Can Anyone describe me differences between OpenCV::GPU libraries and CUDA libraries??
CUDA libraries support a variety of general programming tasks, perhaps within a CUDA program.
OpenCV libraries in general are focused specifically on computer vision tasks. OpenCV::GPU libraries perform the same computer vision tasks, but use the GPU in some fashion (as opposed to just using the CPU to solve the task).
Thanks a lot bob, but still i confused with the following…
- if i want to use GPU for my computer vision task, which is more efficient CV::GPU / CUDA ??
- Suppose i want to use CV::GPU is it necessary to install CUDA ?? or with out CUDA does it works ??
- Can i develop a computer vision application with out CUDA ?
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If you program directly in CUDA, you will be programming a lower level. If you program using CV, you will be able to do higher level operations with less code.
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Very likely it will be necesssary to install CUDA on your machine if you want to use OpenCV with a CUDA GPU.
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Yes, you can develop computer vision apps without CUDA. In fact, OpenCV can work this way - it does not depend on using a CUDA GPU. People generally use CUDA GPUs to try to make things run faster.
Thanks Bob,.
Hi Can we use gpu APIs along with CUDA codes in OpenCV.
I have trouble adding CUDA codes into OpenCV which have gpu API (gpu_hog)in it. The CUDA code (that comes later at the code) returns wrong values.
Any suggestions?
I am HPC student and I have project coding by OpenCV functions and C++. I have to paralles the code for high performance, so I decide to use CUDA acceleration. I confused with the following…
- For getting a high performance , is it enough of using only CUDA?
- Can I use both OpenCV::GPU or OpenCV::CUDA with Cuda GPU?
- What is different between OpenCV::GPU and OpenCV::CUDA?
Using CUDA will always be the most optimal approach, but sometimes this will require much more coding.
If you can use a library like OpenCV, which already has CUDA integrated into some functions.
I think the difference between OpenCV::GPU and OpenCV::CUDA should be only the namespace.
I believe ::CUDA was added in OpenCV 3 and carried forward to v4.
I don’t see why you can’t use both, but you would need both v2 and v3/v4 installed. Not sure if that’s a good design decision.
Also, consider dropping a question here GitHub - opencv/opencv: Open Source Computer Vision Library.