Canon Pixma Mp630 User Guide

							Below is an example of correcting a bluish image.
Since Blue and Green are too strong, click the Yellow and Magenta arrows to correct.
BeforeAfter
Note
Color adjustments are applied only to the scan area (cropping frame) specified in the Preview area.
You can also select a color tone from the color pattern displayed on the left of the Color Pattern
screen.
You can also use this function to add a specific tint to an image. Increase the magenta to add a
warm tint, and increase the blue to add a cool tint.
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Page 531 of 805 pages Adjusting Colors Using a Color Pattern
 
						

							Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Adjusting Saturation and Color Balance
Adjusting Saturation and Color Balance
In ScanGears Advanced Mode, click  (Saturation/Color Balance).
Saturation
Adjust the images saturation (vividness). You can brighten colors that have faded with time, etc.
Move  (slider) under Saturation to the left to reduce the saturation (darken the image), and to the right
to increase the saturation (brighten the image). You can also enter a value (-127 to 127).
Saturation decreasedOriginal imageSaturation increased
Note
The natural color tone of the original image may be lost if you increase saturation too much.
Color Balance
Adjust images that have a colorcast. Colorcast is a phenomenon where a specific color affects the entire
picture due to the weather or ambient strong colors.
Move  (slider) under each color pair to the left or right to emphasize the corresponding color.
Cyan & Red
Magenta & Green
Yellow & Blue
These are complementary color pairs (each pair produces a shade of gray when mixed). You can
reproduce the natural colors of the scene by reducing the cast color and increasing the complementary
color.
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							It is usually difficult to correct the image completely by adjusting only one color pair. It is recommended
that you find a portion in the image where it should be white, and adjust all three color pairs so that the
portion turns white.
You can also enter a value (-127 to 127).
Below is an example of an image in which the Cyan & Red pair has been adjusted.
Cyan is increasedRed is increased
Note
Click Defaults to reset all adjustments in the current window.
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Page 533 of 805 pages Adjusting Saturation and Color Balance
 
						

							Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Adjusting Brightness and Contrast
Adjusting Brightness and Contrast
In ScanGears Advanced Mode, click  (Brightness/Contrast).
Note
Click  to switch to detailed view. Click  to return to the previous view.
Channel
Each dot of an image is a mixture of Red, Green and Blue in various proportions (gradation). These
colors can be adjusted individually as a channel.
Master
Adjust the Red, Green and Blue combined.
Red
Adjust the Red channel.
Green
Adjust the Green channel.
Blue
Adjust the Blue channel.
Note
Only Grayscale will be displayed in Channel when Color Mode is Grayscale.
Brightness
Adjust the image brightness. Move  (slider) under Brightness to the left to darken and right to brighten
the image. You can also enter a value (-127 to 127).
Page 534 of 805 pages Adjusting Brightness and Contrast
 
						

							DarkenedOriginal imageBrightened
Note
Highlights may be lost if you brighten the image too much, and shadows may be lost if you darken
the image too much.
Contrast
Contrast is the degree of difference between the brighter and darker parts of an image. Increasing
contrast will increase the difference, thus sharpening the image. Decreasing contrast will decrease the
difference, thus softening the image.
Move  (slider) under Contrast to the left to decrease and right to increase the contrast of the image.
You can also enter a value (-127 to 127).
Decreased contrastOriginal imageIncreased contrast
Note
Increasing the contrast is effective in adding a three-dimensional feel to soft images. However,
shadows and highlights may be lost if you increase the contrast too much.
Note
Click Defaults to reset all adjustments in the current window.
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Page 535 of 805 pages Adjusting Brightness and Contrast
 
						

							Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Adjusting Histogram
Adjusting Histogram
In ScanGears Advanced Mode, click  (Histogram).
Channel
Each dot of an image is a mixture of Red, Green and Blue in various proportions (gradation). These
colors can be adjusted individually as a channel.
Master
Adjust the Red, Green and Blue combined.
Red
Adjust the Red channel.
Green
Adjust the Green channel.
Blue
Adjust the Blue channel.
Note
Only Grayscale will be displayed in Channel when Color Mode is Grayscale.
Reading Histograms
You can open Histogram of a specified area for each Channel. The higher the Histogram peak, the more
data is distributed to that level.
(1) Bright area(2) Dark area(3) Whole image
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							More data is distributed to the
highlight side.
More data is distributed to the
shadow side.
Data is widely distributed between the
highlight and shadow.
Adjusting Histograms (Using the Slider)
Select a Channel, then move  (Black-point Slider) or  (White-point Slider) to specify the level to be
set as the shadow or highlight.
- All parts to the left of  (Black-point Slider) will be black (level 0).
- The parts at  (Mid-point Slider) will turn to the color exactly between the black-point and white-point.
- All parts to the right of  (White-point Slider) will turn white (level 255).
Auto Tone is set to ON by default. Adjustments shown below are automatically performed.
Moving the Black-point and White-point Sliders
Move the Black-point Slider or White-point Slider to adjust brightness.
Images with more data distributed to the highlight side
Move the Black-point Slider toward the highlight side.
Images with more data distributed to the shadow side
Move the White-point Slider toward the shadow side.
Images with widely distributed data
Move the Black-point Slider toward the highlight side, and White-point Slider toward the shadow side.
Moving the Mid-point Slider
Move the Mid-point Slider to specify the level to be set as the middle of the tonal range.
Images with more data distributed to the highlight side
Page 537 of 805 pages Adjusting Histogram
 
						

							Move the Mid-point Slider toward the highlight side.
Images with more data distributed to the shadow side
Move the Mid-point Slider toward the shadow side.
Adjusting Histograms (Using the Droppers)
When you select a Channel and click the Black-point, Mid-point or White-point Dropper, the mouse
pointer on the preview image changes to a dropper. Click a Dropper displayed below the histogram to
change the setting.
- The point clicked with  (Black-point Dropper) will be the darkest point. You can also enter a value (0
to 245).
- The point clicked with  (Mid-point Dropper) will be the middle of the tonal range. You can also enter
a value (5 to 250).
- The point clicked with  (White-point Dropper) will be the brightest point. You can also enter a value
(10 to 255).
- Click  for Gray Balance and click the area you want to adjust the color in the preview image.
The clicked point will be set as the achromatic color reference, and the rest of the image is adjusted
accordingly. For instance, if snow in a photo appears bluish, click the bluish part to adjust the whole
image and reproduce natural colors.
Note
Click Defaults to reset all adjustments in the current window.
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Page 538 of 805 pages Adjusting Histogram
 
						

							Advanced Guide > Scanning > Scanning with Other Application Software > Correcting Images and Adjusting Colors with
ScanGear (Scanner Driver) > Adjusting Tone Curve
Adjusting Tone Curve
In ScanGears Advanced Mode, click  (Tone Curve Settings).
Channel
Each dot of an image is a mixture of Red, Green and Blue in various proportions (gradation). These
colors can be adjusted individually as a channel.
Master
Adjust the Red, Green and Blue combined.
Red
Adjust the Red channel.
Green
Adjust the Green channel.
Blue
Adjust the Blue channel.
Note
Only Grayscale will be displayed in Channel when Color Mode is Grayscale.
Reading Tone Curves
With ScanGear (scanner driver), scanning images via a scanner is the input, and displaying to a monitor
is the output. Tone Curve shows the balance of tone input and output for each Channel.
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							Adjusting Tone Curve
In Select Tone Curve, select a tone curve from No correction, Overexposure, Underexposure, High
contrast, Reverse the negative/positive image and Edit custom curve.
No correction (No adjustment)
Overexposure (Convex curve)
The midtone data of the input side is stretched toward the highlight of the output side, resulting in a
bright-toned image when viewed on a monitor.
Underexposure (Convex curve)
The midtone data of the input side is stretched toward the shadow of the output side, resulting in a dark-
toned image when viewed on a monitor.
High contrast (S curve)
The highlight and shadow of the input side are enhanced, resulting in a high-contrast image.
Reverse the negative/positive image (Downward-sloping line)
The input and output sides are reversed, resulting in a negative-positive inverted image.
Edit custom curve
You can drag specific points on the Tone Curve to freely adjust the brightness of the corresponding
areas.
Note
Click Defaults to reset all adjustments in the current window.
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Page 540 of 805 pages Adjusting Tone Curve