Graphics Programs Reference
In-Depth Information
The Difference Key node
The Difference Key node creates a mask based on the difference between the inputs
plugged to the
Image 1
and
Image 2
sockets.
Tolerance
and
Falloff
can be adjus-
ted to fine-tune the created mask. The following screenshot shows an example using
the
Difference Key
node to modify the flower tone:
The Distance Key node
The
Distance Key
node works similar to the Difference Key node but with a different
algorithm.
Tolerance
and
Falloff
can be adjusted to fine-tune the created mask.
The Luminance Key node
The Luminance Key node creates a mask based on luminance of the input plugged
to the
Image
socket, controlled by
Low
and
High
handles. This node works as per
the YUVA color space. The following screenshot shows an example using the
Lu-
minance Key
node to modify the flower tone:
