Adjusting Histogram - Canon MX520 series Online Manual

Adjusting Histogram

In ScanGear (scanner driver)'s Advanced Mode tab, click
Note
Click Defaults to reset all adjustments in the current window.
Channel
Each dot of an image is a mixture of Red, Green, and Blue in various proportions (gradation). These colors
can be adjusted individually as a "channel."
• Master
Adjust the Red, Green, and Blue combined.
• Red
Adjust the Red channel.
• Green
Adjust the Green channel.
• Blue
Adjust the Blue channel.
Note
Only Grayscale will be displayed in Channel when Color Mode is Grayscale.
Reading Histograms
You can see the histogram of a specified area for each Channel. The higher the histogram peak, the more
data is distributed to that level.
(1) Bright area
(Histogram).
(2) Dark area (3) Whole image