Build a tracker with open cv,clapack and visual studio 2015 [closed]

asked 2016-01-31 11:10:21 -0600

anony gravatar image

Hi I am trying to run the code of a visual object tracker that is written in c/c++ and is advised to configure using opencv 2.1 and lapack .however I am trying to run the code using visual studio 2015 ,open cv 3.0 or 3.1 inside visual studio with clapack. Below are the errors i am getting.

Error LNK2019 unresolved external symbol _dpotrf_ referenced in function _main tracker

Error LNK2019 unresolved external symbol _dgeqrf_ referenced in function _main tracker

Error LNK2019 unresolved external symbol _dorgqr_ referenced in function _main tracker

Now i think it is due to name mangling as the _ underscore before the function is shown ,but the thing is clapack.h file has the function declared using extern c . i have used all the necessary libraries and include folder to best of my knowledge.Any help would be greatly appreciated

Thank you

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Closed for the following reason question is not relevant or outdated by sturkmen
close date 2020-12-08 18:16:38.758238

Comments

I think that's not an opencv problem but a linker problem. You have to give path to lapack lib in visual studio as dpotrf seems to be a lapck function.

LBerger gravatar imageLBerger ( 2016-01-31 12:26:35 -0600 )edit

I know it is a clapack function . but didn't find answer any where so i asked here .just in case some one might have run into the similar problem and have found a solution

anony gravatar imageanony ( 2016-01-31 12:44:49 -0600 )edit

have you path to clapack lib to linker?

LBerger gravatar imageLBerger ( 2016-01-31 12:59:54 -0600 )edit

yes i have added blasd.lib lapackd.lib and libf2cd.lib in linker, additional library directories but still getting the same error

anony gravatar imageanony ( 2016-01-31 13:23:36 -0600 )edit

Is your source code available on github?

LBerger gravatar imageLBerger ( 2016-01-31 14:07:19 -0600 )edit

It is available on this site http://cv.snu.ac.kr/jhkwon/PAMI14_tra... .a geometric particle filter for template based visual tracking

anony gravatar imageanony ( 2016-01-31 21:01:05 -0600 )edit

grossly outdated code, unfortunately. i would not try too hard with that, but rather look for an alternative.

berak gravatar imageberak ( 2016-02-01 00:30:43 -0600 )edit

@berak thank you for looking at the code but it is not a solution .your comment only teaches that whenever there is a problem look for an easy way out . beside this i don't have any alternative option

anony gravatar imageanony ( 2016-02-01 03:08:42 -0600 )edit

@anony, it was just meant as a warning. since it is deprecated c-api all the way down, it will be hard to understand, maintain or fix.

berak gravatar imageberak ( 2016-02-01 03:27:49 -0600 )edit

Did you write an extern "C" declaration for the functions (from lapack) you used in your program, such as:

extern "C" void dpotrf_(char *uplo,int *jb,double *A,int *lda,int *info);
tuannhtn gravatar imagetuannhtn ( 2016-02-01 04:57:41 -0600 )edit
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