opencv/modules/ocl/perf/perf_canny.cpp

/*M///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
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// @Authors
//    Fangfang Bai, fangfang@multicorewareinc.com
//    Jin Ma,       jin@multicorewareinc.com
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#include "precomp.hpp"

///////////// Canny ////////////////////////
PERFTEST(Canny)
{
    Mat img = imread(abspath("aloeL.jpg"), CV_LOAD_IMAGE_GRAYSCALE);

    if (img.empty())
    {
        throw runtime_error("can't open aloeL.jpg");
    }

    SUBTEST << img.cols << 'x' << img.rows << "; aloeL.jpg" << "; edges" << "; CV_8UC1";

    Mat edges(img.size(), CV_8UC1), ocl_edges;

    CPU_ON;
    Canny(img, edges, 50.0, 100.0);
    CPU_OFF;

    ocl::oclMat d_img(img);
    ocl::oclMat d_edges;
    ocl::CannyBuf d_buf;

    WARMUP_ON;
    ocl::Canny(d_img, d_buf, d_edges, 50.0, 100.0);
    WARMUP_OFF;

    GPU_ON;
    ocl::Canny(d_img, d_buf, d_edges, 50.0, 100.0);
    GPU_OFF;

    GPU_FULL_ON;
    d_img.upload(img);
    ocl::Canny(d_img, d_buf, d_edges, 50.0, 100.0);
    d_edges.download(ocl_edges);
    GPU_FULL_OFF;

    TestSystem::instance().ExceptedMatSimilar(edges, ocl_edges, 2e-2);
}