openCV 3.0，openCL和meanShiftFiltering [英] openCV 3.0, openCL and meanShiftFiltering

问题描述

基于openCV 3.0和openCL的更改，我似乎无法使pyrMeanShiftFiltering使用openCL正常工作.我知道openCV 2.4.10支持ocl :: meanShiftFiltering.下面的两个功能执行相同的时间.

Based on the changes in openCV 3.0 and openCL, I can not seem to get pyrMeanShiftFiltering to work using openCL. I know that ocl::meanShiftFiltering was supported in openCV 2.4.10. The two functions below take the same amount of time to execute.

我什至如何检查openCL所支持的openCV 3.0中的哪些功能?有什么建议?

How can I even check which functions in openCV 3.0 are supported under openCL? Any suggestions?

 #include <opencv2/core/ocl.hpp>   //attempting to use openCL
 using namespace cv;
 using namespace ocl;
    void meanShiftOCL()
    {
      setUseOpenCL(true)
      UMat in, out;
      imread("./images/img.png").copyTo(in);
      pyrMeanShiftFiltering(in, out, 40, 20, 3);    
    }


   //not using openCL
   void meanShift()
   {
     Mat in, out;
     imread("./images/img.png").copyTo(in);
     pyrMeanShiftFiltering(in, out, 40, 20, 3);        
   }

推荐答案

我不确定是否可以通过给定的 OpenCV 二进制文件来确定它的简单方法，但是您可以重新编译 OpenCV 带有其他定义(可以在cmake中指定):

I'm not sure that there is simple way to determine it with given OpenCV binaries, but you can recompile OpenCV yourself with additional define (can be specified in cmake):

CV_OPENCL_RUN_VERBOSE

通过此定义，可以使用 OpenCL 实现的每个功能都将在控制台(stdout)中显示以下消息:

With this define every function for which OpenCL implementation is available will print to console (stdout) the following message:

<function name>: OpenCL implementation is running

关于您的问题-据我所知，目前pyrMeanShiftFiltering没有 OpenCL 实现.

Regarded to your question - currently pyrMeanShiftFiltering doesn't have OpenCL implementation, as I know.

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