That's very cool. LIBCVD does something similar in that updates are only made to the histogram for pixels that enter or leave the structuring element as it's shifted across the image. Any plans to replace erode and dilate with rank.minimum and rank.maximum? Damian On Wed, Nov 14, 2012 at 10:41 PM, Stéfan van der Walt <stefan@sun.ac.za>wrote:
Hi everyone,
We just merged an exciting new rank filtering module, implemented by Olivier Debeir and guided through review by Johannes Schönberger. These filters work on the principle that, as a sliding window moves over an image, its histogram can be efficiently updated by considering only new values introduced (and left behind) by the moving footprint.
Here are some examples from the gallery:
http://scikit-image.org/docs/dev/auto_examples/applications/plot_rank_filter...
Enjoy!
Stéfan
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-- Damian Eads, PhD Research Associate, Machine Intelligence Laboratory Engineering Department, University of Cambridge Trumpington Street, Cambridge, CB2 1PZ, ENGLAND Web: http://mi.eng.cam.ac.uk/~dre25