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2015-04-13 20:05:43 -0500 received badge  Necromancer (source)
2015-01-07 12:26:52 -0500 asked a question videoreader_gpu not recognized

Hi! I have build OpenCV 2.4.10 on Win7, 32bits, with CUDA, OpenGL and TBB. When I try to use cv::gpu::VideoReader_GPU method it is not available. I have found several threads with similar questions, most of them unanswered, this is the only useful one, but it did not work for me:

http://answers.opencv.org/question/29...

Does anybody have any clue?

2015-01-07 10:46:56 -0500 commented question VideoReader_GPU not available, but built with NVCUVID?

Hi! I am having the same problem. Where did you edit and removed the CUDA_DISABLER line? I found it in video_reader and video_writer. I onnly disabled it in video_reader. Did you find out why is that condition for?

Thanks for your help!

D!

2015-01-07 10:46:34 -0500 answered a question VideoReader_GPU not available, but built with NVCUVID?

Hi! I am having the same problem. Where did you edit and removed the CUDA_DISABLER line? I can't find it anywhere :( Thanks for your help! D!

2015-01-07 09:43:23 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Now it looks like I should have compiled with NVCUVID support, re-building again...

2015-01-07 09:42:37 -0500 answered a question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

This guide solved my problems with CUDA, OpenGL and TBB:

http://initialneil.wordpress.com/2014...

I hope it helps.

2015-01-07 05:24:54 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

This link is pretty useful: http://initialneil.wordpress.com/2014...

2015-01-07 05:07:43 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

The Intellisense problems disapeared after adding the include algorithm line, so no probs with that.

2015-01-07 04:58:50 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

I did, I was thinking about how it affects to building OpenCV

2015-01-07 04:01:49 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Now, I have a bunch of errors regarding Intellisense. I am having trouble to find any information about it. What is Intellisense?

2015-01-07 03:25:07 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

More problems: in addition to not finding the tbb libs, there are 2 more errors: error: namespace "std" has no member "max" in project opencv_gpu This did not happened before. This solves the problem: http://code.opencv.org/issues/4084

2015-01-05 10:35:19 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Not just that. Once I have everything built, no OpenGL support is available. I will send more info shortly

2015-01-05 10:05:14 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Thanks a lot thdarksdfthmn. I am using th ai32 version of TBB. It is just a matter of path: if I correct it when building, it builds OK.

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2015-01-05 09:28:13 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Now, the problem is the path given by CMake to find the tbb libs is wrong.

2015-01-05 09:26:40 -0500 commented question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

I have re ran CMake without CUDA, OpenGL and TBB and it builds OK. I am trying now, with the libs built, to re build with all the options

2015-01-05 09:26:40 -0500 asked a question Building OpenCV using Visual Studio 2013 OpenGL CUDA and TBB

Hello everybody and happy new year for those under gregorain calendar!

I have been trying to build OpenCV 2.4.10 on Windows 7 32bit using Visual Studio 2013 and it has been a real pain. Mostly, I think it is my lack of expertice what is making it so difficult. I have make some achivements but unfortunatelly it is not working 100%.

I would like to write a small manual not so focused on the step by step -it can be frustrating when one of those steps fails and you don't know how to reach the next one- and more focused on understanding what is happening on each step, why and what to expect when something goes wrong. I ask for your help, sure you have faced lot of them before and can explain why it is happening. I am downloading 3 to build with CMake 3.0.2 and Visual Studio 2013. I will update this thread as I take steps.

My aim is to build 2.4.10 with CUDA, TBB and OpenGL support. And make it work :)

  • Clone OpenCV 2.4.10 (I am using TortoiseGit at C:\OpenCV\src\src)
  • Download TBB Compiled (link: TBB WindowsOS)
  • Unzip TBB in C:\OpenCV\src\opt\tbb
  • Unzip OpenCV source in C:\OpenCV\src dir
  • Open CMake and target source dir C:\OpenCV\src and built dir C:\OpenCV\built
  • Configure CMake for the first time
    • Select Visual Studio 12 2013, Use default native compilers for a configuration Win32
    • Select this options:
    • Under WITH tab:
      • WITH_CUDA (already checked)
      • WITH_OPENGL
      • WITH_TBB
  • And click configure again...

Here, OPENGL libs are found (opengl32 and glu32) and first missing paths appear (TBB_INCLUDE_DIRS), those for TBB_INCLUDE_DIRS, so:

  • Point that line to C:\OpenCV\src\opt\tbb\include and click configure again.

After that configuration process, TBB tab appears in red with LIB_DIR and STDDEF_PATH labels pointed to my TBB folder.

  • Click configure again to confirm the changes.

This time, there are no tag in red, and everything seems to be fine. I check the output and GUI OpenGL support is set to Yes, and so is Use TBB (ver 4.3 interface 8002) under Other third-party libraries, so

  • Click Generate to generate the Visual Studio files

Files are generated, so

  • Open Visual Studio 2013 and open OpenCV solution at C:\OpenCV\built and wait for it to be ready

  • Select Debug and then Build Solution (Ctrl+Shift+B) and wait...

First errors happen when it tries to find the core lib, so I re-run CMake for a simple build, without OpenGL, CUDA or TBB.

So, first question is, why is this happening? Should it not build first the core libs and then go ahead with the rest of libs?

I will keep updating as answers come and as I keep on going...

Thanks a lot everybody!

D!

2014-10-14 09:21:57 -0500 answered a question Compiling OpenCV 2.4.9 with CUDA on Mavericks

Same problem here :( But my error folder is -L-Wl,/usr/local/cuda Any help?