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Canon printer PIXMA MG3620 User Manual

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    							Adjusting Saturation and Color BalanceYou can brighten colors that have faded with time or due to colorcast by using 
     (Saturation/Color
    Balance) in ScanGear (scanner driver)'s  Advanced Mode tab.
    Note
    
    						
    							Move  (Slider) under Color Balance  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.
    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
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    							Adjusting Brightness and ContrastYou can adjust images that are too dark or bright, or too flat due to lack of contrast by using 
    (Brightness/Contrast) in ScanGear (scanner driver)'s  Advanced Mode tab.
    Note
    
    						
    							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).
    DarkenedOriginal imageBrightened
    Note
    
    						
    							Adjusting HistogramYou can adjust the image color tone by using a graph (histogram) showing brightness distribution, via 
    (Histogram) in ScanGear (scanner driver)'s  Advanced Mode tab.
    Note
    
    						
    							(1) Bright area(2) Dark area(3) Whole imageMore data is distributed to thehighlight side.More data is distributed to the shadow side.Data is widely distributed between thehighlight 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.
    
    						
    							Moving the Mid-point SliderMove 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
    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.
    
    						
    							Adjusting Tone CurveYou can adjust the brightness of an image by selecting the type of graph (tone curve) showing the balance
    of tone input and output, via 
     (Tone Curve Settings) in ScanGear (scanner driver)'s  Advanced Mode
    tab.
    Note
    
    						
    							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 (Concave 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.
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