Nikon 9235 Reference Manual - Page 77
Contrast, Brightness, Color Balance
UPC - 018208092352
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Color Balance The Color Balance palette offers simple controls for adjusting overall brightness, contrast, and color balance for the entire image. Unlike the Curves palette, the Color Balance palette does not allow you to make changes that affect only a portion of the tone range. The controls available in the Color Balance palette are detailed below. Note that when the selected color model is "grayscale," the Color Balance palette contains only brightness and contrast controls, while when "CMYK" is selected the palette contains a slider for each of the cyan, magenta, yellow, and black channels in addition to brightness and contrast controls. Item Description Brightness The brightness slider adjusts brightness for the entire image. Dragging the brightness slider in the + direction brightens all the colors in the image. Dragging the slider in the - direction darkens all the colors in the image. A value for brightness between -100 and +100 can be entered directly in the text box to the right of the slider. Contrast Dragging the contrast slider in the + direction heightens the difference between highlights and shadows in the image, increasing contrast. Dragging the slider in the - direction decreases the difference between light and dark portions of the image, lowering contrast. A value for contrast between -100 and +100 can be entered in the text box to the right of the slider. Reference:The Tool Chest Changes to color balance are only apply when the check-box at the top left of the Color Balance palette is checked. When this box is checked, changes will be visible in the image being edited. The box can be checked and unchecked for a quick "beforeand-after" comparison, allowing you to see whether changes to color balance are having the desired effect. 76