HOGDescriptor crash when loading saved .xml (Bug #2607)

Added by K Chen over 12 years ago. Updated about 12 years ago.

Status:	Done	Start date:
Priority:	Normal	Due date:
Assignee:	Evgeny Talanin	% Done:	0%
Category:	objdetect
Target version:	2.4.4
Affected version:	2.4.3	Operating System:
Difficulty:		HW Platform:
Pull request:	https://github.com/Itseez/opencv/pull/359

Description

The HOGDescriptor will always crash when loading a pre-saved .xml file.
Just add two lines below and you can reproduce this bug:

hog.write("hog.xml");
hog.read("hog.xml");

Error message:
OpenCV Error: Unspecified error (The sequence element is not a numerical scalar) in cvReadRawDataSlice, file /somepath/OpenCV-2.4.3/modules/core/src/persistence.cpp, line 3367

Associated revisions

Revision 50c2f87a
Added by Evgeny Talanin about 12 years ago

Fix and test for #2607

Revision 5522c14e
Added by Andrey Pavlenko almost 11 years ago

Merge pull request #2607 from ilya-lavrenov:warn_sup

History

#1
Updated by Anna Kogan over 12 years ago

Hello K Chen,

Thank you for reporting the issue! Could you please add code above the lines you attached - some code concerning HOG descriptor call and use? And please specify whether you use HOG from GPU or OCL module.

Target version set to 3.0

#2
Updated by K Chen over 12 years ago

Sorry I was in a hurry. This bug can be reproduced as follows.

In samples/cpp/peopledetect.cpp, after line 50, add the two lines below, compile & run, then it will crash.

hog.write("hog.xml");
hog.read("hog.xml");

I am using OpenCV 2.4.3, under ubuntu 12.04 32bit, with OpenGL, Qt, CUDA, SSE3 and many other support(no TBB no IPP). The source code was downloaded from SourceForge.