Canon 4207B002 User Manual - Page 209

Adjusting Histogram Page 209 of 334 pages On-screen Manual > Scanning Guide > Correcting Images and Adjusting Colors with ScanGear (Scanner Driver) > Adjusting Histogram Adjusting Histogram In ScanGear (scanner driver)'s Advanced Mode tab, click (Histogram). 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 or Grayscale(16bit). 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.