Dear ferreters, I would like to apply a filter on a SeaWIFS image using ferret. The use of transormations (i.e., @SBN, @SBX, etc.) does not provide me good results because I have some points with very high values (those I want to smooth) comparatively to adjacent points. I wondered if the CONVOLVE function would be applicable here. If not, is there a way to perform it? Thanks in advance, Vincent