hola,
from the CHANGES.LOG :
0.12.15 ( codename Technologia Del Sur ) added morphology patches : patches/morphology : opening, closing, thinning, thickening, skeletization added morphology operator : distance transform ( inspired by Paul Rosin, 91, http://www.cs.cf.ac.uk/User/Paul.Rosin/resources/sdt/ ) added morphology operators : erosion ( pdp_erode ), dilation ( pdp_dilate ), hit and miss ( pdp_hitandmiss ) added pdp_binary : transform an image to a binary image ( using yuv settings, a filter for morphology ) ( for all the theory on morphology, thanx to the excellent site : http://homepages.inf.ed.ac.uk/rbf/HIPR2 ) added pdp_disintegration : a new effect based on piksels summing and averaging
enjoy!
sevy