Canon CS-S 4.3 manual Selecting Scan Resolution, Selecting a Preset Resolution

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CONTENTS

GLOSSARY

INDEX

Chapter 3	27
Scanning
Scanning

The Grayscale options express varying shades of gray between white and black. The Grayscale (8 bit) option can express shades within a range of 256 gradations and the Grayscale (12 bit) option within a range of 4,096 gradations.

Note:	If you attempt to use the Color (36 bit) or Grayscale (12 bit)
	options to scan an image with a software application that
	does not support these options, the system may hang up.
	Before you use either 36 bit or 12 bit grayscale, check the
	specifications of the parent software application to confirm
	whether these options can be used. You can use Color (36 bit)
	and Grayscale (12 bit) with Photoshop Ver. 4.0 or later and
	with Photoshop LE enclosed with this package.

If you scan an image with a version of Photoshop compatible with 36 bit color and 12 bit grayscale, the image is scanned as a 16 bit Channel Mode image.

Selecting Scan Resolution

Using the Scan Resolution list, you can select the resolution of a scanned image based on the selected output device. This resolution becomes the base on which changes to image size and scale are calculated.

The resolution you choose depends on the limits of the printer or other output device. However, you can also select a custom resolution and make more specific resolution choices.

Note: The maximum resolution of the scanner is set at 600 dpi when the optional automatic document feeder (ADF) is installed.

Selecting a Preset Resolution

The list of preset resolutions should cover most of your scanning needs. Available resolution settings depend on the capabilities of the acquiring application.

To select a preset scan resolution:

Select an option from the Scan Resolution list.

Depending on your selected device, you have different resolution choices. For example, if the acquiring application is configured to print the image, your choices may be limited to the printer’s maximum resolution.

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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 CSHardware Introduction to ScanGear CS-SWelcome to ScanGear CS-S System RequirementsSoftware Feature ListAbout ScanGear CS-S Windowless Mode About ScanGear CS-SAbout this User’s Guide Canon Technical SupportAssumptions Installing ScanGear CS-S Installing ScanGear CS-SNext Steps Where to Go From HereSelecting ScanGear CS-S Removing ScanGear CS-SGetting Help in ScanGear CS-S Twain Interface Using ScanGear CS-S with an ApplicationScanning About ScanningFeatures of the ScanGear CS-S Window Acquiring an ImagePreview Area Status and Message Areas Settings TabsClear, Preview and Scan Buttons ToolbarQuick 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 Creating a Negative Image Cropping Part of an ImageMoving an Image Zooming In and OutSelecting Automatic Tone Correction Reversing an ImageRotating an Image Left or Right Displaying or Hiding the RulersSpecifying 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 Image Source Configuring Scanning DevicesConfiguring a Device with ScanGear CS-S Scanning DevicesDescreen Threshold SettingTest Scanner Shut Off Lamp Time Chapter Scanning DevicesScanning Multi-Page Documents Using the Automatic Document Feeder ADFPreparing the Material to Scan Scanning TechniquesAbout Scanning Techniques Planning for the End ResultMatching 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 jammedBits and Bit Depth Automatic Tone AdjustmentGlossary Acquired ImagesContents Index Color Wheel Curve ChartCustom Resolutions DefaultEasy Acquire DigitizingDpi DriverHistogram Tool Gamma CorrectionGrainy HeightMid-Tone Optical ResolutionLow Contrast Mid-Point EyedropperOutput Size Output DimensionsPreset Curves Output File FormatsRotate Left/Right ResolutionScan Mode Scan ResolutionSliders System DefaultSelection Tool Shortcut MenusTone Curve Text EnhancedThreshold ToneWidth-Height Ratio Units of MeasurementWhite-Point Eyedropper WidthIndex 104 105 106 107 108 OE-022AA 0399 CDS Canon Inc