SubtractImageSubtract

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.