Canon Pixma MG6821, Online Manual

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(1) Bright area (2) Dark area (3) Whole image
More data is distributed to the
highlight side.
More data is distributed to the
shadow side.
Data is widely distributed between the
highlight and shadow.
Adjusting Histograms (Using the Slider)
Select a Channel , then move (Black-point Slider) or (White-point Slider) to specify the level to be
set as the shadow or highlight.
• All parts to the left of (Black-point Slider) will be black (level 0).
• The parts at (Mid-point Slider) will turn to the color exactly between the black-point and white-
point.
• All parts to the right of (White-point Slider) will turn white (level 255).
When Image Adjustment is set to anything but None , the adjustments shown below are performed
automatically.
Moving the Black-point and White-point Sliders
Move the Black-point Slider or White-point Slider to adjust brightness.
Images with more data distributed to the highlight side
Move the Black-point Slider toward the highlight side.
Images with more data distributed to the shadow side
Move the White-point Slider toward the shadow side.
Images with widely distributed data
Move the Black-point Slider toward the highlight side, and White-point Slider toward the shadow side.
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