Click on the OK button, Shadow Mark | Canon 4.1 specs

S T E P 3

The histogram settings can be adjusted for all channels (Master) or for individual channels (R, G, B). The selectors are displayed to the left of the histogram graph (Master, R, G, B). The Master selection is unavailable if Grayscale has been selected as the scan mode.

Shadow Mark

Clicking directly on this bar causes the shadow or highlight

mark, whichever is closest, to advance to that position.

All of the data to the

left of this mark is set

Highlight Mark

to the shadow (0)

All of the data to the

value. Drag the mark

to the right or left.

right of this mark is set

to the highlight (255)

Displays the current

value. Drag the mark

to the right or left.

level at the shadow

mark. Click the up or

Displays the current

down arrows in the

spinbox to increase or

level at the highlight

decrease the setting or

mark. Click the up or

enter a number directly

down arrows in the

into the entry box

spinbox to increase or

(0~245).

decrease the setting or

enter a number directly

To restore the histogram

into the entry box

settings, click this

(10~255).

[Reset] button.

The Tone Adjustment

To restore all settings

settings can be saved

to their defaults, click

in a file and reloaded

the [All Reset] button.

for later use.

Black Eyedropper Button

White Eyedropper Button

Auto Button

Click the Black Eyedropper

Automatically sets

Click the White Eyedropper

and click the position in the

the highlight and

and click the position in the

preview image you want to

shadow settings for

preview image you want to

set to black (0).

optimum effects.

set to white (255).

Click on the [OK] button.

The preview image will change according to the values specified with the histogram.

Hint

•The histogram dialog can also be displayed by selecting [Tone Adjustment] from the [Image] menu.

43

Image 43

Canon 4.1 manual Click on the OK button, Shadow Mark

Contents

Users Guide When you open the box How to Make Best Use of the Manuals Where to Look How to Use this GuideAbout the Conventions Used in this Guide Table of Contents Adjusting Scanned Images Operating Environment Installing Plug-in Module CS-U Pp -20Image Size Control Panel Features E P Scanning Procedures Plug-in Module CS-U Special Features Position materials for scanning and preview them. p Install Plug-in Module CS-UQuick Start Instructions Start Plug-in Module CS-U p Mouse pointer over the image 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 Save the image with Adobe Photoshop LE or other plug-in Scan the ImageSave the Scanned Image Click on the Scan button E P RGB Values Displaying the Plug-in Module CS-U Control Panel Operating Procedures Positioning Originals ProceduresPlace the original on the scanners document glass Click on the Preview button Previewing Selecting the Output Device Output Device Resolution= 720 dpi, Magnification= 100% Setting the Resolution and Magnification Set the desired magnification factor on the control panel To Set the Magnification Factor Setting the Scan Mode Select a scan mode from the pop-up menu Click the arrow beside Scan Mode To Verify the Image Verifying the Image before Scanning Use these buttons to rotate the image Rotating the Image Output Device Setting PreferencesAspect Ratio Preview Window Unit Platen/Film Reset Default SettingsShut off lamp time Close Plug-in After Scan Operating Procedures Scanning Position the pointer in the preview window Setting the Scan Area Zooming Procedures to ZoomSelect the area you want to enlarge with the zoom function Click on the Zoom In button Click close box to guit the Plug-in Module CS-U ScanningTo Initiate the Scan Specify the Scan Area Enter a name for the file and click the Save button Saving Scanned Images Scanning Film Save Exposure Data Auto Exposure 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 Dialog Tone Adjustment How to Interpret Histograms Histogram Settings How to Adjust Histograms To Adjust a Histogram Shadow Mark Click on the OK button Manipulating the Graph Tone Curve Settings Click the OK button To Edit the Tone Curve Gamma Value = Relationship Between the Tone Curve Image Brightness Contrast Brightness and Contrast SettingsBrightness To Adjust the Brightness and Contrast Operating Procedure Adjusting the Color Balance Matching the Gamma Value to the Display Characteristics Gamma Value SettingsGamma value To Change the Gamma Value Settings To Set the Threshold Value Adjusting the Threshold Value ColorSync Auto Tone CorrectionTo Set the Auto Tone Correction Recommended Open the Image menu and select Unsharp Mask Unsharp Mask Open the Image menu and select Descreen Descreen Select High-speed Scan Mode from the Image menu High-speed Scan Mode To Save Settings in a Settings File Saving/Recalling SettingsClick the Save button To Recall a Settings File Scanning Techniques Matching Scan Resolution to Purpose Appendices 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 Dot Color Image File Optical ResolutionGrayscale Histogram Preview Area ResolutionPixel Plug-in Software Tone Curve Scan ModeShadows Threshold Value Output device 7, 11, 18, 25 Index Scan 12, 33 Scan area 11 Canon U.S.A., INC Canon Customer Support Help Desk