Canon scanner CanoScan D1250U2F User Manual

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Glossary Contents
Index
Quick Preview
Click this check box to switch the function on and off.
When this function is off, calibration is performed with every preview scan.
When this function is on, calibration is not performed with every preview
scan. The gained calibration data of former scanning will be taken and i\
t
will take shorter time to perform preview scan.
Energy Saving Mode
Click this check box to put the scanner in the energy saving mode. If th\
e
scanner...

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Glossary Contents
IndexThe Tone Sheet
When you click on the Tone tab, the Tone sheet opens.
The Tone sheet is displayed only when Color or Grayscale has been selected
for Color Mode on the Advanced Mode Main sheet and when Canon
ColorGear Color Matching is not selected on the Settings sheet.
•Changing the Color Mode selection or clicking the Clear button
r estores the default settings on the Tone sheet.
•T one sheet adjustment is conducted with the Preview Area.
•...

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IndexT
one Sheet Buttons
 Auto Tone Button
The Auto Tone button turns the automatic tone correction feature on.
Automatic tone correction automatically adjusts the image tone within the
cropped area to produce a better image. This button and the Auto tone in
the Simple Mode sheet have the same feature.
  Contrast/Brightness Button
Opens the Contrast/Brightness sheet and allows you to adjust the
brightness and contrast of the entire image.
  Gamma...

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Glossary Contents
IndexCommon Buttons
The Tone sheet settings are commonly set with the Load, Save, Reset and
All Reset buttons described below.
 Load Button
When the Color Mode is set to Color, a user-saved file (*.adc) is opened
and used for color adjustment.
When the Color Mode is set to Grayscale, user-defined file (*.adg) is
opened and used to adjusting gray tones.
  Save Button
When the Color Mode is set to Color, the user-defined settings are saved to
a file...

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Glossary Contents
IndexContrast/Brightness Sheet
  When the Contrast/Brightness button is clicked, the Contrast/
Brightness sheet is displayed.
The shape of the tone curve changes to reflect the current Contrast/
Brightness setting for the current Channel, and the image in the Preview
Area changes to reflect the adjustment.
Channel
If you want to select one of the primary colors (RGB) to adjust the co\
ntrast
or brightness, click the Channel down-arrow and select a...

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Glossary Contents
IndexGamma Sheet
  When the Gamma button is clicked, the Gamma sheet is displayed.
Gamma refers to a process where mid-tones are shifted so that the lighter
colors are lightened and darker colors are darkened. For example, let us say
you scanned a photograph of a subject in a boat in a tree-lined lake and
the shadows of the trees are dark enough and the white of the boat is light
enough, but the blue in the sky, the blue of the water, and the blue of...

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Glossary Contents
Index
Gamma (Scanner Gamma)
Drag the Gamma slider to the left or right to set the scanner gamma valu\
e
or type the value directly into the boxes. Entering a value into either the
scanner gamma box or the monitor gamma box will display a respective
value in the other box. The allowed range of values is 0.10 to 10.00
inclusive.  The shape of the tone curve changes to reflect the current
gamma setting for the current Channel, and the image in the...

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Glossary Contents
IndexHistogram Sheet
  When the Histogram button is clicked, the Histogram sheet is
displayed.
Use the histogram to enhance an image when the image is either too light\
or too dark, like an overexposed or underexposed photograph.  Increasing
the darker tones with the histogram improves the contrast of the image.
Channel
If you want to select one of the primary colors (RGB) to adjust the
histogram, click the Channel down-arrow and select a color, or...

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Index
Eyedroppers (Black-point, Mid-point, White-point)
Click one of the three eyedroppers then click the portion of the image in
the Preview Area that you want to sample, or enter values in the text boxes,
or drag one of the three triangles at the bottom of the graph to adjust the
value. The shape of the tone curve and histogram changes to reflect the
current Histogram setting for the current Channel, and the image in the
Preview Area changes to...

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Glossary Contents
IndexSpecial Tone Curves Sheet
  When the Special Tone Curves button is clicked, the Special Tone
Curves sheet is displayed.
Channel
Click the down-arrow and select one of the primary colors (RGB) for
adjustment or leave the setting at Master to adjust all the colors.
Select Special Curve
Click the down-arrow and select a setting from the drop-down list. These
settings are designed to solve some of the most common problems with
scanned images:...