User Guide

Chapter 5: Painting And Image Editing
Hard Light Lightens or darkens pixels in Source 2 depending on the brightness
value of the corresponding pixels in Source 1. Hard Light works similarly
to Soft Light. However, black in Source 1 produces black in the resulting
channel and white produces white.
Darken Replaces pixels in Source 2 with the corresponding pixels in Source 1, if
the pixels in Source 1 are darker.
Lighten Replaces pixels in Source 2 with the corresponding pixels in Source 1, if
the pixels in Source 1 are lighter.
Add Creates a lighter channel than the source channels. Add is similar to
Screen but usually produces a higher-contrast image.
If you select the Add option, you can enter a Scale value from 1 to 2 with
a precision of three decimal places. To calculate the average brightness
value of two channels, choose Add and enter a Scale of 2.
You can brighten or darken the resulting channel by specifying an Offset
value. To lighten the overall image, enter an offset from 1 to 255. To
darken the image, enter an offset from -1 to -255.
Subtract Creates a darker channel than the source channels. Subtract is similar to
Multiply. However, corresponding pixels of the same color produce black
in the resulting channel.
If you select the Subtract option, you can enter a Scale value from 1 to 2
with a precision of three decimal places.
You can brighten or darken the resulting channel by specifying an Offset
value. To lighten the overall image, enter an offset from 1 to 255. To
darken the image, enter an offset from -1 to -255.
Difference Compares the color value of each pixel in Source 1 with the
corresponding pixel in Source 2, subtracts the darker value from the
lighter, and then uses this difference in the resulting channel.
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