Canon EOS-1D C Picture Style Editor Ver.1.15 for Windows Instruction Manual - Page 18
Color Display Mode, Adjusting the Gamma Characteristic for Luminosity
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Color Display Mode You can select the color display mode which will be the basis for color adjustment from three options (HSL, Lab, or RGB) as well as checking values for adjusted colors. Switches the color display mode Color value after adjustment Color value before adjustment When "HSL" is selected for the color display mode, you can only change the color value for before adjustment by entering a number. HSL is a color display mode using the three elements of hue (H), saturation (S), and luminosity (L). Lab is a color mode developed by the CIE (Commission Internationale d'Eclairage) where L is for lightness, a for color elements from green to magenta, and b for color elements from blue to yellow. RGB is a color display mode using red (R), green (G) and blue (B), the three primary colors (additive colors) of the visible light spectrum. Adjusting the Gamma Characteristic for Luminosity You can adjust the brightness and contrast for the luminosity of the entire image using the tone curve. To further adjust contrast and brightness after adjusting image characteristics with the [Six ColorAxes] tab sheet or [Specific Colors] tab sheet, use the tone curve in this [Specific Colors] tab sheet. Adjust the brightness and contrast. Click to add a [ ] (adjustment point) and adjust by dragging Introduction Contents Preparing a Sample Basic Windows Pre-adjustments The value of the selected point (you can also enter numerical values) The brightness and contrast of the image change. The horizontal axis shows the input level and the vertical axis shows the output level. The maximum number of [ ] is 10. To delete a [ ], select the [ ] and then either press the key on the keyboard or double-click on the [ ]. Image Characteristics Saving Preferences Reference 17