dilation and erosion code
in [Matlab]
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From: snehal d on 1 Apr 2010 14:05 I need code for dilation and erosion , i don't want to use function imdilate() and imerode() so plz send me both the codes...
From: ImageAnalyst on 1 Apr 2010 16:52 On Apr 1, 2:05 pm, "snehal d" <shruti8...(a)gmail.com> wrote: > I need code for dilation and erosion , i don't want to use function imdilate() and imerode() so plz send me both the codes... --------------------------------------------------------------------------------------------------- Dilation is simply the local maximum, and erosion is simply the local minimum. You can program this up yourself with the blockproc(), min(), and max() functions. Good luck.
From: snehal d on 4 Apr 2010 14:36 ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <997a18e1-9083-48f8-b44a-72fb38fb6ff6(a)v20g2000yqv.googlegroups.com>... > On Apr 1, 2:05 pm, "snehal d" <shruti8...(a)gmail.com> wrote: > > I need code for dilation and erosion , i don't want to use function imdilate() and imerode() so plz send me both the codes... > > --------------------------------------------------------------------------------------------------- > Dilation is simply the local maximum, and erosion is simply the local > minimum. You can program this up yourself with the blockproc(), > min(), and max() functions. > Good luck. What is this blockproc() function?
From: ImageAnalyst on 4 Apr 2010 14:49 On Apr 4, 2:36 pm, "snehal d" <shruti8...(a)gmail.com> wrote: > What is this blockproc() function? --------------------------------------------------------- Did you look it up in the help? It might have a different name in old versions, like blkproc or something like that. Basically it slides a window along and processes what is inside the window. It's like nlfilter() (which those of us who have the Image Processing Toolbox can use), except that it's in base MATLAB so that unfortunate chaps who don't have nlfilter can use it instead of nlfilter.
From: ImageAnalyst on 4 Apr 2010 14:51
Anyway, if you don't have nlfilter or blockproc, just write it yourself. The dumb, brute force method is just 4 nested for loops - very trivial. |