Canon 4.1 manual Tone Adjustment Dialog

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S T E P 3

Tone Adjustment

Use Tone Adjustment to enhance the brightness or color of the image in the preview area. Open the [Image] menu and select [Tone Adjustment], or click the [Tone Adjustment] button, to open the Tone Adjustment dialog so you can enhance the preview image.

You can also click the [Auto Tone Adjustment] button so the histogram highlights and shadows are adjusted for you automatically to the optimum settings.

Caution

• Adjustments cannot be made when the ColorSync option is selected (p. 49).

Image Menu

Displays the RGB values at the current cursor position. Pre-adjusted value/ post-adjusted value

Auto Tone

Adjustment

Button

Tone Adjustment

Button

Tone Adjustment Dialog

The Tone Adjustment dialog contains tabs for the following features: histogram, tone curve, brightness/contrast, color balance, and gamma. If black and white has been selected as the scan mode, the threshold feature also becomes available on the histogram tab.

The settings selected in the Tone Adjustment dialog are also reflected in the next preview image. To scan a new item, ensure that you click the [All Reset] button to restore all of the settings to their default values.

Click the appropriate tab.

Here is the Tone Adjustment dialog with all the tabs you will see when color or grayscale has been selected as the scan mode.

Here is the Tone Adjustment dialog you will see when black and white is selected as the scan mode. Only one tab is available.

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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 Pp -20Image SizeScanning Procedures E PPlug-in Module CS-U Special Features Install Plug-in Module CS-U Quick Start InstructionsStart Plug-in Module CS-U p Position materials for scanning and preview them. pVerify Image Quality with the Browser Function before Specify the Area of the Image to be ScannedSelect the area to be scanned by clicking and dragging Mouse pointer over the imageScan the Image Save the Scanned ImageClick on the Scan button Save the image with Adobe Photoshop LE or other plug-inE 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 Click 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 WindowReset Default Settings Shut off lamp timeClose Plug-in After Scan Platen/FilmOperating 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 close box to guit the Plug-in Module CS-USaving Scanned Images Enter a name for the file and click the Save buttonScanning Film Auto Exposure Save Exposure Data Click on the Scan button Remove Dust and Scratches CanoScan D2400U only Black & White Bit/14/16bit Grayscale and 24-bit/42/48bit ColorBit Color 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 Gamma 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 CorrectionRecommended ColorSyncUnsharp Mask Open the Image menu and select Unsharp MaskDescreen Open the Image menu and select DescreenHigh-speed Scan Mode Select High-speed Scan Mode from the Image menuTo Save Settings in a Settings File Saving/Recalling SettingsClick the Save button To Recall a Settings File Matching Scan Resolution to Purpose Scanning TechniquesAppendices Troubleshooting Problem Scan button cannot be selected Problem Scanning is taking a long time Problem Scanning quality is poor Error Message Cause Error MessagesResponse Glossary Color DotOptical Resolution GrayscaleHistogram Image FileResolution PixelPlug-in Software Preview AreaScan Mode ShadowsThreshold Value Tone CurveIndex Output device 7, 11, 18, 25Scan 12, 33 Scan area 11 Canon Customer Support Help Desk Canon U.S.A., INC