Wrap CUDA OpenCV Code to be called from Python












0















So, I have an accelerated version of an algorithm coded on OpenCV with CUDA support, and I want to call this function and use the result in Python. At the end it returns a cv::Mat.



So, my questions are:




  1. What is the easiest way to wrap my function?

  2. How do I "catch" the resulting cv::Mat and convert it to np.array to be employed from Python?


I have already considered Cython, SWIG, and the native interface from Python but none of them are clear to me.










share|improve this question




















  • 1





    Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

    – Dan Mašek
    Nov 21 '18 at 0:06











  • I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

    – toolelucidator
    Nov 21 '18 at 9:17













  • So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

    – toolelucidator
    Nov 21 '18 at 15:54


















0















So, I have an accelerated version of an algorithm coded on OpenCV with CUDA support, and I want to call this function and use the result in Python. At the end it returns a cv::Mat.



So, my questions are:




  1. What is the easiest way to wrap my function?

  2. How do I "catch" the resulting cv::Mat and convert it to np.array to be employed from Python?


I have already considered Cython, SWIG, and the native interface from Python but none of them are clear to me.










share|improve this question




















  • 1





    Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

    – Dan Mašek
    Nov 21 '18 at 0:06











  • I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

    – toolelucidator
    Nov 21 '18 at 9:17













  • So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

    – toolelucidator
    Nov 21 '18 at 15:54
















0












0








0








So, I have an accelerated version of an algorithm coded on OpenCV with CUDA support, and I want to call this function and use the result in Python. At the end it returns a cv::Mat.



So, my questions are:




  1. What is the easiest way to wrap my function?

  2. How do I "catch" the resulting cv::Mat and convert it to np.array to be employed from Python?


I have already considered Cython, SWIG, and the native interface from Python but none of them are clear to me.










share|improve this question
















So, I have an accelerated version of an algorithm coded on OpenCV with CUDA support, and I want to call this function and use the result in Python. At the end it returns a cv::Mat.



So, my questions are:




  1. What is the easiest way to wrap my function?

  2. How do I "catch" the resulting cv::Mat and convert it to np.array to be employed from Python?


I have already considered Cython, SWIG, and the native interface from Python but none of them are clear to me.







python c++ opencv






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 21 '18 at 5:06









talonmies

59.4k17128197




59.4k17128197










asked Nov 21 '18 at 0:03









toolelucidatortoolelucidator

1




1








  • 1





    Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

    – Dan Mašek
    Nov 21 '18 at 0:06











  • I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

    – toolelucidator
    Nov 21 '18 at 9:17













  • So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

    – toolelucidator
    Nov 21 '18 at 15:54
















  • 1





    Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

    – Dan Mašek
    Nov 21 '18 at 0:06











  • I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

    – toolelucidator
    Nov 21 '18 at 9:17













  • So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

    – toolelucidator
    Nov 21 '18 at 15:54










1




1





Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

– Dan Mašek
Nov 21 '18 at 0:06





Why don't you look at the source code of OpenCV. The the python bindings already contain the relevant code. Also search around, because there are multiple pages and SO questions addressing this topic.

– Dan Mašek
Nov 21 '18 at 0:06













I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

– toolelucidator
Nov 21 '18 at 9:17







I have already found several topics but none with CUDA references, actually i'm working based on the code from this topic: stackoverflow.com/questions/28502434/…

– toolelucidator
Nov 21 '18 at 9:17















So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

– toolelucidator
Nov 21 '18 at 15:54







So, just in case that works for someone y found easily and fully compatible with OpenCV 3.4.0 and CUDA 9.0 using Boost. Hope can work for someone, i'm going to upload a working version to github as soon as possible. Thanks a lot for your help

– toolelucidator
Nov 21 '18 at 15:54














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