opencv/modules/imgproc/perf/perf_remap.cpp

#include "perf_precomp.hpp"

using namespace std;
using namespace cv;
using namespace perf;
using namespace testing;
using std::tr1::make_tuple;
using std::tr1::get;

CV_ENUM(MatrixType, CV_16UC1, CV_16SC1, CV_32FC1)
CV_ENUM(MapType, CV_16SC2, CV_32FC1, CV_32FC2)
CV_ENUM(InterType, INTER_LINEAR, INTER_CUBIC, INTER_LANCZOS4, INTER_NEAREST)

typedef TestBaseWithParam< tr1::tuple<Size, MatrixType, MapType, InterType> > TestRemap;

PERF_TEST_P( TestRemap, Remap,
             Combine(
                Values( szVGA, sz1080p ), 
                ValuesIn( MatrixType::all() ), 
                ValuesIn( MapType::all() ), 
                ValuesIn( InterType::all() ) 
             )
)
{
    Size sz;
    int src_type, map1_type, inter_type;

    sz         = get<0>(GetParam());
    src_type   = get<1>(GetParam());
    map1_type  = get<2>(GetParam());
    inter_type = get<3>(GetParam());

    Mat src(sz, src_type);
    Mat map1(sz, map1_type);
    Mat dst(sz, src_type);
    
    Mat map2(map1_type == CV_32FC1 ? sz : Size(), CV_32FC1);
        
    RNG rng;
    rng.fill(src, RNG::UNIFORM, 0, 256);
    
    for (int j = 0; j < map1.rows; ++j)
        for (int i = 0; i < map1.cols; ++i)
            switch (map1_type)
            {
                case CV_32FC1:
                    map1.at<float>(j, i) = (float)(src.cols - i);
                    map2.at<float>(j, i) = (float)j;
                    break;
                case CV_32FC2:
                    map1.at<Vec2f>(j, i)[0] = (float)(src.cols - i);
                    map1.at<Vec2f>(j, i)[1] = (float)j;
                    break;
                case CV_16SC2:
                    map1.at<Vec2s>(j, i)[0] = (short)(src.cols - i);
                    map1.at<Vec2s>(j, i)[1] = (short)j;
                    break;
                default:
                    CV_Assert(0);
            }


    declare.in(src, WARMUP_RNG).out(dst).time(20);

    TEST_CYCLE() remap(src, dst, map1, map2, inter_type);

    SANITY_CHECK(dst);
}