Adjusting Histogram - Canon MX490 series Online Manual

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Adjusting Histogram

You can adjust the image color tone by using a graph (histogram) showing brightness distribution, via

(Histogram) in ScanGear (scanner driver)'s Advanced Mode tab.

• Click Defaults to reset all adjustments in the current window.

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."

Adjust the Red, Green, and Blue combined.

Adjust the Red channel.

Adjust the Green channel.

Adjust the Blue channel.

• 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.

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