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Finding boundary and using plots [message #37961]

Thu, 05 February 2004 08:34

Nuno Oliveira
Messages: 75
Registered: October 2003

Member

I have a little problem in here. I'm (still) dealing with ROIs) .

The case is that making the roi with cw_defroi, then I want to visualize it
in a window over the image. I get the points of the boundary, with my own
function that returns the boundary points. Everything was okay while when
the rois where rectangular or circles (besides the fact that has more points
than Fanning's boundary because of diagonals I presume).

But when the roi is a polygon I get a strange thing. After the boundary has
been displayed there lines connecting the peaks, particularly when the angle
is little.

I made a helping tool, that gives the mask of the boundary and surprise if
has not those lines! So I thought I would be from plot command, but when I
used Fanning's boundary the strange lines were not there!

Someone experienced something like this?

Cheers,

Nuno.

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Finding boundary and using plots

By: Nuno Oliveira on Thu, 05 February 2004 08:34

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