Canon CS-S 4.3 manual Gamma Correction, Grainy, Height, Histogram Tool, Interpolation, Image Tone

Page 96

CONTENTS

INDEX

Glossary 96

Gamma Correction

The process of adjusting the midtones to improve an image.

Grainy

An image with rough, uneven texture or tone.

Grayscale

Grayscale refers to a single-channel image made up of 256 (8 bit)/4096 (12 bit) shades of gray, ranging from white to black, that represent all tones in an image.

Height

The Height text box contains the height of the current selection, or, if there is no selection, the maximum vertical output size, based on the currently selected Paper Size.

Histogram Tool

The Histogram displays the distribution of bright and dark pixels for each color channel in the previewed image. The Eyedropper tool on the histogram graph lets you redefine the tonal profile. You can save the settings for Black-point, Mid-point, and White-point settings in a histogram file with the extension *.HST.

Interpolation

The process of adding digital information to an image to increase resolution.

Image Tone

See Tone.

Image Type

The type of image, such as color or grayscale.

JPEG File Format

An image file format developed by the Joint Photographic Experts Group, as a standard for storing color images in less space, with the file format .jpg.

Keep Proportions Button

The Keep Proportions button affects the selection and the Width and Height text boxes. When you click the Keep Proportions button, the image size is maintained in the same proportion whenever you change either the width or the height.

96

Image 96

Contents UsersGuide How to Make Best Use of the Manuals Quick Start GuideCopyright Notice Contents Scanning Devices Setting Up ScanGear Toolbox CS Glossary IndexIntroduction to ScanGear CS-S Welcome to ScanGear CS-SSystem Requirements HardwareFeature List About ScanGear CS-S Windowless ModeAbout ScanGear CS-S SoftwareAbout this User’s Guide Canon Technical SupportAssumptions Installing ScanGear CS-S Installing ScanGear CS-SWhere to Go From Here Selecting ScanGear CS-SRemoving ScanGear CS-S Next StepsGetting Help in ScanGear CS-S Using ScanGear CS-S with an Application ScanningAbout Scanning Twain InterfaceFeatures of the ScanGear CS-S Window Acquiring an ImagePreview Area Settings Tabs Clear, Preview and Scan ButtonsToolbar Status and Message AreasQuick Start to Scanning Preparing the ScannerPreviewing an Image Contents Contents Glossary Index Now you are ready to scan Scanning in Windowless UI-less Mode Where is the Scanned Image?Using the Toolbar Working with Preview ImagesChanging the Preview Image Shape and Size Cropping Part of an Image Moving an ImageZooming In and Out Creating a Negative ImageReversing an Image Rotating an Image Left or RightDisplaying or Hiding the Rulers Selecting Automatic Tone CorrectionSpecifying How the Image is Previewed Setting Scan Mode, Resolution, and Dimensions Setting Scanning ModeTo set scanning mode Selecting Scan Resolution Selecting a Preset ResolutionSelecting a Custom Resolution Deleting a Custom ResolutionSelecting Output Dimensions Changing a Custom ResolutionSetting Units of Measurement Setting Image Width and HeightMaintaining Image Proportion Setting Scale Setting Image Tones About the Tone Tab SettingsAbout the Tone Curve Window Selecting a Color ChannelUsing the Auto Tone Setting Adjusting Contrast and Brightness Changing Gamma Curve Values Change Tone Using the Histogram Tool Glossary IndexDo one of the following to change the black point Using Preset or Custom Curves Do one of the followingUsing 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 Opening a Saved Custom Tone Curve Hints for Editing Custom Tone CurvesSetting General Preferences Using Text Enhanced for ScansSelecting Text Enhanced Using Canon ColorGearTM Color Matching About Canon ColorGear Color MatchingSelecting a Monitor Profile Setting Up the Preview Options Configuring Scanning Devices Configuring a Device with ScanGear CS-SScanning Devices Image SourceThreshold Setting DescreenTest Scanner Chapter Scanning Devices Shut Off Lamp TimeUsing the Automatic Document Feeder ADF Scanning Multi-Page DocumentsScanning Techniques About 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? Gamma Adjustments Histogram TechniquesContents Contents Sampling a Tone for the Histogram Enhancing Color Images About Image Color and Color ChannelsContents Glossary Index Using ScanGear Toolbox CS Installing and Uninstalling ScanGear Toolbox CSAbout ScanGear Toolbox CS Starting ScanGear Toolbox CS About the ScanGear Toolbox CS BarSetting 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 Copying Acquired Images Showing the Copy Button on the ScanGear Toolbox CS BarWith the ScanGear CS-S window open, do the following Configuring Mail Settings Linking a Mail Application Showing the Mail Button on the ScanGear Toolbox CS BarMailing Acquired Images Configuring Fax Settings Linking a Fax ApplicationFaxing Acquired Images Showing the Fax Button on the ScanGear Toolbox CS BarConfiguring Edit or Custom Settings Linking an Edit or Custom Application Contents Changing ScanGear Toolbox CS Preferences Selecting a ScanGear Toolbox CS SourceCleaning Up Temporary Files Specifying ScanGear Toolbox CS AppearanceUsing 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 Fax Image Edit or Custom ImageFrequently Asked Questions Pre-Scan ChecklistTop Ten List Troubleshooting Q & a Scanner diagnostics test displays a test failed messageYour graphics application cannot find the scanner Some functions are grayed-outScanGear CS-S does not launch Printing or scanning is too slow Parts of images are missing or misalignedAutomatic document feeder is jammed Preview image is too small on my monitorAutomatic Tone Adjustment GlossaryAcquired Images Bits and Bit Depth Contents Index Curve Chart Custom ResolutionsDefault Color WheelDigitizing DpiDriver Easy AcquireGamma Correction GrainyHeight Histogram ToolOptical Resolution Low ContrastMid-Point Eyedropper Mid-ToneOutput Dimensions Preset CurvesOutput File Formats Output SizeResolution Scan ModeScan Resolution Rotate Left/RightSystem Default Selection ToolShortcut Menus SlidersText Enhanced ThresholdTone Tone CurveUnits of Measurement White-Point EyedropperWidth Width-Height RatioIndex 104 105 106 107 108 OE-022AA 0399 CDS Canon Inc