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[Octave-bug-tracker] [bug #34893] conv2 produces different results for s
From: |
Jordi Gutiérrez Hermoso |
Subject: |
[Octave-bug-tracker] [bug #34893] conv2 produces different results for shape 'valid' depending on the orientation of matrix B |
Date: |
Sat, 21 Apr 2012 15:17:35 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20110109 Lightningturtle/3.6.13 |
Follow-up Comment #13, bug #34893 (project octave):
After some analysis, it appears that Sunghyun Cho's patch is not correct,
since it breaks this case:
x = rand(100);
y = ones(5);
A = conv2(x,y)(5:end-4,5:end-4);
B = conv2(x,y,"valid");
With the patch, A and B are only approximately equal. Without it, they're
exactly equal.
However, I think I'm slowly starting to understand the convoluted (haha) conv2
code. I will attempt another fix, but probably not for the 3.6.2 release.
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