[Octave-bug-tracker] [bug #54614] [octave forge] (image) wrong results of entropyfilt

[Hartmut]

Follow-up Comment #5, bug #54614 (project octave):

Fixing stdfilt is also done in patch #9235, it just puts 0s instead of a
second copy of the image I, into the 4th input argument of
__spacial_filtering__. Both ways (comment #4 and patch #9235) effectivly
remove the second summand in __spacial_filtering__.
 This fix should also (in either of those ways) be applied to several other
filtering functions (as listed in patch #9235).

How should be proceed with this? The question is: Is there any (current) use
(in the Octave image toolbox code base) of __spacial_filtering__'s capability
to add an additional image argument (argument number 4)? This capability is
documented in spacial_filtering I think. But this helper function is "Octave
only" and so we are not constrained by Matlab compatibility in this case. We
could decide to simply remove this capability from __spacial_filtering__.cc.
What do you think?

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