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[Octave-bug-tracker] [bug #54567] median(uint8) gives bad results
From: |
Dan Sebald |
Subject: |
[Octave-bug-tracker] [bug #54567] median(uint8) gives bad results |
Date: |
Sun, 26 Aug 2018 17:21:08 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
Follow-up Comment #14, bug #54567 (project octave):
The Mohanty algorithm is actually for "running" median, or another common
terminology, "moving median". It keeps a sorted linked list for which it can
easily drop a sample when the window moves past that sample, and add a sorted
sample in the list when that sample moves into the window. This would be
something good for the signal-processing toolbox if a moving median doesn't
exist already. (Of course, Octave scripting of linked lists isn't very
efficient, so written in C++ is preferred.)
Octave's current median() with sorting is pretty efficient. The mean()
function definitely needs some work, though. There probably is not a lot of
coding, but because of its importance the routine needs attention to detail
which could take time.
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- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, (continued)
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/24
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Kai Torben Ohlhus, 2018/08/25
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Michael Godfrey, 2018/08/25
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/25
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Rik, 2018/08/25
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Dan Sebald, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Michael Godfrey, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results,
Dan Sebald <=
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Michael Godfrey, 2018/08/26
- [Octave-bug-tracker] [bug #54567] median(uint8) gives bad results, Rik, 2018/08/27