How To Use The Shadows And Highlights Tool - Microtek ScanMaker IIG User Manual

How to use the Shadows and Highlights tool

1 Choose the channel in which the
histogram will be modified.
• Select Master to modify the
histogram in the red, green, and
blue color channels
simultaneously.
• Select color channels
individually (red, green, blue) to
modify the histogram in that
particular channel.
• For grayscale scanners, only
the gray channel is available.
2 Move the black, gray, and white
triangles to change shadows,
midtones, and highlights,
respectively. The values in the
input edit boxes will change
accordingly.
• To make the image darker,
move in the black triangle to the
right.
• To make the image lighter,
move in the white triangle to the
left.
• To change the midtones, move
the gray triangle. If the midtone
value is less than 1, the image
becomes darker. If the midtone
value is greater than 1, the
image becomes lighter.
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Click on the Display box to
view histograms of the original
image and the resulting
(Enhanced) image.
• Select Original to see the
histogram before changes
were made to the image.
• Select Enhanced to see the
histogram after changes
were made to the image.
4 Click on an action button.
• Click OK to accept changes
and exit the AIE dialog box.
• Click Cancel to abandon all
changes and exit the AIE
dialog box.
• Click Reset to restore
settings to original default
values.
• Click Revert to cancel the
effect of the current image-
enhancement tool.
For more details here, see the
section The Action Buttons.
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