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Chapter 9. Pictures > To apply a custom contrast setting to a picture:

To apply a custom contrast setting to a picture:

1.
Choose the Item or Content tool.

2.
Click on a color bitmap picture or a color or gray scale TIFF, JPEG, PICT, Windows bitmap (BMP), PCX, PhotoCD, or Scitex CT picture.

You can't adjust the contrast of an EPS, a 1-bit (black-and-white) picture, or a color TIFF imported with the 16- or 32- bit Color TIFFs setting in Edit menu > Preferences > Application > Display folder tab. (If you've imported the picture already using that setting, choose 8-bit Color TIFFs, and then reimport the picture.)

3.
Choose Style menu > Contrast (Ctrl-Shift-C).

4.
Alt-click the Apply button to turn on continuous Apply.

5.
For a color picture, choose a color Model (HSB, RGB, CMY, or CMYK). Uncheck any individual box for a Color if you don't want it to be modified.

6.
Make any of the following adjustments, or use any of the other tools on the left side of the dialog box to make adjustments (see , next page).

To posterize the picture, click the second-to-last icon

or

To adjust the contrast manually, click the hand icon, then drag the entire contrast curve toward the upper left or lower right corner . To restore the picture's original contrast values, click the sixth (normal contrast) icon.

or

Choose the pencil tool, and draw a custom curve .

or

Click the Negative box to create a negative of the picture.

7.
Click OK or press Enter.

Note: As with cropping and rotating, it's better to flip a picture in its original application than in XPress—it will print and redraw more quickly. The flip commands flip the contents of a box. The text or picture can be modified in its flipped position. (To flip a Bézier box, and not its contents, see page 198.)


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