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1
Choose the
channel
• Select
Master
to modify the histogram in the red, green, and blue color channels
simultaneously.
• Select
color channels
channel.
• For grayscale scanners, only the
2
Move the black, gray, and white
respectively. The values in the input edit boxes will change accordingly.
• To make the image darker, move in the
• To make the image lighter, move in the
• To change the midtones, move in the
image becomes darker. If the midtone value is greater than 1, the image becomes lighter.
For more details, see additional information in previous page
3
Click on the
Display
• Select
Original
to see the histogram before changes were made to the image.
• Select
Enhanced
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, see the section The Action Buttons in the AIE Dialog Box.
How to use the Shadows and Highlights tool
in which the histogram will be modified.
individually (red, green, blue) to modify the histogram in that particular
gray
triangles
box to view histograms of the original image and the resulting (Enhanced) image.
to see the histogram after changes were made to the image.
channel is available.
to change shadows, midtones, and highlights,
black
triangle to the right.
white
triangle to the left.
gray
triangle. If the midtone value is less than 1, the
.
4
3
1
2
Reference
61
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