Canon Pixma Mp630 User Guide

							Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Setting Threshold
Setting Threshold
The brightness of color and grayscale images is expressed in a value between 0 and 255. However, in
creating black and white images, all colors are mapped to either black (0) or white (255). Threshold is
the borderline value that determines a color as black or white. By adjusting the threshold level, you can
sharpen text in a document or reduce show-through in newspapers.
This function is available when Color Mode is Black and White.
In ScanGears Advanced Mode, click  (Threshold).
Adjusting Threshold
Move  (slider) to the right to increase the threshold value and thus increase the black areas. Move the
slider to the left to decrease the value and thus increase the white areas. You can also enter a value (0 to
255).
Note
Click Defaults to reset all adjustments in the current window.
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							Advanced Guide > Scanning > Scanning with Other Application Software > ScanGear (Scanner Driver) Screens
ScanGear (Scanner Driver) Screens
The following sections describe ScanGears screens and functions, and how to use ScanGear (scanner
driver).
Basic Mode Tab
Advanced Mode Tab
Input Settings
Output Settings
Image Settings
Color Adjustment Buttons
Auto Scan Mode Tab
Preferences Dialog Box
Scanner Tab
Preview Tab
Scan Tab
Color Settings Tab
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							Advanced Guide > Scanning > Scanning with Other Application Software > ScanGear (Scanner Driver) Screens >
Basic Mode Tab
Basic Mode Tab
This mode allows you to scan easily by following the on-screen steps.
This section describes the settings and functions available in Basic Mode.
The displayed items vary by document type and how the screen was opened.
(1) Settings and Operation Buttons
(2) Toolbar
(3) Preview Area
Settings and Operation Buttons
Select Source
Photo(Color)
Scan color photos.
Magazine(Color)
Scan color magazines.
Newspaper(Grayscale)
Scan text and line drawings in black and white.
Document(Grayscale)
Scan photos and documents in black and white.
Select this mode to create high-resolution black and white images.
Note
If you select an option other than Newspaper(Grayscale), the Unsharp Mask function will be
active.
If you select Photo(Color), Magazine(Color) or Document(Grayscale), the Auto Tone function will
be active. However, if you disable Always Execute the Auto Tone on the Color Settings tab of the
Preferences dialog box, the Auto Tone function will be disabled.
If you select Magazine(Color), the Descreen function will be active.
Display Preview Image
Click Preview to perform a trial scan. The scanned document appears in the Preview area. A
cropping frame (scan area) is displayed according to the document size.
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							Note
If you scan without preview, colors are adjusted based on the document type selected in Select
Source.
When using the machine for the first time, scanner calibration starts automatically. Wait a while
until the preview image appears.
Destination
Select what you want to do with the scanned image.
Print (300 dpi)
Select this to print the scanned image on a printer.
Image display (150 dpi)
Select this to view the scanned image on a monitor.
OCR (300 dpi)
Select this to use the scanned image with OCR software.
OCR software is software that converts text scanned as an image into text data that can be
edited in word processors and other programs.
Note
To scan at 301 dpi or higher, scan in Advanced Mode after setting the Output Resolution.
See Scanning in Advanced Mode to scan in Advanced Mode.
Output Size
Select an output size.
Output size options vary by the item selected in Destination.
Flexible
When a cropping frame is displayed, the portion within the cropping frame will be scanned at
100%. When no cropping frame is displayed, the entire Preview area will be scanned.
Paper Size (L, A4, etc.)
Select an output paper size. The portion within the cropping frame will be scanned at the size of
the selected paper size. You can drag the cropping frame to enlarge/reduce it while maintaining
the aspect ratio.
Monitor Size (1024 x 768 pixels, etc.)
Select an output size in pixels.
A cropping frame of the selected monitor size will be displayed and the portion within the
cropping frame will be scanned. You can drag the cropping frame to enlarge/reduce it while
maintaining the aspect ratio.
Add/Delete...
Open the Add/Delete the Output Size dialog box, in which you can save custom output sizes. You
can select this option when Destination is Print (300 dpi) or Image display (150 dpi).
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							In the Add/Delete the Output Size dialog box, you can specify multiple output sizes and save
them at one time. Saved items appear in the Output Size list along with the predefined items.
Add
To add a size, enter Output Size Name, Width and Height, then click Add. For Unit, you can
select mm or inches when Destination is Print (300 dpi) but you can only select pixels when
Destination is Image display (150 dpi). The name of the added size appears in Output Size List.
Click Save to save the items listed in Output Size List.
Delete
To delete an item, select it in Output Size List and click Delete. Click Save to save the items
listed in Output Size List.
Important
You cannot delete predefined output sizes such as A4 and 1024 x 768 pixels.
Note
Save up to 10 output sizes to Output Size List.
An error message appears when you enter a value outside the setting range. Enter a value
within the setting range.
Note
Whether or how the cropping frame is initially displayed on a preview image can be specified
on the Preview tab of the Preferences dialog box. See Cropping Frame on Previewed Images in
Preview Tab.
 Invert aspect ratio
This button is available when Output Size is set to anything but Flexible.
Click this button to rotate the cropping frame. Click again to return it to the original orientation.
Adjust cropping frames
You can adjust the scan area within the Preview area.
If an area is not specified, the document will be scanned at the document size (Auto Crop). If an area
is specified, only the portion in the cropping frame will be scanned.
Note
See Adjusting Cropping Frames
 for details on cropping frames.
Image corrections
Fading correction
Corrects and scans photos that have faded with time or have a colorcast.
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							Backlight correction
Corrects photos that have been shot against light.
Gutter shadow correction
Corrects shadows that appear between pages when scanning open booklets.
Important
For precautions on using this function, see Gutter Shadow Correction in Image Settings
 (Advanced Mode tab).
Color Pattern...
Allows you to adjust the images overall color. You can correct colors that have faded due to
colorcast, etc. and reproduce natural colors while previewing color changes.
Note
See Adjusting Colors Using a Color Pattern for details.
Perform Scan
Click Scan to start scanning.
Note
When scanning starts, the progress will be displayed. Click Cancel to cancel the scan.
Preferences...
The Preferences dialog box opens and you can make scan/preview settings.
See Preferences Dialog Box for details.
Close
Close ScanGear (scanner driver).
Toolbar
Toolbar
You can rotate preview images using the Toolbar.
 (Auto Crop)
Displays and adjusts the cropping frame automatically to the size of the document displayed in
the Preview area. The scan area is reduced every time you click this button if there are cropping
area within the cropping frame.
 (Remove Cropping Frame)
Removes the selected cropping frame.
 (Rotate Left)
Rotates the preview image 90 degrees counter-clockwise.
- The result will be reflected in the scanned image.
- The image returns to its original state when you preview again.
 (Rotate Right)
Rotates the preview image 90 degrees clockwise.
- The result will be reflected in the scanned image.
- The image returns to its original state when you preview again.
 (Information)
Displays the version of ScanGear (scanner driver) and the current settings.
 (Open Guide)
This page appears.
Preview Area
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							Preview Area
This is where a trial image is displayed after you click Preview.
You can specify the scan area (cropping frame) on the displayed image.
You can also create two or more cropping frames.
Note
See Adjusting Cropping Frames
 for details on cropping frames.
Related Topic
Scanning in Basic Mode
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							Advanced Guide > Scanning > Scanning with Other Application Software > ScanGear (Scanner Driver) Screens >
Advanced Mode Tab
Advanced Mode Tab
This mode allows you to make advanced scan settings such as the color mode, resolution, image
brightness and color tone.
This section describes the settings and functions available in Advanced Mode.
The displayed items vary by document type and how the screen was opened.
(1) Settings and Operation Buttons
(2) Toolbar
(3) Preview Area
Settings and Operation Buttons
Favorite Settings
You can name and save a group of settings (Input Settings, Output Settings, Image Settings and
Color Adjustment Buttons), and load it as required. It is convenient to save a group of settings if you
will be using it repeatedly. You can also use this to reload the default settings.
Select Add/Delete... from the pull-down menu and the Add/Delete Favorite Settings dialog box
opens.
Enter Setting Name and click Add. The name appears in Favorite Settings List.
When you click Save, the item appears in the Favorite Settings list along with the predefined items.
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							Important
You can set Add/Delete... in Favorite Settings after preview.
Note
Save up to 10 items to Favorite Settings List. To delete an item, select it in Favorite Settings List
and click Delete. Click Save to save settings displayed in Favorite Settings List.
Input Settings
Specify the input settings such as the document type and size.
Input Settings
Output Settings
Specify the output settings such as the output resolution and size.
Output Settings
Image Settings
Enable/disable various image correction functions.
Image Settings
Color Adjustment Buttons
These buttons can be used to make fine corrections to the image brightness and color tones. You
can adjust the images overall brightness or contrast, and adjust its highlight and shadow values
(histogram) or balance (tone curve).
Color Adjustment Buttons
Zoom
Rescans the portion within the cropping frame at higher magnification. When the image is zoomed
in, Zoom changes to Undo. Click Undo to return the display to its non-magnified state.
Note
Zoom rescans the image and displays high-resolution image in Preview.
 (Enlarge/Reduce) on the Toolbar zooms in on the preview image quickly. However, the
resolution of the displayed image will be low.
Preview
Perform a trial scan.
Scan
Start scanning.
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							Note
When scanning starts, the progress will be displayed. Click Cancel to cancel the scan.
When scanning is completed, a dialog box prompting you to select the next action may open.
Follow the prompt to complete. For details, see Status of ScanGear dialog after scanning in 
Scan Tab (Preferences dialog box).
If the total size of the images to be scanned exceeds 100 MB, a message appears warning you
that scanning may take time. Click OK to continue, or Cancel to cancel the scan.
Preferences...
The Preferences dialog box opens and you can make scan/preview settings.
See Preferences Dialog Box
 for details.
Close
Close ScanGear (scanner driver).
Toolbar
Toolbar
With the Advanced Mode Toolbar, you can make adjustments to the preview image and also select a
part of the displayed image.
 (Clear)
Click this button to delete the preview image.
It also resets the Toolbar and color adjustment settings.
 (Crop)
Allows you to specify the scan area by dragging the mouse.
 (Move Image)
If an enlarged image is too large to fit in the Preview area, you can click this button and drag the
image across the screen until the part you want to see is displayed. You can also move the
image using the scroll bars.
 (Enlarge/Reduce)
Click this button then click on the image to enlarge it (zoom in). Right-click on the image to
reduce it (zoom out).
 (Rotate Left)
Rotates the preview image 90 degrees counter-clockwise.
- The result will be reflected in the scanned image.
- The image returns to its original state when you preview again.
 (Rotate Right)
Rotates the preview image 90 degrees clockwise.
- The result will be reflected in the scanned image.
- The image returns to its original state when you preview again.
 (Information)
Displays the version of ScanGear (scanner driver) and the current settings.
 (Open Guide)
This page appears.
 (Auto Crop)
Displays and adjusts the cropping frame automatically to the size of the document displayed in
the Preview area. The scan area is reduced every time you click this button if there are cropping
area within the cropping frame.
 (Remove Cropping Frame)
Removes the selected cropping frame.
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