2011

Table Of Contents
CMY
HSV
HLS
Y'CbCr (YUV) 709
Y'CbCr (YUV) 601
YIQ
CIE XYZ
CIE Yxy
CIE L*a*b*
CIE L*u*v*
Processing Images with Photo Lab
The Photo Lab tool lets you simulate camera exposure and photo development
changes in images. You can change the exposure to brighten or darken an
image in incremental steps, providing perceptually relative uniform changes
in luminance. Photo development adjustments can produce images with
different color distribution.
Photo Lab Processing
With the Photo Lab tool, you can set the exposure, gamma, pivot, and lift of
each color channel independently and in a variety of units, such as F-stops
or printer lights for exposure.
The input image is first subjected to a gain adjustment, then to a gamma
correction around a pivot point, and finally to a lift. Each step is optional.
646 | Chapter 26 Color Correction