Imagej processed using the FFT bandpass filter on a full sized source file. Using such a large file required me to set the memory size to 7000MB, 1000MB less than my physical RAM. The highest value less than that that I tried was 4000, and it complained about running out of memory.br/br/In addition to being a memory hog and taking a long time to process, the results are not very good. It's fooled by other features that align along the bands. See the lips, for example.