ImageSubtract
The Image Subtract tool subtracts the pixel information from two
images. For examples, if the RGB value for a pixel from the
first image is 10, 20, 30 and the RGB values for the
corresponding pixel on the second image has a value of 10, 10, 20,
then corresponding pixel on the the resulting image will have an RGB
value of 0, 10, 10.
Using the Image Subtract Tool
Drag any two CIF images onto the inputs page for the Image Subtract tool. These images could come from other tools, like the Image Pop and Push tools. When the tool is run the pixel information for the images will be subtracted.
In addition, there are two settings on the tool's parameters page.
Select Viewer Refresh to update the viewer window with the added image.
Absolute
when checked, will take the absolute value of the answer. When
unchecked the subtraction will never yield an answer below 0.