mirror of
https://github.com/opencv/opencv.git
synced 2024-12-24 17:18:28 +08:00
abad2ca76c
cv::rand result is not bitexact for floating-point numbers
42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
#include "perf_precomp.hpp"
|
|
|
|
using namespace std;
|
|
using namespace cv;
|
|
using namespace perf;
|
|
using std::tr1::make_tuple;
|
|
using std::tr1::get;
|
|
|
|
typedef std::tr1::tuple<Size, MatType, MatType, int, double> Size_DepthSrc_DepthDst_Channels_alpha_t;
|
|
typedef perf::TestBaseWithParam<Size_DepthSrc_DepthDst_Channels_alpha_t> Size_DepthSrc_DepthDst_Channels_alpha;
|
|
|
|
PERF_TEST_P( Size_DepthSrc_DepthDst_Channels_alpha, convertTo,
|
|
testing::Combine
|
|
(
|
|
testing::Values(szVGA, sz1080p),
|
|
testing::Values(CV_8U, CV_8S, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F),
|
|
testing::Values(CV_8U, CV_8S, CV_16U, CV_16S, CV_32S, CV_32F, CV_64F),
|
|
testing::Values(1, 4),
|
|
testing::Values(1.0, 1./255)
|
|
)
|
|
)
|
|
{
|
|
Size sz = get<0>(GetParam());
|
|
int depthSrc = get<1>(GetParam());
|
|
int depthDst = get<2>(GetParam());
|
|
int channels = get<3>(GetParam());
|
|
double alpha = get<4>(GetParam());
|
|
|
|
int maxValue = 255;
|
|
|
|
Mat src(sz, CV_MAKETYPE(depthSrc, channels));
|
|
randu(src, 0, maxValue);
|
|
Mat dst(sz, CV_MAKETYPE(depthDst, channels));
|
|
|
|
int runs = (sz.width <= 640) ? 8 : 1;
|
|
TEST_CYCLE_MULTIRUN(runs) src.convertTo(dst, depthDst, alpha);
|
|
|
|
double eps = depthSrc <= CV_32S ? 1e-12 : (FLT_EPSILON * maxValue);
|
|
eps = eps * std::max(1.0, fabs(alpha));
|
|
SANITY_CHECK(dst, eps);
|
|
}
|