Canon Canoscan Lide220 Quick Start Guide

							 (Histogram)
A histogram allows you to see the data concentration at each brightness level of an image. You can specify the brightest level (highlight) and darkest level (shadow) within an image, cut the levels and expand the middle of the tonal range of the image.
Adjusting Histogram
 (Tone Curve Settings)
Adjust the brightness of an image by selecting the type of graph (tone curve) showing the balance of
tone input and output. You can make fine adjustments to the brightness of a specific area.
Adjusting Tone Curve
 (Final Review)
Make a final check of color adjustments. The final synthesized tone curve and the histogram derived
from the subsequent image processing will be displayed. There are no settings to make in this screen.
•
For a color image, select a color in  Channel to check either  Red, Green , or Blue , or select  Master
to check three colors together.
•
If you place the cursor on the preview image, the portion will be enlarged and its RGB values (only L when  Color Mode  is Grayscale ) before and after the adjustments will be displayed.
 (Threshold)
Set the boundary (threshold) at which black and white are divided. By adjusting the threshold level, you
can sharpen text in a document or reduce show-through in newspapers.
Setting Threshold
Custom You can name and save a set of tone curve and threshold settings of the Color Adjustment Buttons.
Select  Add/Delete...  from the pull-down menu; when  Color Mode is set to anything but  Black and
White , the Add/Delete Tone Curve Settings  dialog box opens; when Color Mode is Black and
White , the Add/Delete Threshold Settings  dialog box opens.
181
 
						

							Enter Setting Name  and click Add; the name appears in  Tone Curve Settings List  or Threshold
Settings List . Click Save to save.
To delete an item, select it in  Tone Curve Settings List or Threshold Settings List  and click Delete.
Click  Save to save the settings displayed in  Tone Curve Settings List or Threshold Settings List .
You can load and apply the saved tone curve/threshold settings to a preview image. To load the settings, select the saved item from the pull-down menu.
Note
•
Save up to 20 items.
Defaults Reset all adjustments (saturation/color balance, brightness/contrast, histogram, and tone curve).
182
 
						

							Preferences Dialog BoxIn the  Preferences  dialog box, you can make advanced settings to ScanGear (scanner driver) functions via
the  Scanner , Preview , Scan , and  Color Settings  tabs.
Click  Preferences...  in the ScanGear screen to open the  Preferences dialog box.
Scanner Tab
Allows you to set the quiet mode, specify the folder in which to save images temporarily, and set the
music file to play during or at the end of a scan.
Preview Tab
Allows you to select what to do with Preview when ScanGear is started, how to display cropping frames
after previewing images, and the cropping size for thumbnails of scanned documents.
Scan Tab
Allows you to select what to do with ScanGear after scanning and set the  Color Mode (48 bit output)
option for  Advanced Mode  tab.
Color Settings Tab
Allows you to select how to adjust color, and specify the monitor gamma value.
183
 
						

							Scanner TabOn the  Scanner  tab, you can specify the following settings.
Select Folder Where Temporary Files are Saved
Displays the folder in which to save images temporarily. To change the folder, click  Browse... to specify
another one.
Sound Settings You can set the machine to play music during/at the end of a scan.
Select the  Play Music During Scanning  or Play Sound When Scanning is Completed  checkbox,
then click  Browse... and specify a sound file.
You can specify the following files.
•
MIDI file (*.mid, *.rmi, *.midi)
•
Audio file (*.wav, *.aif, *.aiff)
•
MP3 file (*.mp3)
Calibration Settings Platen CalibrationWhen you click  Execute, calibration starts and the scanner will be adjusted to reproduce correct
color tones in scanned images. Perform calibration when the color tones in the preview image are
significantly different from the original item or when colors appear in white areas.
Execute at Every Scan When you set to  ON, the scanner will be calibrated every time before previewing and scanning, to
reproduce correct color tones in scanned images.
Note
•
Even when  Execute at Every Scan  is set to OFF, the scanner may be calibrated
automatically in some cases (such as immediately after you turn the machine on).
Note
•
Calibration may take time depending on your computer.
184
 
						

							Test Scanner...Opens the  Scanner Diagnostics  dialog box from which you can run the scanner performance test.
Click  Start to start the diagnostics.
185
 
						

							Preview TabOn the  Preview  tab, you can specify the following settings.
Preview at Start of ScanGear
Select what to do with Preview when ScanGear (scanner driver) is started.
Automatically Execute Preview ScanGear will automatically start previewing at startup.
Display Saved Preview Image The previously previewed image will be displayed.
The Color Adjustment Button settings, the Toolbar settings, and the  Advanced Mode tab settings
are also saved.
None No preview image will be displayed at startup.
Note
•
Select  None if you do not want to save the preview image.
Cropping Frame on Previewed Images Select how to display cropping frames after previewing images.
Execute Auto Cropping on Previewed Images The cropping frame (scan area) will automatically be displayed in the document size afterpreviewing.
Display the Last Frame on Previewed Images A cropping frame of the same size as the last used cropping frame will be displayed after
previewing.
None No cropping frame will be displayed after previewing.
Cropping Size for Thumbnail View Select the cropping size for thumbnails of scanned documents.
186
 
						

							LargerDisplays 105 % (in width and height) of the area displayed for the standard size.
Standard The standard size.
Smaller Displays 95 % (in width and height) of the area displayed for the standard size.
Note
•
When you change the  Cropping Size for Thumbnail View  setting, the preview images will be
refreshed and cropped to the new size. As the preview images are refreshed, the color
adjustments and other settings applied to them are reset.
187
 
						

							Scan TabOn the  Scan tab, you can specify the following settings.
Status of ScanGear dialog after scanning
Select what to do with ScanGear (scanner driver) after scanning images.
Close ScanGear automatically Select this to return to the original application when scanning is completed.
Do not close ScanGear automatically Select this to return to the ScanGear screen for another scan when scanning is completed.
Display the dialog to select next action Select this to open a screen and select what to do when scanning is completed.
Note
•
Even if  Do not close ScanGear automatically  or Display the dialog to select next action  is set,
some applications may not support it.
Advanced Mode Settings Enable 48/16 bit OutputSelect this checkbox to display  Color(48bit) in Color Mode  on the Advanced Mode  tab.
Important
•
Some applications cannot receive images scanned in  Color(48bit) or may close when such
images are received.
188
 
						

							Note•
When Color(48bit)  is selected for  Color Mode, deselecting this checkbox changes
Color(48bit)  to Color .
•
When using a model supporting 16 bit output,  Grayscale(16bit) appears in Color Mode .
189
 
						

							Color Settings TabOn the  Color Settings  tab, you can specify the following settings.
Color Adjustment
Select one of the following.
Recommended Select this to vividly reproduce the tone of a document on the screen. It is recommended that you
normally select this setting.
Color Matching Select this to automatically match the scanner, monitor, and color printer colors, thus reducing time andtrouble to manually match the monitor and printer colors.
Source(Scanner) Select scanner profile.
Target Select target profile.
Monitor Select this checkbox to display preview image with optimum correction for monitor.
Defaults Returns to the default  Color Matching settings.
Note
•
The Color Adjustment Buttons on the  Advanced Mode tab are not available when you select
Color Matching .
•
This function is available when  Color Mode is Color  or Color(48bit) .
None Select this to disable color correction provided by ScanGear (scanner driver).
Note
•
You can select one when  Color Mode is Color , Color(48bit) , or Grayscale .
190