

colors, make sure that you have calibrated your monitor following the instructions in

“

Creating an ICC monitor proﬁle” on page 117.

To adjust the display of overprint colors:

1 Choose Image > Mode > Duotone.

2 Click Overprint Colors. The Overprint Colors dialog box displays the combinations that

will result when the inks are printed.

3 Click the color swatch of the ink combination you want to adjust.

4 Select the color you want in the color picker, and click OK.

5 Repeat steps 3 and 4 until the overprint inks appear as you want them. Then click OK.

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