Thread Subject:

region growing for multiple roi

hi,
i am trying to segment multiple ROIs in sequence. once 1st roi is obtained, the process repeats excluding 1st roi in image to find 2nd. Process repeats for 3rd roi excluding roi 1&2. how to go about this?

"subbmdee " <pani1mys@rediffmail.com> wrote in message <k2co54$j5s$1@newscl01ah.mathworks.com>...
> hi,
> i am trying to segment multiple ROIs in sequence. once 1st roi is obtained, the process repeats excluding 1st roi in image to find 2nd. Process repeats for 3rd roi excluding roi 1&2. how to go about this?
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Just mask it out to set that first roi to zero

newImage = oldImage;
newImage(rol1) = 0;

Put into a loop so each image has roi from prior image zeroed out.