Canon MP550 Adjusting Histograms Using the Slider, Moving the Black-point and White-point Sliders

(1) Bright area	(2) Dark area	(3) Whole image
More data is distributed to the	More data is distributed to the	Data is widely distributed between the
highlight side.	shadow side.	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).

Image Adjustment is Auto by default. Adjustments shown below are automatically performed.

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.