Canon FB630U/FB636U manual Tone Curve Settings, Manipulating the Graph

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S T E P 3

Tone Curve Settings

You can edit the gamma curve directly by changing the shape of the line on the graph. When you change the gamma 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 a Black & White (Line), color or high definition color file that has been set with ColorSync.

Manipulating the Graph

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

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

If you want to increase the light areas ...

If you want reverse the shadows and highlights ...

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

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

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Contents User’s Guide This page intentionally left blank About the Conventions Used in this Guide How to Use this GuideWhere to Look Table of Contents Appendices Control Panel Features Scanning Procedures E PPlug-in Module CS-U Special Features See the Results of Adjustments Immediately Dynamic PreviewGamma Curve Adjusts Image Brightness Supports ColorSync 2.0 or higher Auto Tone CorrectionInstalling Plug-in Module CS-U Quick Start InstructionsStart Plug-in Module CS-U Start the Preview ScanSet the preferences, magnification and scan mode settings Specify the Area of the Image to be Scanned pClick the Browser button Select the area to be scanned by clicking and draggingScan the Image p Click the Scan buttonSave the image with the application software, specifying a Folder, file name and file formatE P Display Plug-in Module CS-U Control Panel E PE P Operating Procedures Canon PhotoClick the Preview button PreviewingSet the original on the scanner document glass Set Preferences UnitE P Setting Basic Resolution Preview Window Settings Dialog Box E P Preview Window SizeReturn to Default Settings ProceduresE P Calibration Select the Prefs menu in the control panelOutput Device Resolution= 360 dpi, Magnification= 100% Set MagnificationE P To Set the Magnification Factor Set the desired magnification factor on the control panelSet Scan Mode Black & WhiteDiffusion Dither GrayscaleColor High Definition ColorTo Set the Scan Mode Select the scan mode that you wantVerify Image Before Scanning To Verify the ImageE P Scanning Scan Area Settings Position the pointer in the preview windowSelect the area you want to enlarge with the zoom function ZoomingTo Zoom Click the Zoom In button To return to normal view, click the Zoom Out buttonSpecify the Scan Area ScanningTo Initiate the Scan Saving Scanned Images To Save an ImageColor/High Definition Mode Grayscale ModeBlack & White Mode Diffusion DitherHow to Adjust Histograms Using the Histogram Feature to Adjust Image ContrastHow to Interpret Histograms E P To Adjust a Histogram Click the Histogram buttonClick the Auto button Click the OK buttonAdjusting the Image with Gamma Settings Setting the GammaGamma = GammaBrightness Brightness and Contrast SettingsContrast E P To Adjust the Brightness and Contrast Click the Gamma buttonAdjusting Gamma with the Menu CRT Type aCRT Type B CRT Type CE P To Change the Gamma Value Settings Click the radio button for Menu SettingSending Output to a Printer Gamma Value SettingsAdjusting the Gamma Value to Match the Display Slider Tone Curve Settings Manipulating the GraphE P To Edit the Tone Curve Auto Tone Correction ColorSync To Activate the ColorSync FunctionOpen the Image menu and select Descreen ProcedureDescreen To Set the Threshold Value Set the threshold value in the Control PanelSaving / Recalling Settings To Save Settings in a Settings FileE P To Recall a Settings File Editing Scanned Images Many special effects may be achieved with filtersScanning Techniques Matching Scan Resolution to PurposeOptical and Enhanced Resolutions System Requirements SpecificationsFunctional Specifications Clicked on the Plug-in Module CS-U control panel TroubleshootingProblem Scan button cannot be selected Error Messages Error MessageCause ResponseGlossary Resolution Image FilePreview ScannerIndex P E N D I C E S Canon Customer Care Center Mail support via Canon Computer Systems, IncOE-030AA 0799 CDS Canon Inc