I have tried it for some medical images which are a bit larger than standard computer vision images and then the processing takes significantly longer time and on the other hand, setting larger step may skip the boundary. Have you consider and you think that it could be easier extendable to run in on superpixels (which usually preserve the edges), similar as we did DOI: 10.1117/1.JEI.26.6.061611?
I have tried it for some medical images which are a bit larger than standard computer vision images and then the processing takes significantly longer time and on the other hand, setting larger step may skip the boundary. Have you consider and you think that it could be easier extendable to run in on superpixels (which usually preserve the edges), similar as we did DOI: 10.1117/1.JEI.26.6.061611?