Text Enhanced, Threshold, Tone Curve, Tone Tab | Canon CS-S 4.3

CONTENTS

INDEX

Glossary 101

Text Enhanced

A feature used by ScanGear CS-S to increase the accuracy of text scans. When Text Enhanced is the scan mode, images are scanned as Grayscale (8 bits per pixel) and converted to Black and White (1 bit per pixel) using Canon ImageTrust processing software.

Threshold

In a bilevel image, the point at which a gray pixel is determined to become either black or white. This image option is available in the FB1200S tab in ScanGear CS-S.

Tone

The shading and combination of colors in the image.

Tone Curve

The curve displayed with the Tone tab tools to indicate the Black-, Mid-, and White-point tones in a color or grayscale preview image. You cannot edit the curve except with the Special Tone Curves tool.

Tone Tab

The Tone tab contains tools that let you adjust and correct the image tone. The Tone tab tools are:

•Automatic

•Contrast/Brightness

•Gamma

•Histogram

•Special Tone Curves

Toolbar

A set of ScanGear CS-S tool buttons, located above the preview area, for image selection, orientation, and other basic adjustments.

TWAIN

TWAIN refers to an industry standard for transferring information from devices (such as a scanner or digital camera) to your computer. One interpretation of the acronym is “Technology Without An Interested Name.”

Underexposed

An image that was exposed to too little light when it was photographed.

101

Image 101

Canon CS-S 4.3 manual Text Enhanced, Threshold, Tone Curve, Tone Tab, Underexposed

Contents

UsersGuide Quick Start Guide How to Make Best Use of the Manuals Copyright Notice Contents Scanning Devices Glossary Index Setting Up ScanGear Toolbox CS Welcome to ScanGear CS-S Introduction to ScanGear CS-SSystem Requirements Hardware About ScanGear CS-S Windowless Mode Feature ListAbout ScanGear CS-S Software Assumptions About this User’s GuideCanon Technical Support Installing ScanGear CS-S Installing ScanGear CS-S Selecting ScanGear CS-S Where to Go From HereRemoving ScanGear CS-S Next Steps Getting Help in ScanGear CS-S Scanning Using ScanGear CS-S with an ApplicationAbout Scanning Twain Interface Preview Area Features of the ScanGear CS-S WindowAcquiring an Image Clear, Preview and Scan Buttons Settings TabsToolbar Status and Message Areas Previewing an Image Quick Start to ScanningPreparing the Scanner Contents Contents Glossary Index Now you are ready to scan Where is the Scanned Image? Scanning in Windowless UI-less Mode Changing the Preview Image Shape and Size Using the ToolbarWorking with Preview Images Moving an Image Cropping Part of an ImageZooming In and Out Creating a Negative Image Rotating an Image Left or Right Reversing an ImageDisplaying or Hiding the Rulers Selecting Automatic Tone Correction Specifying How the Image is Previewed Setting Scanning Mode Setting Scan Mode, Resolution, and Dimensions To set scanning mode Selecting a Preset Resolution Selecting Scan Resolution Deleting a Custom Resolution Selecting a Custom Resolution Changing a Custom Resolution Selecting Output Dimensions Maintaining Image Proportion Setting Units of MeasurementSetting Image Width and Height Setting Scale About the Tone Tab Settings Setting Image Tones Selecting a Color Channel About the Tone Curve Window Using the Auto Tone Setting Adjusting Contrast and Brightness Changing Gamma Curve Values Glossary Index Change Tone Using the Histogram Tool Do one of the following to change the black point Do one of the following Using Preset or Custom Curves About 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 Hints for Editing Custom Tone Curves Opening a Saved Custom Tone Curve Selecting Text Enhanced Setting General PreferencesUsing Text Enhanced for Scans About Canon ColorGear Color Matching Using Canon ColorGearTM Color Matching Selecting a Monitor Profile Setting Up the Preview Options Configuring a Device with ScanGear CS-S Configuring Scanning DevicesScanning Devices Image Source Descreen Threshold Setting Test Scanner Shut Off Lamp Time Chapter Scanning Devices Scanning Multi-Page Documents Using the Automatic Document Feeder ADF About Scanning Techniques Scanning TechniquesPlanning for the End Result Preparing the Material to Scan Matching 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 Histogram Techniques Gamma Adjustments Contents Contents Sampling a Tone for the Histogram About Image Color and Color Channels Enhancing Color Images Contents Glossary Index About ScanGear Toolbox CS Using ScanGear Toolbox CSInstalling and Uninstalling ScanGear Toolbox CS About the ScanGear Toolbox CS Bar Starting ScanGear Toolbox CS Removing 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 Showing the Copy Button on the ScanGear Toolbox CS Bar Copying Acquired Images With 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 Application Mailing Acquired Images Linking a Fax Application Configuring Fax Settings Showing the Fax Button on the ScanGear Toolbox CS Bar Faxing Acquired Images Configuring Edit or Custom Settings Linking an Edit or Custom Application Contents Selecting a ScanGear Toolbox CS Source Changing ScanGear Toolbox CS Preferences Specifying ScanGear Toolbox CS Appearance Cleaning Up Temporary Files Using 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 Edit or Custom Image Fax Image Pre-Scan Checklist Frequently Asked Questions Top Ten List Scanner diagnostics test displays a test failed message Troubleshooting Q & a ScanGear CS-S does not launch Your graphics application cannot find the scannerSome functions are grayed-out Parts of images are missing or misaligned Printing or scanning is too slow Preview image is too small on my monitor Automatic document feeder is jammed Glossary Automatic Tone AdjustmentAcquired Images Bits and Bit Depth Contents Index Custom Resolutions Curve ChartDefault Color Wheel Dpi DigitizingDriver Easy Acquire Grainy Gamma CorrectionHeight Histogram Tool Low Contrast Optical ResolutionMid-Point Eyedropper Mid-Tone Preset Curves Output DimensionsOutput File Formats Output Size Scan Mode ResolutionScan Resolution Rotate Left/Right Selection Tool System DefaultShortcut Menus Sliders Threshold Text EnhancedTone Tone Curve White-Point Eyedropper Units of MeasurementWidth Width-Height Ratio Index 104 105 106 107 108 OE-022AA 0399 CDS Canon Inc