Canon CS-S 4.3 manual About the Tone Curve Window, Selecting a Color Channel

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CONTENTS

GLOSSARY

INDEX

Chapter 3	33
Scanning
Scanning

About the Tone Curve Window

The Tone Curve windows display more details about each tone setting. The shape of the tone curve changes to reflect the current settings in the selected channel. If Scan Mode is Color or Grayscale, and the Tone tab is selected, Contrast/Brightness is the Tone feature selected and displayed, by default. The curve is not directly editable unless the Special Tone Curves tool is active.

Selecting a Color Channel

If you are scanning a color image, you can change the contrast and brightness of the individual red, green, and blue tones in your image.

The Channel list has the following options:

Master	A combination of red, green, and blue.
Red	Lets you adjust only the red tones in the image.
Green	Lets you adjust only the green tones in the image.
Blue	Lets you adjust only the blue tones in the image.

If the menu is set to either red, green or blue, you see all three curves in the curve box. The Channel list is disabled if the mode is not Color and the Tone tab is not visible if you selected Black and White or Text Enhanced as your scan mode.

For more information about how to use the color channels to adjust the preview image, see the section, “Enhancing Color Images” in Chapter 5, “Scanning Techniques.”

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Contents UsersGuide Quick Start Guide How to Make Best Use of the ManualsCopyright Notice Contents Scanning Devices Glossary Index Setting Up ScanGear Toolbox CSWelcome to ScanGear CS-S Introduction to ScanGear CS-SSystem Requirements HardwareAbout ScanGear CS-S Windowless Mode Feature ListAbout ScanGear CS-S SoftwareAbout this User’s Guide Canon Technical SupportAssumptions Installing ScanGear CS-S Installing ScanGear CS-SSelecting ScanGear CS-S Where to Go From HereRemoving ScanGear CS-S Next StepsGetting Help in ScanGear CS-S Scanning Using ScanGear CS-S with an ApplicationAbout Scanning Twain InterfaceFeatures of the ScanGear CS-S Window Acquiring an ImagePreview Area Clear, Preview and Scan Buttons Settings TabsToolbar Status and Message AreasQuick Start to Scanning Preparing the ScannerPreviewing an Image Contents Contents Glossary Index Now you are ready to scan Where is the Scanned Image? Scanning in Windowless UI-less ModeUsing the Toolbar Working with Preview ImagesChanging the Preview Image Shape and Size Moving an Image Cropping Part of an ImageZooming In and Out Creating a Negative ImageRotating an Image Left or Right Reversing an ImageDisplaying or Hiding the Rulers Selecting Automatic Tone CorrectionSpecifying How the Image is Previewed Setting Scanning Mode Setting Scan Mode, Resolution, and DimensionsTo set scanning mode Selecting a Preset Resolution Selecting Scan ResolutionDeleting a Custom Resolution Selecting a Custom ResolutionChanging a Custom Resolution Selecting Output DimensionsSetting Units of Measurement Setting Image Width and HeightMaintaining Image Proportion Setting Scale About the Tone Tab Settings Setting Image TonesSelecting a Color Channel About the Tone Curve WindowUsing the Auto Tone Setting Adjusting Contrast and Brightness Changing Gamma Curve Values Glossary Index Change Tone Using the Histogram ToolDo one of the following to change the black point Do one of the following Using Preset or Custom CurvesUsing Predefined Tone Curves Using Custom Tone CurvesAbout the Curve Box Select Special Curve list, select Edit custom curve Curve is saved in the location you specify Hints for Editing Custom Tone Curves Opening a Saved Custom Tone CurveSetting General Preferences Using Text Enhanced for ScansSelecting Text Enhanced About Canon ColorGear Color Matching Using Canon ColorGearTM Color MatchingSelecting a Monitor Profile Setting Up the Preview Options Configuring a Device with ScanGear CS-S Configuring Scanning DevicesScanning Devices Image SourceDescreen Threshold SettingTest Scanner Shut Off Lamp Time Chapter Scanning DevicesScanning Multi-Page Documents Using the Automatic Document Feeder ADFAbout Scanning Techniques Scanning TechniquesPlanning for the End Result Preparing the Material to ScanMatching Scan Resolution to Purpose Optical and Enhanced Resolutions Resolution and ColorEstimating Image Sizes File Size Estimates Cropping the Image Shape Custom Tone Adjustments Contrast and Brightness AdjustmentsWhat Do Those Curves Mean? Histogram Techniques Gamma AdjustmentsContents Contents Sampling a Tone for the Histogram About Image Color and Color Channels Enhancing Color ImagesContents Glossary Index Using ScanGear Toolbox CS Installing and Uninstalling ScanGear Toolbox CSAbout ScanGear Toolbox CS About the ScanGear Toolbox CS Bar Starting ScanGear Toolbox CSSetting Up ScanGear Toolbox CS Adding a Button to the ScanGear Toolbox CS BarRemoving a Button from the ScanGear Toolbox CS Bar Enabling or Disabling Easy Acquire Configuring Copy Settings Showing the Copy Button on the ScanGear Toolbox CS Bar Copying Acquired ImagesWith the ScanGear CS-S window open, do the following Configuring Mail Settings Showing the Mail Button on the ScanGear Toolbox CS Bar Linking a Mail ApplicationMailing Acquired Images Linking a Fax Application Configuring Fax SettingsShowing the Fax Button on the ScanGear Toolbox CS Bar Faxing Acquired ImagesConfiguring Edit or Custom Settings Linking an Edit or Custom Application Contents Selecting a ScanGear Toolbox CS Source Changing ScanGear Toolbox CS PreferencesSpecifying ScanGear Toolbox CS Appearance Cleaning Up Temporary FilesUsing ScanGear Toolbox CS Shortcut Menus Canon Scanner Monitor Canon Monitor Utility DisplayRight-Clicking the Canon Scanner Monitor Icon ScanGear Toolbox CS Settings Summary Copy ImageMail Image Edit or Custom Image Fax ImagePre-Scan Checklist Frequently Asked QuestionsTop Ten List Scanner diagnostics test displays a test failed message Troubleshooting Q & aYour graphics application cannot find the scanner Some functions are grayed-outScanGear CS-S does not launch Parts of images are missing or misaligned Printing or scanning is too slowPreview image is too small on my monitor Automatic document feeder is jammedGlossary Automatic Tone AdjustmentAcquired Images Bits and Bit DepthContents Index Custom Resolutions Curve ChartDefault Color WheelDpi DigitizingDriver Easy AcquireGrainy Gamma CorrectionHeight Histogram ToolLow Contrast Optical ResolutionMid-Point Eyedropper Mid-TonePreset Curves Output DimensionsOutput File Formats Output SizeScan Mode ResolutionScan Resolution Rotate Left/RightSelection Tool System DefaultShortcut Menus SlidersThreshold Text EnhancedTone Tone CurveWhite-Point Eyedropper Units of MeasurementWidth Width-Height RatioIndex 104 105 106 107 108 OE-022AA 0399 CDS Canon Inc