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added minMaxLoc function into gpu module

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This commit is contained in:
Alexey Spizhevoy
2010-11-24 11:40:14 +00:00
parent d366c0b2fa
commit 27690e3b6e
4 changed files with 354 additions and 17 deletions
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66
tests/gpu/src/arithm.cpp
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@@ -733,6 +733,71 @@ struct CV_GpuMinMaxTest: public CvTest
};
////////////////////////////////////////////////////////////////////////////////
// Min max loc
struct CV_GpuMinMaxLocTest: public CvTest
{
CV_GpuMinMaxLocTest(): CvTest("GPU-MinMaxLocTest", "minMaxLoc") {}
void run(int)
{
for (int depth = CV_8U; depth <= CV_64F; ++depth)
{
int rows = 1, cols = 3;
test(rows, cols, depth);
for (int i = 0; i < 4; ++i)
{
int rows = 1 + rand() % 1000;
int cols = 1 + rand() % 1000;
test(rows, cols, depth);
}
}
}
void test(int rows, int cols, int depth)
{
cv::Mat src(rows, cols, depth);
cv::RNG rng;
for (int i = 0; i < src.rows; ++i)
{
Mat row(1, src.cols * src.elemSize(), CV_8U, src.ptr(i));
rng.fill(row, RNG::UNIFORM, Scalar(0), Scalar(255));
}
double minVal, maxVal;
cv::Point minLoc, maxLoc;
if (depth != CV_8S)
cv::minMaxLoc(src, &minVal, &maxVal, &minLoc, &maxLoc);
else
{
// OpenCV's minMaxLoc doesn't support CV_8S type
minVal = std::numeric_limits<double>::max();
maxVal = std::numeric_limits<double>::min();
for (int i = 0; i < src.rows; ++i)
for (int j = 0; j < src.cols; ++j)
{
char val = src.at<char>(i, j);
if (val < minVal) { minVal = val; minLoc = cv::Point(j, i); }
if (val > maxVal) { maxVal = val; maxLoc = cv::Point(j, i); }
}
}
double minVal_, maxVal_;
cv::Point minLoc_, maxLoc_;
cv::gpu::minMaxLoc(cv::gpu::GpuMat(src), &minVal_, &maxVal_, &minLoc_, &maxLoc_);
CHECK(minVal == minVal_, CvTS::FAIL_INVALID_OUTPUT);
CHECK(maxVal == maxVal_, CvTS::FAIL_INVALID_OUTPUT);
CHECK(0 == memcmp(src.ptr(minLoc.y) + minLoc.x * src.elemSize(), src.ptr(minLoc_.y) + minLoc_.x * src.elemSize(), src.elemSize()),
CvTS::FAIL_INVALID_OUTPUT);
CHECK(0 == memcmp(src.ptr(maxLoc.y) + maxLoc.x * src.elemSize(), src.ptr(maxLoc_.y) + maxLoc_.x * src.elemSize(), src.elemSize()),
CvTS::FAIL_INVALID_OUTPUT);
}
};
/////////////////////////////////////////////////////////////////////////////
/////////////////// tests registration /////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
@@ -760,3 +825,4 @@ CV_GpuNppImagePhaseTest CV_GpuNppImagePhase_test;
CV_GpuNppImageCartToPolarTest CV_GpuNppImageCartToPolar_test;
CV_GpuNppImagePolarToCartTest CV_GpuNppImagePolarToCart_test;
CV_GpuMinMaxTest CV_GpuMinMaxTest_test;
CV_GpuMinMaxLocTest CV_GpuMinMaxLocTest_test;