subtracting average

Posted by chris elliott on Jan 30, 2009; 10:54am
URL: http://imagej.273.s1.nabble.com/subtracting-average-tp3693882.html

Hi, I have an avi which i can read withimageJ, but I wanted to calculate
the average intensity at each corresponding pixel, and then subtract
this from each frame. Is there an existing plugin/macro etc to do this?

thanks
chris