Hough transform using CUDA

asked 2013-06-03 09:44:10 -0600

emma
1

Hi, I'm trying to detect circles in an image using CUDA. I found a function called: "gpu::HoughCircles()" in openCV that supposed to do the Hough transform using CUDA. Unfortunately, it doesn't work. I get the message:

"OpenCV Error: No GPU support (The library is compiled without GPU support) in unknown function, file C:/slave/builds/WinInstallerMegaPack/src/opencv/modules/gpu/src/precomp.hpp, line 135"

Does anyone know what the problem is? Thanks in advance, Emma

answered 2013-06-03 11:55:07 -0600

Vladislav Vinogradov

4775 ●4 ●24 ●62

updated 2013-06-05 11:30:21 -0600

This means that OpenCV was built without CUDA support.

Which version do you use? The last one (2.4.5) hasn't prebuilt binaries with CUDA support. Previous releases has binaries with CUDA support in separate folder.

== UPDATE ==

For OpenCV 2.4.4 version you should download separate archive with pre-built binaries with CUDA support.

But this binaries was built with CUDA 4.2. If you want to work with CUDA 5.0 you have to build OpenCV from sources.

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I'm using openCV 2.4.4 and cuda toolkit 5

emma ( 2013-06-05 08:03:42 -0600 )edit

If you have a windows 7 operating system with Visual Studio 2010, this topic has a link with prebuilt CUDA libraries, however only for architecture 2.1, which is supported by my card. However the topic has a nice guide on how to do everything.

StevenPuttemans ( 2013-06-05 12:36:01 -0600 )edit

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