Canon N1220U, N656U, N650U manual Tone Curve Settings, Manipulating the Graph

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S T E P 3

Tone Curve Settings

You can edit the tone curve directly by changing the shape of the line on the graph. When you change the setting by manipulating the curve, you can perform fine adjustments in the brightness of only the shadows, only the highlights, or both the shadows and highlights.

Hint

• You cannot use this feature with the black and white or color scan modes when ColorSync is selected.

Manipulating the Graph

The following examples show you how to manipulate the graph to change the settings. When you test these settings yourself, you can see the changes immediately reflected in the preview window or the browser to achieve many interesting effects.

Unadjusted Curve

OUTPUT

If you want to brighten the light areas ...

INPUT

If you want to invert the shadows and highlights ...

Drag the mid-tones of the input side (scanned image) into the highlights of the output side (displayed image)

OUTPUT

INPUT

Reverse the starting and end points of the line to invert shadows and highlights.

OUTPUT

INPUT

(If the image is in color, the colors are switched to their complementary colors.)

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Contents Users Guide How to Make Best Use of the Manuals When you open the boxWhere to Look How to Use this GuideAbout the Conventions Used in this Guide Table of Contents Adjusting Scanned Images Installing Plug-in Module CS-U Operating EnvironmentControl Panel Features Image Size ppScanning Procedures E PPlug-in Module CS-U Special Features See the Results of Adjustments Immediately Dynamic PreviewGamma Curve Adjusts Image Brightness ColorSync Ver 2.0 + Compatible for Auto Tone CorrectionInstall Plug-in Module CS-U Quick Start InstructionsStart Plug-in Module CS-U Position materials for scanning and preview themVerify Image Quality with the Browser Function before Specify the Area of the Image to be ScannedClick on the Browser button Selection frame will appear Select the area to be scanned by clicking and draggingScan the Image p Save the Scanned Image pE P Displaying the Plug-in Module CS-U Control Panel RGB ValuesOperating Procedures Positioning Originals ProceduresPlace the original on the scanners document glass Previewing Click on the Preview buttonSelecting the Output Device Setting the Resolution and Magnification Output Device Resolution= 720 dpi, Magnification= 100%To Set the Magnification Factor Set the desired magnification factor on the control panelSetting the Scan Mode Black and WhiteGrayscale Color DocumentsClick the arrow beside Scan Mode Select a scan mode from the pop-up menuVerifying the Image before Scanning To Verify the ImageRotating the Image Use these buttons to rotate the imageOutput Device Setting PreferencesAspect Ratio Unit Preview WindowCalibration Reset Default SettingsClose Plug-in After Scan Operating Procedures Scanning Setting the Scan Area Position the pointer in the preview windowZooming Procedures to ZoomSelect the area you want to enlarge with the zoom function Click on the Zoom In button Scanning To Initiate the ScanSpecify the Scan Area Click on the Scan buttonSaving Scanned Images Enter a name for the file and click the Save buttonBlack & White Grayscale, Color Photos and Color DocumentsColor Photos and Color Documents Tone Adjustment Tone Adjustment DialogHistogram Settings How to Interpret HistogramsTo Adjust a Histogram How to Adjust HistogramsClick on the OK button Shadow MarkTone Curve Settings Manipulating the GraphTo Edit the Tone Curve Click the OK buttonRelationship Between the Tone Curve Image Brightness Value =Contrast Brightness and Contrast SettingsBrightness To Adjust the Brightness and Contrast Adjusting the Color Balance Operating ProcedureMatching the Gamma Value to the Display Characteristics Gamma Value SettingsGamma value To Change the Gamma Value Settings Adjusting the Threshold Value To Set the Threshold ValueAuto Tone Correction To Set the Auto Tone CorrectionStandard ColorSyncUnsharp Mask Open the Image menu and select Unsharp MaskDescreen Open the Image menu and select DescreenTo Save Settings in a Settings File Saving/Recalling SettingsClick the Save button To Recall a Settings File Optical and Enhanced Resolutions Matching Scan Resolution to PurposeScanning Techniques Appendices Troubleshooting Problem Scan button cannot be selected Error Messages Error MessageCause ResponseGlossary Auto Tone CorrectionBits/Bit Numbers Black Eyedropper ToolColor Channel DotImage File HistogramMagnification Optical Resolution ResolutionMoiré PixelScan Mode ShadowsThreshold Value Tone CurveIndex Output device 7, 11, 18, 25Page Canon Customer Support Help Desk Canon Computer SYSTEMS, INCOE-040AA 052000 CDS Canon Inc