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Re: filling holes in blobs quickly [message #30225 is a reply to message #30224]

Tue, 16 April 2002 02:33

anne.martel
Messages: 6
Registered: April 2002

Junior Member

You could find the connected dark region outside of the bright blobs.
Anything that doesn't belong to that region is either a bright object
or a dark hole completely surrounded by bright pixels.

r = search2d(mask,0,0,0,0)
if(r(0) ge 0) then begin
mask(*)=1
mask(r)=0
endif

This assumes that [0,0] always lies outside a blob.

Anne

dmartin@chaos.ph.utexas.edu (Doug Martin) wrote in message news:<d2bf73f3.0204151417.6e64bf7d@posting.google.com>...
> I'm sure this is a well solved problem, but:
> I'm trying to fill in holes inside of domains (blobs) quickly. The
> domains are in a binary image, and are bright.
>
> Right now, I search for dark regions - the holes (label_region);
> pick out those of a small size (histogram and where);
> and then fill them in (a FOR loop through the where values, since I
> don't know how to get where to compare to every value in a vector).
>
> This is slow, and I strongly suspect there is an intelligent way to do
> this: fill in all dark blobs up to a certain size.
>
> Thanks for any help,
>
> Doug Martin
> University of Texas at Austin

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[Message index]

		Re: filling holes in blobs quickly By: the_cacc on Tue, 16 April 2002 02:50
		Re: filling holes in blobs quickly By: anne.martel on Tue, 16 April 2002 02:33
		Re: filling holes in blobs quickly By: Ted Cary on Mon, 15 April 2002 17:42
		Re: filling holes in blobs quickly By: dmartin on Wed, 17 April 2002 14:05

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