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[Octave-bug-tracker] [bug #41916] image package: regionprops 'boudingbox

From: David Pirotte
Subject: [Octave-bug-tracker] [bug #41916] image package: regionprops 'boudingbox' incorrect results
Date: Mon, 24 Mar 2014 22:37:16 +0000
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X) AppleWebKit/538.1 (KHTML, like Gecko) Safari/538.1 Debian/unstable (3.8.2-5) Epiphany/3.8.2

Follow-up Comment #9, bug #41916 (project octave):

Hello Jordi,

> ... (and I still can't tell what's the output you consider correct)

The results we consider correct are:

  3.6 - 2.0.0-3:
    ans = 0.50000 36.50000 39.00000 64.00000
The results we consider incorrect are:

  3.8 - 2.2.1-1: stats(1).BoundingBox
    ans = 0.50000 70.50000 32.00000 50.00000

Please note that we do _not_ rely on any bwlabel order in our use it, it just
happens that in both octave sessions I ran, the [same] object[*] we refer to
to expose the problem is at the same position, 1, in the structure
returned by regionprops:

  [*] in sm-mask2.png [attached], it is the first top left object,
  which looks like an inverted triangle as you probably understood by
  now, but just to clarify in case...



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