User manual
21 • SELECTIVE COLOR CHANGES
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ColorQuartet 5.0 Pro
21•Selective color changes
Making selective color changes
In digital repro, specific colors in an image can be adjusted or changed without affecting other
parts of the image. ColorQuartet includes three functions for selective color control: Selective
Color, Selective Hue and Burn Out Background. All three are accessed from the Color menu or the
tool bar and are described below.
Selective Color and Selective Hue
1 • To change the saturation, hue, and/or lightness of a range of colors, first click on the
desired part of the image in the
feedback window.
2 • To change the saturation and/or hue of the colors chosen, drag the small black circle to
another spot on the color wheel, or type the desired values into the densitometer
.
NOTE: Changes made with Selective Color affect only those parts of the image that are within a
rather restriced lightness area. Its center is indicated by the white rectangle on the lightness
scale.
• To change the lightness of the colors chosen, drag the black rectangle to a different position
on the lightness scale.
• In the Selective Color window, the saturation and hue of the color you
clicked on are indicated on the color wheel by a small white circle with a
larger, thinner circle around it and a small black circle inside it.
• The color’s lightness is indicated by a white rectangle on the lightness scale
with a smaller black rectangle inside it.
• The Selective Hue function is similar to Selective Color, but instead of being
circular, the area of colors affected is a triangular section of the color wheel,
like a piece of pie. This represents the whole range of saturation values
within a given hue or hues, and the whole range of lightness values.
• The effect will be greatest on the colors closest to the small white circle, and
will decrease gradually to zero as you move towards the larger white circle
(Selective Color) or the white borders of the triangle (Selective Hue).
• Dragging towards or away from the center of the color wheeel affects the
saturation (color intensity).
• Dragging to a different angle (i.e., around the color wheel) affects the hue.
• To change the range of hues and saturations affected, drag the thin white
circle or the white borders of the triangle to make the area larger or smaller.