Filter2d not working as intended (Bug #1472)

Added by rohitsethidce - over 13 years ago. Updated almost 13 years ago.

Status:	Cancelled	Start date:
Priority:	Low	Due date:
Assignee:	Vadim Pisarevsky	% Done:	0%
Category:	imgproc, video
Target version:	2.4.0
Affected version:		Operating System:
Difficulty:		HW Platform:
Pull request:

Description

I prototyped my algorithm in Matlab and was deploying it in OpenCV and the output doesnt seem to be anywhere close to the Matlab result.
I debugged it more and more to arrive at the conclusion that its because of the Filter2d/Sepfilter2d method thats getting used more and more in my program .
I've attached a sample run of Filter2d/Sepfilter2d on a small mat , along with Matlab results for the same mat. The filter is applied in the horizontal and vertical direction.

filter_result.rtf - Filter2d results vs Matlab (1.4 kB) rohitsethidce -, 2011-11-14 06:54 pm

Associated revisions

Revision 0ecd7913
Added by Alexander Smorkalov over 11 years ago

Merge pull request #1472 from alalek:master_fix_debug_builds_on_win

History

#1
Updated by Vadim Pisarevsky over 13 years ago

How did you call filter2D? Can you supply a short sample program? The same question about Matlab.
Looks like results in the center are the same. So, I think, the problem is about using different border interpolation methods. On our tests filter2D works fine, so until the issue is clarified and reproduced, I'm lowering the bug priority.

#2
Updated by Alexander Shishkov about 13 years ago

Description changed from I prototyped my algorithm in Matlab and was deploying it in [[OpenCV]] and th... to I prototyped my algorithm in Matlab and was deploying it in OpenCV and the ou... More