Canon CanoScan D660U ScanGear CS-U 5.8 User's Guide - Page 47
Histogram Sheet, the image.
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chapter 4 What is on the Screen? Top Page Glossary Contents Index Histogram Sheet When the Histogram button is clicked, the Histogram sheet is displayed. Use the histogram to enhance an image when the image is either too light or too dark, like an overexposed or underexposed photograph. Increasing the darker tones with the histogram improves the contrast of the image. Channel If you want to select one of the primary colors (RGB) for adjusting the histogram, click the Channel down-arrow and select the color, or leave the setting at Master to adjust all colors. 47
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47
chapter 4
What is on the
Screen?
Top
Page
Glossary
Contents
Index
Histogram Sheet
When the Histogram button is clicked, the Histogram sheet is
displayed.
Use the histogram to enhance an image when the image is either too
light or too dark, like an overexposed or underexposed photograph.
Increasing the darker tones with the histogram improves the contrast of
the image.
Channel
If you want to select one of the primary colors (RGB) for adjusting the
histogram, click the Channel down-arrow and select the color, or leave
the setting at Master to adjust all colors.