Canon imageCLASS MF4150 MF4100 Series Scanner Driver Guide - Page 45
Tone Curve Settings, Contrast] or [Invert the Negative/Positive
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Introduction 1 Scanning a Document 2 Troubleshooting 3 Appendix 4 ● Tone Curve Settings This dialog box enables you to adjust the brightness of a specific area of an image by selecting the type of the tone curve. The tone curve is a graph showing the balance of tone input and output. Back Previous Next TOP [Channel] Select a color to adjust either [Red], [Green], or [Blue], or select [Master] to adjust all three colors together when [Color] or [Color (Documents)] is selected in [Color Mode]. Adjust the elements of grayscale when [Grayscale] is selected in [Color Mode]. [Select Tone Curve] Select the tone curve from [No Correction], [Over Exposure], [Under Exposure], [High Contrast] or [Invert the Negative/Positive Image]. [Reset] Resets all the current settings to their default values. Table of Contents Index 2-32