Canon CS-S 4.3 manual Glossary Index, Change Tone Using the Histogram Tool

CONTENTS			Chapter 3	37
			Scanning
GLOSSARY
INDEX
	Change Tone Using the Histogram Tool
	The Histogram settings let you adjust the tone shadows for the preview
	image.
	Using the eyedroppers, you can sample the Black-point, Mid-point, and
	White-point tones in the preview image and base the image tone settings on
	the sampling. Using the corresponding text boxes, you can type a value in the
	Black-point, Mid-point, and White-point text boxes.
	The default values are:
	•	Black-point:	0
	•	Mid-point:	128
	•	White-point: 255

Under the histogram chart, you can slide the black, gray, and white arrows to adjust the tones. You cannot edit the histogram directly.

When you find a combination of tone settings you like, you can save the settings in a file and use it in future scanning sessions.

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