[Pkg-octave-devel] Bug#557579: octave-image: imtophat fails if parameter validity checks pass
Tuure Laurinolli
tuure at laurinolli.net
Mon Nov 23 00:49:42 UTC 2009
Package: octave-image
Version: 1.0.8-3+b1
Severity: normal
Whenever imtophat is called with parameters that pass its parameter validation, and it attempts to perform the actual top-hat filtering operation, it attempts to access undefined variable and causes an error.
Test code:
test.m:
I = [1 1 1; 1 1 1; 1 1 1;];
se = [1 1; 0 1;];
imtophat(I, se)
Execution:
% octave test.m
Actual output:
error: `SE' undefined near line 33 column 29
error: evaluating argument list element number 2
error: evaluating prefix operator `!' near line 33, column 17
error: evaluating binary operator `&' near line 33, column 15
error: evaluating assignment expression near line 33, column 10
error: called from `imtophat' in file `/usr/share/octave/packages/3.0/image-1.0.8/imtophat.m'
error: near line 3 of file `test.m'
Expected output:
ans =
0 0 1
0 0 1
1 1 1
Analysis:
It appears that the imopen call in
/usr/share/octave/packages/3.0/image-1.0.8/imtophat.m erroneously
refers to 'SE' when it should refer to 'se'. How this could ever have
worked, I don't know. Perhaps Octave was case-insensitive in the past?
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.28.7pryan (SMP w/2 CPU cores)
Locale: LANG=en_US, LC_CTYPE=fi_FI at euro (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash
Versions of packages octave-image depends on:
ii imagemagick 7:6.3.7.9.dfsg2-1 image manipulation programs
ii libatlas3gf-base [libl 3.6.0-24 Automatically Tuned Linear Algebra
ii libatlas3gf-sse2 [libl 3.6.0-24 Automatically Tuned Linear Algebra
ii libblas3gf [libblas.so 1.2-2 Basic Linear Algebra Subroutines 3
ii libc6 2.9-25 GNU C Library: Shared libraries
ii libfftw3-3 3.1.2-3.1 library for computing Fast Fourier
ii libgcc1 1:4.3.3-3 GCC support library
ii libgfortran3 4.3.3-3 Runtime library for GNU Fortran ap
ii libhdf5-serial-1.8.3 [ 1.8.3-2.1 Hierarchical Data Format 5 (HDF5)
ii libjpeg62 6b-14 The Independent JPEG Group's JPEG
ii liblapack3gf [liblapac 3.1.1-6 library of linear algebra routines
ii libncurses5 5.7+20090228-1 shared libraries for terminal hand
ii libpng12-0 1.2.35-1 PNG library - runtime
ii libreadline5 5.2-4 GNU readline and history libraries
ii libstdc++6 4.3.3-3 The GNU Standard C++ Library v3
ii octave3.0 1:3.0.5-7 GNU Octave language for numerical
ii zlib1g 1:1.2.3.3.dfsg-12 compression library - runtime
octave-image recommends no packages.
octave-image suggests no packages.
-- no debconf information
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