Nikon 25385 User Manual - Page 185
Channel Selector, Curve Editor, Levels & Curves
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The Levels & Curves tool provides you with the following controls: q t y u i o !0 !1 !2 !3 e w r q Channel Selector The channel selector lets you select which channel, or portion of colors, you want to affect. The default is to edit all three channels, red, green, and blue, simultaneously. Click on this pull-down menu to select an individual channel to edit. Shortcut (while a Levels & Curves step is active): RGB Channels: Ctrl + ~ (Windows) command + ~ (Macintosh) Red Channel: Ctrl + 1 (Windows) command + 1 (Macintosh) Green Channel: Ctrl + 2 (Windows) command + 2 (Macintosh) Blue Channel: Ctrl + 3 (Windows) command + 3 (Macintosh) w Curve Editor The curve editor is where the majority of enhancements are made within the Levels & Curves tool. Within the curve editor, you are presented with a histogram that presents the total luminosity values within your image. Superimposed above this histogram, a curve is displayed that enables you to control the relationship of input luminosity values to output luminosity values. Chapter 20 - Adjust Menu | Light > Levels & Curves 183