Adjusting pixel selections, Move, hide, or invert a selection – Adobe Photoshop CS4 User Manual
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USING PHOTOSHOP CS4
Selecting and masking
Last updated 1/10/2010
Increasing fuzziness expands selection
If you selected Localized Color Clusters, use the Range slider to control how far or near a color must be from the sample
points to be included in the selection. For example, your image contains a patch of yellow flowers in both the
foreground and the background, but you want to select just the foreground flowers. Sample the colors in the
foreground flowers and reduce the Range so that the similarly colored flowers in the background are not selected.
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Adjust the selection:
•
To add colors, select the plus eyedropper, and click in the preview area or image.
•
To remove colors, select the minus eyedropper, and click in the preview area or image.
To activate the plus eyedropper temporarily, hold down Shift. Hold down Alt (Windows) or Option (Mac OS) to
activate the minus eyedropper.
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To preview the selection in the image window, choose a Selection Preview option:
None
Shows the original image.
Grayscale
shows white for completely selected pixels, gray for partially selected ones, and black for unselected ones.
Black Matte
Shows the original image for selected pixels, and black for unselected ones. This option is good for bright
images.
White Matte
Shows the original image for selected pixels, and white for unselected ones. This option is good for dark
images.
Quick Mask
shows unselected areas as a rubylith overlay (or a custom color you’ve specified in the Quick Mask
Options dialog box).
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To revert to the original selection, hold down Alt (Windows) or Option (Mac
OS), and click Reset.
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To save and load color range settings, use the Save and Load buttons in the Color Range dialog box to save and reuse
the current settings.
Note: If you see the message “No pixels are more than 50% selected,” the selection border will not be visible. You may
have picked a color choice from the Select menu, such as Reds, when the image didn’t contain any red hues with high
enough saturation.
Adjusting pixel selections
Move, hide, or invert a selection
You can move a selection border around an image, hide a selection border, and invert a selection so that the previously
unselected part of the image is selected.