Canon CS-S 4.3 manual Sampling a Tone for the Histogram

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CONTENTS

 

Chapter 5

62

 

 

Scanning Techniques

 

GLOSSARY

 

 

 

 

 

 

 

INDEX

You can also achieve some special effects by manipulating the black-point, mid-point, and white-point values to the extreme. In the following figure, the Mid-point has been moved to the right of the White-point, producing a solarizing effect to the lighter areas of the image.

Although the Special Tone Curves provide the best facility for manipulating an image for special effects, you can experiment with any of the tone tools.

Sampling a Tone for the Histogram

To sample a tone for the histogram, zoom in as close as possible and sample the black point, midpoint, and white point from an enlarged section, to make sure you are sampling the shading you want. This is especially important when you are adjusting an image with many dark tones and midtones, and it may be difficult to determine the darkest or brightest spot with the naked eye.

If necessary, select a section from which to sample, and re-preview the image, then select the sample.

To sample a tone for the Histogram:

1.Zoom in on the area of the image from which you want to take a sample.

2.Using the Crop tool, select an area of the zoomed-in image from which to take the sample.

3.Click Preview to re-preview the image. The preview image displays only the selected, enlarged area.

4.On the Tone tab, select the Eyedropper tool for the Black-point, Mid-point, or White-point values.

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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 IndexSystem Requirements Introduction to ScanGear CS-SWelcome to ScanGear CS-S HardwareAbout ScanGear CS-S Feature ListAbout ScanGear CS-S Windowless Mode SoftwareAssumptions About this User’s GuideCanon Technical Support Installing ScanGear CS-S Installing ScanGear CS-SRemoving ScanGear CS-S Where to Go From HereSelecting ScanGear CS-S Next StepsGetting Help in ScanGear CS-S About Scanning Using ScanGear CS-S with an ApplicationScanning Twain InterfacePreview Area Features of the ScanGear CS-S WindowAcquiring an Image Toolbar Settings TabsClear, Preview and Scan Buttons 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 Zooming In and Out Cropping Part of an ImageMoving an Image Creating a Negative ImageDisplaying or Hiding the Rulers Reversing an ImageRotating an Image Left or Right 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 Scanning Devices Configuring Scanning DevicesConfiguring a Device with ScanGear CS-S Image SourceThreshold Setting DescreenTest Scanner Chapter Scanning Devices Shut Off Lamp TimeUsing the Automatic Document Feeder ADF Scanning Multi-Page DocumentsPlanning for the End Result Scanning TechniquesAbout Scanning Techniques 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 monitorAcquired Images Automatic Tone AdjustmentGlossary Bits and Bit DepthContents Index Default Curve ChartCustom Resolutions Color WheelDriver DigitizingDpi Easy AcquireHeight Gamma CorrectionGrainy Histogram ToolMid-Point Eyedropper Optical ResolutionLow Contrast Mid-ToneOutput File Formats Output DimensionsPreset Curves Output SizeScan Resolution ResolutionScan Mode Rotate Left/RightShortcut Menus System DefaultSelection Tool SlidersTone Text EnhancedThreshold Tone CurveWidth Units of MeasurementWhite-Point Eyedropper Width-Height RatioIndex 104 105 106 107 108 OE-022AA 0399 CDS Canon Inc