2011

Table Of Contents
2 Drag the Gamma field to change the value (you can also type values into
the field). Lower the gamma value to increase the contrast or raise the
gamma value to decrease the contrast.
Setting the Gain and Offset
You can boost the colors in an image by increasing the gain and offset values.
Gain and Offset controls multiply the pixel color values by the gain and then
adds the offset value. The resulting color values are clipped at the maximum
color value of 255 in 8-bit mode, or 1 in floating point mode.
You can also reduce the colors in the image by decreasing the gain and offset
values. The resulting color values are clipped at the minimum value of 0.
Gain is expressed as a percentage value. The default value of 100% has no
effect on the image since the color values are multiplied by 1.
NOTE You can set the gain for individual ranges, or across all ranges simultaneously
(by using the Gain fields in the global controls).
To boost or reduce the colors in the image:
1 Select the range that you want to modify.
2 Drag the Gain field for the color channel that you want to modify (you
may also type values into the field).
3 Drag the Offset field for the color channel that you want to modify (you
may also type values into the field).
Suppressing Colors
Unwanted color can be caused by factors such as inconsistent lighting
conditions during a shoot. This can result in images that contain unnatural
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