Canon CS-S 4.3 manual Glossary, Acquired Images, Automatic Tone Adjustment, Bits and Bit Depth

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CONTENTS

Glossary

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INDEX

Glossary

Acquired Images

Images sent from your scanner software to the host graphics application.

ADF

Automatic Document Feeder, an optional attachment that lets your scanner perform continuous scanning of documents.

Automatic Tone Adjustment

Automatic analysis and adjustment of the image using Contrast/Brightness and Gamma settings.

Bits and Bit Depth

A bit (BInary digiT) is the smallest possible unit of information on a computer; it represents yes or no; on or off; 1 or 0. Bit Depth is used to describe the complexity of a graphic image.

One bit, or bilevel, images are black and white. This is the Black and White setting in ScanGear CS-S.

Grayscale (8 bit)

Expresses a dot in 256 shades of gray between white and black.

Grayscale (12 bit)

Expresses a dot in 4,096 shades of gray between white and black.

Color (24 bit)

Expresses a dot with 8 bits for each primary color for a total of 24 bits (8 bits x 3 colors=24 bits). A dot can be expressed in up to 16.8 million distinct shades(2563=16.8 million)

High Quality Color (36 bit)

Expresses a dot with 12 bits for each primary color, red, green, and blue (RGB), for a total of 36 bits (12 bits x 3 colors =36 bits). A dot can be ex- pressed in up to 68.7 billion distinct shades (4,0963=68.7 billion)

Black-Point

The darkest portion of an image scanned as Color or Grayscale. When you click on the image with the Black-point eyedropper, all tones darker than the selected sample tone are adjusted to black. See also Mid-point Eyedropper, White-point Eyedropper.

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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 SoftwareAssumptions About this User’s GuideCanon Technical Support 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 InterfacePreview Area Features of the ScanGear CS-S WindowAcquiring an Image Settings Tabs Clear, Preview and Scan ButtonsToolbar Status and Message AreasPreviewing an Image Quick Start to ScanningPreparing the Scanner Contents Contents Glossary Index Now you are ready to scan Scanning in Windowless UI-less Mode Where is the Scanned Image?Changing the Preview Image Shape and Size Using the ToolbarWorking with Preview Images 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 ResolutionMaintaining Image Proportion Setting Units of MeasurementSetting Image Width and Height 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 followingAbout the Curve Box Using Predefined Tone CurvesUsing Custom Tone Curves 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 CurvesSelecting Text Enhanced Setting General PreferencesUsing Text Enhanced for Scans 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 Estimating Image Sizes Optical and Enhanced ResolutionsResolution and Color File Size Estimates Cropping the Image Shape What Do Those Curves Mean? Custom Tone AdjustmentsContrast and Brightness Adjustments Gamma Adjustments Histogram TechniquesContents Contents Sampling a Tone for the Histogram Enhancing Color Images About Image Color and Color ChannelsContents Glossary Index About ScanGear Toolbox CS Using ScanGear Toolbox CSInstalling and Uninstalling ScanGear Toolbox CS Starting ScanGear Toolbox CS About the ScanGear Toolbox CS BarRemoving a Button from the ScanGear Toolbox CS Bar Setting Up ScanGear Toolbox CSAdding a Button to 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 Right-Clicking the Canon Scanner Monitor Icon Canon Scanner MonitorCanon Monitor Utility Display Mail Image ScanGear Toolbox CS Settings SummaryCopy Image Fax Image Edit or Custom ImageFrequently Asked Questions Pre-Scan ChecklistTop Ten List Troubleshooting Q & a Scanner diagnostics test displays a test failed messageScanGear CS-S does not launch Your graphics application cannot find the scannerSome functions are grayed-out 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 DepthContents 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