Unsharp Mask | Canon N650U, N656U, N1220U manual

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Unsharp Mask

The Unsharp Mask function enhances the outlines of an image. When set to On, this function makes the image outlines appear sharper without changing the brightness, contrast or color balance, giving it a natural look. It is particularly useful for scanning images that are slightly out of focus.

The function is on when a check mark appears beside it and off when there is none. The default value is Off.

Caution

• This setting is not available for the black and white scanning mode.

•If Plug-in Module CS-U is started within an application that hides the Plug-in Module CS-U control panel, the previous setting will be maintained.

Operating Procedures

Open the [Image] menu and select [Unsharp Mask].

A check mark will appear beside the Unsharp Mask option in the menu when this function is set to On. To set it to Off, reselect it. The check mark will disappear.

Hint

• Disable the Unsharp Mask function if the moiré effect is still too strong even when the Descreen option is on.

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Image 50

Canon N650U, N656U, N1220U manual Open the Image menu and select Unsharp Mask

Contents

Users Guide How to Make Best Use of the Manuals When you open the box About the Conventions Used in this Guide How to Use this GuideWhere to Look Table of Contents Adjusting Scanned Images Installing Plug-in Module CS-U Operating Environment Control Panel Features Image Size pp Scanning Procedures E P Gamma Curve Adjusts Image Brightness Plug-in Module CS-U Special FeaturesSee the Results of Adjustments Immediately Dynamic Preview ColorSync Ver 2.0 + Compatible for Auto Tone Correction Start Plug-in Module CS-U Install Plug-in Module CS-UQuick Start Instructions Position materials for scanning and preview them Click on the Browser button Selection frame will appear Verify Image Quality with the Browser Function beforeSpecify the Area of the Image to be Scanned Select the area to be scanned by clicking and dragging Scan the Image p Save the Scanned Image p E P Displaying the Plug-in Module CS-U Control Panel RGB Values Operating Procedures Place the original on the scanners document glass ProceduresPositioning Originals Previewing Click on the Preview button Selecting 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 panel Grayscale Setting the Scan ModeBlack and White Color Documents Click the arrow beside Scan Mode Select a scan mode from the pop-up menu Verifying the Image before Scanning To Verify the Image Rotating the Image Use these buttons to rotate the image Aspect Ratio Setting PreferencesOutput Device Unit Preview Window Close Plug-in After Scan Reset Default SettingsCalibration Operating Procedures Scanning Setting the Scan Area Position the pointer in the preview window Select the area you want to enlarge with the zoom function Procedures to ZoomZooming Click on the Zoom In button Specify the Scan Area ScanningTo Initiate the Scan Click on the Scan button Saving Scanned Images Enter a name for the file and click the Save button Color Photos and Color Documents Grayscale, Color Photos and Color DocumentsBlack & White Tone Adjustment Tone Adjustment Dialog Histogram Settings How to Interpret Histograms To Adjust a Histogram How to Adjust Histograms Click on the OK button Shadow Mark Tone Curve Settings Manipulating the Graph To Edit the Tone Curve Click the OK button Relationship Between the Tone Curve Image Brightness Value = Brightness Brightness and Contrast SettingsContrast To Adjust the Brightness and Contrast Adjusting the Color Balance Operating Procedure Gamma value Gamma Value SettingsMatching the Gamma Value to the Display Characteristics To Change the Gamma Value Settings Adjusting the Threshold Value To Set the Threshold Value Standard Auto Tone CorrectionTo Set the Auto Tone Correction ColorSync Unsharp Mask Open the Image menu and select Unsharp Mask Descreen Open the Image menu and select Descreen Click the Save button Saving/Recalling SettingsTo Save Settings in a Settings File To Recall a Settings File Scanning Techniques Matching Scan Resolution to PurposeOptical and Enhanced Resolutions Appendices Troubleshooting Problem Scan button cannot be selected Cause Error MessagesError Message Response Bits/Bit Numbers GlossaryAuto Tone Correction Black Eyedropper Tool Color Channel Dot Magnification HistogramImage File Moiré Optical ResolutionResolution Pixel Threshold Value Scan ModeShadows Tone Curve Index Output device 7, 11, 18, 25Page Canon Customer Support Help Desk Canon Computer SYSTEMS, INC OE-040AA 052000 CDS Canon Inc