Hey Mick, I'm copying the list as you might get interesting responses...
> in fact I am looking for a contour transform in PD. I come from Matlab image > processing and I am confortable with the Image Processing form of approaching > images, > treating them like matrices, and applying Hit Or Miss transforms (are you > familiar with this? and Mathematical Morphology?). Contour objects are not readily available in GEM as far as I can recall, but I am not an expert. A generic object to apply small matrices might be a useful thing to have though... > how do you threshold a grey level image? check out pix_threshold > not to make it too long, how do you find contours of a binary image? > and is there some way to run a kernel (little matrix, i.e. 3by3) on an image, > apply some processing inside this kernel (i.e. calculate the minimum and set > its value in the center pixel) to transform the whole image? you can check out the code for pix_mano.cpp in the extra folder of GEM. I think this is the best way to analyze the contour of an image. It sounds like pix_mano, or parts of its code, may already be doing what you are looking for? best, J *************** Jaime Oliver www.jaimeoliver.pe [email protected] Columbia University On Jun 15, 2012, at 7:09 PM, mick mengucci wrote: > Hi > excuse me if I write you > I saw your email at the bottom of an interesting patch called [pix_mano] > > in fact I am looking for a contour transform in PD. I come from Matlab image > processing and I am confortable with the Image Processing form of approaching > images, > treating them like matrices, and applying Hit Or Miss transforms (are you > familiar with this? and Mathematical Morphology?). > > not to make it too long, how do you find contours of a binary image? how do > you threshold a grey level image? > and is there some way to run a kernel (little matrix, i.e. 3by3) on an image, > apply some processing inside this kernel (i.e. calculate the minimum and set > its value in the center pixel) to transform the whole image? > > well, I appreciate your attention in reading this > then whatever you can do is ok > > cheers > Mick Mengucci > > > -- > WWW.MISTURAPURA.NET > pure mixture vibration since 1995 > www.myspace.com/mickmengucci > >
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