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Commit dd1091bb authored by Ilya Lavrenov's avatar Ilya Lavrenov
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a reference function for remap was stabilized

parent a201233b
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Showing with 282 additions and 409 deletions
modules/imgproc/test/test_imgwarp_strict.cpp
View file @ dd1091bb
......@@ -46,19 +46,23 @@
#include <iostream>
using namespace cv;
using namespace std;
void __wrap_printf_func(const char* fmt, ...)
namespace internal
{
void __wrap_printf_func(const char* fmt, ...)
{
va_list args;
va_start(args, fmt);
char buffer[256];
vsprintf (buffer, fmt, args);
cvtest::TS::ptr()->printf(cvtest::TS::SUMMARY, buffer);
va_end(args);
}
#define PRINT_TO_LOG __wrap_printf_func
}
#define PRINT_TO_LOG __wrap_printf_func
using internal::PRINT_TO_LOG;
#define SHOW_IMAGE
#undef SHOW_IMAGE
......@@ -70,23 +74,19 @@ class CV_ImageWarpBaseTest :
public cvtest::BaseTest
{
public:
enum
{
cell_size = 10
};
enum { cell_size = 10 };
CV_ImageWarpBaseTest();
virtual void run(int);
virtual ~CV_ImageWarpBaseTest();
virtual void run(int);
protected:
virtual void generate_test_data();
virtual void run_func() = 0;
virtual void run_reference_func() = 0;
virtual void validate_results() const = 0;
virtual void validate_results() const;
virtual void prepare_test_data_for_reference_func();
Size randSize(RNG& rng) const;
......@@ -95,11 +95,12 @@ protected:
int interpolation;
Mat src;
Mat dst;
Mat reference_dst;
};
CV_ImageWarpBaseTest::CV_ImageWarpBaseTest() :
BaseTest(), interpolation(-1),
src(), dst()
src(), dst(), reference_dst()
{
test_case_count = 40;
ts->set_failed_test_info(cvtest::TS::OK);
......@@ -126,58 +127,11 @@ const char* CV_ImageWarpBaseTest::interpolation_to_string(int inter) const
return "Unsupported/Unkown interpolation type";
}
void interpolateLinear(float x, float* coeffs)
{
coeffs[0] = 1.f - x;
coeffs[1] = x;
}
void interpolateCubic(float x, float* coeffs)
{
const float A = -0.75f;
coeffs[0] = ((A*(x + 1) - 5*A)*(x + 1) + 8*A)*(x + 1) - 4*A;
coeffs[1] = ((A + 2)*x - (A + 3))*x*x + 1;
coeffs[2] = ((A + 2)*(1 - x) - (A + 3))*(1 - x)*(1 - x) + 1;
coeffs[3] = 1.f - coeffs[0] - coeffs[1] - coeffs[2];
}
void interpolateLanczos4(float x, float* coeffs)
{
static const double s45 = 0.70710678118654752440084436210485;
static const double cs[][2]=
{{1, 0}, {-s45, -s45}, {0, 1}, {s45, -s45}, {-1, 0}, {s45, s45}, {0, -1}, {-s45, s45}};
if( x < FLT_EPSILON )
{
for( int i = 0; i < 8; i++ )
coeffs[i] = 0;
coeffs[3] = 1;
return;
}
float sum = 0;
double y0=-(x+3)*CV_PI*0.25, s0 = sin(y0), c0=cos(y0);
for(int i = 0; i < 8; i++ )
{
double y = -(x+3-i)*CV_PI*0.25;
coeffs[i] = (float)((cs[i][0]*s0 + cs[i][1]*c0)/(y*y));
sum += coeffs[i];
}
sum = 1.f/sum;
for(int i = 0; i < 8; i++ )
coeffs[i] *= sum;
}
typedef void (*interpolate_method)(float x, float* coeffs);
interpolate_method inter_array[] = { &interpolateLinear, &interpolateCubic, &interpolateLanczos4 };
Size CV_ImageWarpBaseTest::randSize(RNG& rng) const
{
Size size;
size.width = saturate_cast<int>(std::exp(rng.uniform(0.0, 7.0)));
size.height = saturate_cast<int>(std::exp(rng.uniform(0.0, 7.0)));
size.width = saturate_cast<uint>(std::exp(rng.uniform(1.0f, 7.0f)));
size.height = saturate_cast<uint>(std::exp(rng.uniform(1.0f, 7.0f)));
return size;
}
......@@ -186,17 +140,16 @@ void CV_ImageWarpBaseTest::generate_test_data()
{
RNG& rng = ts->get_rng();
Size ssize = randSize(rng);
// generating the src matrix structure
Size ssize = randSize(rng), dsize;
int depth = CV_8S;
int depth = rng.uniform(0, CV_64F);
while (depth == CV_8S || depth == CV_32S)
depth = rng.uniform(0, CV_64F);
int cn = rng.uniform(1, 4);
while (cn == 2)
cn = rng.uniform(1, 4);
interpolation = rng.uniform(0, CV_INTER_LANCZOS4 + 1);
interpolation = INTER_NEAREST;
src.create(ssize, CV_MAKE_TYPE(depth, cn));
......@@ -217,6 +170,41 @@ void CV_ImageWarpBaseTest::generate_test_data()
for (x = cell_size; x < src.cols; x += cell_size)
line(src, Point2i(x, 0), Point2i(x, src.rows), Scalar::all(0), 1);
}
// generating an interpolation type
interpolation = rng.uniform(0, CV_INTER_LANCZOS4 + 1);
// generating the dst matrix structure
double scale_x = 2, scale_y = 2;
if (interpolation == INTER_AREA)
{
bool area_fast = rng.uniform(0., 1.) > 0.5;
if (area_fast)
{
scale_x = rng.uniform(2, 5);
scale_y = rng.uniform(2, 5);
}
else
{
scale_x = rng.uniform(1.0, 3.0);
scale_y = rng.uniform(1.0, 3.0);
}
}
else
{
scale_x = rng.uniform(0.4, 4.0);
scale_y = rng.uniform(0.4, 4.0);
}
CV_Assert(scale_x > 0.0f && scale_y > 0.0f);
dsize.width = saturate_cast<int>((ssize.width + scale_x - 1) / scale_x);
dsize.height = saturate_cast<int>((ssize.height + scale_y - 1) / scale_y);
dst = Mat::zeros(dsize, src.type());
reference_dst = Mat::zeros(dst.size(), CV_MAKE_TYPE(CV_32F, dst.channels()));
if (interpolation == INTER_AREA && (scale_x < 1.0 || scale_y < 1.0))
interpolation = INTER_LINEAR;
}
void CV_ImageWarpBaseTest::run(int)
......@@ -236,6 +224,90 @@ void CV_ImageWarpBaseTest::run(int)
ts->set_gtest_status();
}
void CV_ImageWarpBaseTest::validate_results() const
{
Mat _dst;
dst.convertTo(_dst, reference_dst.depth());
Size dsize = dst.size(), ssize = src.size();
int cn = _dst.channels();
dsize.width *= cn;
float t = 1.0f;
if (interpolation == INTER_CUBIC)
t = 1.0f;
else if (interpolation == INTER_LANCZOS4)
t = 1.0f;
else if (interpolation == INTER_NEAREST)
t = 1.0f;
else if (interpolation == INTER_AREA)
t = 2.0f;
for (int dy = 0; dy < dsize.height; ++dy)
{
const float* rD = reference_dst.ptr<float>(dy);
const float* D = _dst.ptr<float>(dy);
for (int dx = 0; dx < dsize.width; ++dx)
if (fabs(rD[dx] - D[dx]) > t &&
// fabs(rD[dx] - D[dx]) < 250.0f &&
rD[dx] <= 255.0f && D[dx] <= 255.0f && rD[dx] >= 0.0f && D[dx] >= 0.0f)
{
PRINT_TO_LOG("\nNorm of the difference: %lf\n", norm(reference_dst, _dst, NORM_INF));
PRINT_TO_LOG("Error in (dx, dy): (%d, %d)\n", dx / cn + 1, dy + 1);
PRINT_TO_LOG("Tuple (rD, D): (%f, %f)\n", rD[dx], D[dx]);
PRINT_TO_LOG("Dsize: (%d, %d)\n", dsize.width / cn, dsize.height);
PRINT_TO_LOG("Ssize: (%d, %d)\n", src.cols, src.rows);
float scale_x = static_cast<float>(ssize.width) / dsize.width,
scale_y = static_cast<float>(ssize.height) / dsize.height;
PRINT_TO_LOG("Interpolation: %s\n", interpolation_to_string(interpolation == INTER_AREA &&
fabs(scale_x - cvRound(scale_x)) < FLT_EPSILON &&
fabs(scale_y - cvRound(scale_y)) < FLT_EPSILON ? INTER_LANCZOS4 + 1 : interpolation));
PRINT_TO_LOG("Scale (x, y): (%lf, %lf)\n", scale_x, scale_y);
PRINT_TO_LOG("Elemsize: %d\n", src.elemSize1());
PRINT_TO_LOG("Channels: %d\n", cn);
#ifdef SHOW_IMAGE
const std::string w1("OpenCV impl (run func)"), w2("Reference func"), w3("Src image"), w4("Diff");
namedWindow(w1, CV_WINDOW_KEEPRATIO);
namedWindow(w2, CV_WINDOW_KEEPRATIO);
namedWindow(w3, CV_WINDOW_KEEPRATIO);
namedWindow(w4, CV_WINDOW_KEEPRATIO);
Mat diff;
absdiff(reference_dst, _dst, diff);
imshow(w1, dst);
imshow(w2, reference_dst);
imshow(w3, src);
imshow(w4, diff);
waitKey();
#endif
const int radius = 3;
int rmin = MAX(dy - radius, 0), rmax = MIN(dy + radius, dsize.height);
int cmin = MAX(dx / cn - radius, 0), cmax = MIN(dx / cn + radius, dsize.width);
std::cout << "opencv result:\n" << dst(Range(rmin, rmax), Range(cmin, cmax)) << std::endl;
std::cout << "reference result:\n" << reference_dst(Range(rmin, rmax), Range(cmin, cmax)) << std::endl;
ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
return;
}
}
}
void CV_ImageWarpBaseTest::prepare_test_data_for_reference_func()
{
if (src.depth() != CV_32F)
{
Mat tmp;
src.convertTo(tmp, CV_32F);
src = tmp;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
// Resize
////////////////////////////////////////////////////////////////////////////////////////////////////////
......@@ -252,13 +324,11 @@ protected:
virtual void run_func();
virtual void run_reference_func();
virtual void validate_results() const;
private:
double scale_x;
double scale_y;
bool area_fast;
Mat reference_dst;
void resize_generic();
void resize_area();
......@@ -270,8 +340,8 @@ private:
};
CV_Resize_Test::CV_Resize_Test() :
CV_ImageWarpBaseTest(), scale_x(), scale_y(),
area_fast(false), reference_dst()
CV_ImageWarpBaseTest(), scale_x(),
scale_y(), area_fast(false)
{
}
......@@ -279,43 +349,63 @@ CV_Resize_Test::~CV_Resize_Test()
{
}
void CV_Resize_Test::generate_test_data()
namespace internal
{
CV_ImageWarpBaseTest::generate_test_data();
RNG& rng = ts->get_rng();
Size dsize, ssize = src.size();
if (interpolation == INTER_AREA)
void interpolateLinear(float x, float* coeffs)
{
area_fast = rng.uniform(0., 1.) > 0.5;
if (area_fast)
{
scale_x = rng.uniform(2, 5);
scale_y = rng.uniform(2, 5);
coeffs[0] = 1.f - x;
coeffs[1] = x;
}
else
void interpolateCubic(float x, float* coeffs)
{
scale_x = rng.uniform(1.0, 3.0);
scale_y = rng.uniform(1.0, 3.0);
const float A = -0.75f;
coeffs[0] = ((A*(x + 1) - 5*A)*(x + 1) + 8*A)*(x + 1) - 4*A;
coeffs[1] = ((A + 2)*x - (A + 3))*x*x + 1;
coeffs[2] = ((A + 2)*(1 - x) - (A + 3))*(1 - x)*(1 - x) + 1;
coeffs[3] = 1.f - coeffs[0] - coeffs[1] - coeffs[2];
}
void interpolateLanczos4(float x, float* coeffs)
{
static const double s45 = 0.70710678118654752440084436210485;
static const double cs[][2]=
{{1, 0}, {-s45, -s45}, {0, 1}, {s45, -s45}, {-1, 0}, {s45, s45}, {0, -1}, {-s45, s45}};
if( x < FLT_EPSILON )
{
for( int i = 0; i < 8; i++ )
coeffs[i] = 0;
coeffs[3] = 1;
return;
}
else
float sum = 0;
double y0=-(x+3)*CV_PI*0.25, s0 = sin(y0), c0=cos(y0);
for(int i = 0; i < 8; i++ )
{
scale_x = rng.uniform(0.4, 4.0);
scale_y = rng.uniform(0.4, 4.0);
double y = -(x+3-i)*CV_PI*0.25;
coeffs[i] = (float)((cs[i][0]*s0 + cs[i][1]*c0)/(y*y));
sum += coeffs[i];
}
dsize.width = saturate_cast<int>((ssize.width + scale_x - 1) / scale_x);
dsize.height = saturate_cast<int>((ssize.height + scale_y - 1) / scale_y);
dst = Mat::zeros(dsize, src.type());
reference_dst = Mat::zeros(dst.size(), CV_MAKE_TYPE(CV_32F, dst.channels()));
sum = 1.f/sum;
for(int i = 0; i < 8; i++ )
coeffs[i] *= sum;
}
typedef void (*interpolate_method)(float x, float* coeffs);
interpolate_method inter_array[] = { &interpolateLinear, &interpolateCubic, &interpolateLanczos4 };
}
void CV_Resize_Test::generate_test_data()
{
CV_ImageWarpBaseTest::generate_test_data();
scale_x = src.cols / static_cast<double>(dst.cols);
scale_y = src.rows / static_cast<double>(dst.rows);
if (interpolation == INTER_AREA && (scale_x < 1.0 || scale_y < 1.0))
interpolation = INTER_LINEAR;
area_fast = interpolation == INTER_AREA &&
fabs(scale_x - cvRound(scale_x)) < FLT_EPSILON &&
fabs(scale_y - cvRound(scale_y)) < FLT_EPSILON;
......@@ -333,12 +423,8 @@ void CV_Resize_Test::run_func()
void CV_Resize_Test::run_reference_func()
{
if (src.depth() != CV_32F)
{
Mat tmp;
src.convertTo(tmp, CV_32F);
src = tmp;
}
CV_ImageWarpBaseTest::prepare_test_data_for_reference_func();
if (interpolation == INTER_AREA)
resize_area();
else
......@@ -347,7 +433,7 @@ void CV_Resize_Test::run_reference_func()
double CV_Resize_Test::getWeight(double a, double b, int x)
{
float w = std::min(x + 1., b) - std::max(x + 0., a);
float w = std::min<double>(x + 1, b) - std::max<double>(x, a);
CV_Assert(w >= 0);
return w;
}
......@@ -427,7 +513,7 @@ void CV_Resize_Test::resize_1d(const Mat& _src, Mat& _dst, int dy, const dim& _d
}
else if (interpolation == INTER_LINEAR || interpolation == INTER_CUBIC || interpolation == INTER_LANCZOS4)
{
interpolate_method inter_func = inter_array[interpolation - (interpolation == INTER_LANCZOS4 ? 2 : 1)];
internal::interpolate_method inter_func = internal::inter_array[interpolation - (interpolation == INTER_LANCZOS4 ? 2 : 1)];
int elemsize = _src.elemSize();
int ofs = 0, ksize = 2;
......@@ -435,8 +521,6 @@ void CV_Resize_Test::resize_1d(const Mat& _src, Mat& _dst, int dy, const dim& _d
ofs = 1, ksize = 4;
else if (interpolation == INTER_LANCZOS4)
ofs = 3, ksize = 8;
cv::AutoBuffer<float> _w(ksize);
float* w = _w;
Mat _extended_src_row(1, _src.cols + ksize * 2, _src.type());
uchar* srow = _src.data + dy * _src.step;
......@@ -455,6 +539,7 @@ void CV_Resize_Test::resize_1d(const Mat& _src, Mat& _dst, int dy, const dim& _d
float *xyD = yD + dx * cn;
const float* xyS = _extended_src_row.ptr<float>(0) + (isx + ksize - ofs) * cn;
float w[ksize];
inter_func(fsx, w);
for (int r = 0; r < cn; ++r)
......@@ -512,80 +597,6 @@ void CV_Resize_Test::resize_generic()
transpose(reference_dst, reference_dst);
}
void CV_Resize_Test::validate_results() const
{
Mat _dst = dst;
if (dst.depth() != reference_dst.depth())
{
Mat tmp;
dst.convertTo(tmp, reference_dst.depth());
_dst = tmp;
}
Size dsize = dst.size();
int cn = _dst.channels();
dsize.width *= cn;
float t = 1.0f;
if (interpolation == INTER_CUBIC)
t = 1.0f;
else if (interpolation == INTER_LANCZOS4)
t = 1.0f;
else if (interpolation == INTER_NEAREST)
t = 1.0f;
else if (interpolation == INTER_AREA)
t = 2.0f;
for (int dy = 0; dy < dsize.height; ++dy)
{
const float* rD = reference_dst.ptr<float>(dy);
const float* D = _dst.ptr<float>(dy);
for (int dx = 0; dx < dsize.width; ++dx)
if (fabs(rD[dx] - D[dx]) > t)
{
PRINT_TO_LOG("\nNorm of the difference: %lf\n", norm(reference_dst, _dst, NORM_INF));
PRINT_TO_LOG("Error in (dx, dy): (%d, %d)\n", dx / cn + 1, dy + 1);
PRINT_TO_LOG("Tuple (rD, D): (%f, %f)\n", rD[dx], D[dx]);
PRINT_TO_LOG("Dsize: (%d, %d)\n", dsize.width / cn, dsize.height);
PRINT_TO_LOG("Ssize: (%d, %d)\n", src.cols, src.rows);
PRINT_TO_LOG("Interpolation: %s\n",
interpolation_to_string(area_fast ? INTER_LANCZOS4 + 1 : interpolation));
PRINT_TO_LOG("Scale (x, y): (%lf, %lf)\n", scale_x, scale_y);
PRINT_TO_LOG("Elemsize: %d\n", src.elemSize());
PRINT_TO_LOG("Channels: %d\n", cn);
#ifdef SHOW_IMAGE
const std::string w1("Resize (run func)"), w2("Reference Resize"), w3("Src image"), w4("Diff");
namedWindow(w1, CV_WINDOW_KEEPRATIO);
namedWindow(w2, CV_WINDOW_KEEPRATIO);
namedWindow(w3, CV_WINDOW_KEEPRATIO);
namedWindow(w4, CV_WINDOW_KEEPRATIO);
Mat diff;
absdiff(reference_dst, _dst, diff);
imshow(w1, dst);
imshow(w2, reference_dst);
imshow(w3, src);
imshow(w4, diff);
waitKey();
#endif
/*
const int radius = 3;
int rmin = MAX(dy - radius, 0), rmax = MIN(dy + radius, dsize.height);
int cmin = MAX(dx - radius, 0), cmax = MIN(dx + radius, dsize.width);
cout << "opencv result:\n" << dst(Range(rmin, rmax), Range(cmin, cmax)) << endl;
cout << "reference result:\n" << reference_dst(Range(rmin, rmax), Range(cmin, cmax)) << endl;
*/
ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
return;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
// remap
////////////////////////////////////////////////////////////////////////////////////////////////////////
......@@ -607,7 +618,6 @@ protected:
virtual void run_func();
virtual void run_reference_func();
virtual void validate_results() const;
Mat mapx, mapy;
int borderType;
......@@ -615,23 +625,18 @@ protected:
remap_func funcs[2];
Mat dilate_src;
Mat erode_src;
Mat dilate_dst;
Mat erode_dst;
private:
void remap_nearest(const Mat&, Mat&);
void remap_generic(const Mat&, Mat&);
void convert_maps();
const char* borderType_to_string() const;
virtual void validate_results() const;
};
CV_Remap_Test::CV_Remap_Test() :
CV_ImageWarpBaseTest(), mapx(), mapy(),
borderType(), borderValue(), dilate_src(), erode_src(),
dilate_dst(), erode_dst()
borderType(-1), borderValue()
{
funcs[0] = &CV_Remap_Test::remap_nearest;
funcs[1] = &CV_Remap_Test::remap_generic;
......@@ -641,17 +646,6 @@ CV_Remap_Test::~CV_Remap_Test()
{
}
const char* CV_Remap_Test::borderType_to_string() const
{
if (borderType == BORDER_CONSTANT)
return "BORDER_CONSTANT";
if (borderType == BORDER_REPLICATE)
return "BORDER_REPLICATE";
if (borderType == BORDER_REFLECT)
return "BORDER_REFLECT";
return "Unsupported/Unkown border type";
}
void CV_Remap_Test::generate_test_data()
{
CV_ImageWarpBaseTest::generate_test_data();
......@@ -660,31 +654,14 @@ void CV_Remap_Test::generate_test_data()
borderType = rng.uniform(1, BORDER_WRAP);
borderValue = Scalar::all(rng.uniform(0, 255));
Size dsize = randSize(rng);
dst.create(dsize, src.type());
// generating the mapx, mapy matrix
// generating the mapx, mapy matrices
static const int mapx_types[] = { CV_16SC2, CV_32FC1, CV_32FC2 };
mapx.create(dst.size(), mapx_types[rng.uniform(0, sizeof(mapx_types) / sizeof(int))]);
mapy.release();
mapy = Mat();
const int n = std::min(std::min(src.cols, src.rows) / 10 + 1, 2);
float _n = 0; //static_cast<float>(-n);
// mapy.release();
// mapx.create(dst.size(), CV_32FC2);
// for (int y = 0; y < dsize.height; ++y)
// {
// float* yM = mapx.ptr<float>(y);
// for (int x = 0; x < dsize.width; ++x)
// {
// float* xyM = yM + (x << 1);
// xyM[0] = x;
// xyM[1] = y;
// }
// }
// return;
switch (mapx.type())
{
case CV_16SC2:
......@@ -707,7 +684,7 @@ void CV_Remap_Test::generate_test_data()
{
MatIterator_<ushort> begin_y = mapy.begin<ushort>(), end_y = mapy.end<ushort>();
for ( ; begin_y != end_y; ++begin_y)
begin_y[0] = (ushort)rng.uniform(0, 1024);
begin_y[0] = rng.uniform(0, 1024);
}
break;
......@@ -715,7 +692,7 @@ void CV_Remap_Test::generate_test_data()
{
MatIterator_<short> begin_y = mapy.begin<short>(), end_y = mapy.end<short>();
for ( ; begin_y != end_y; ++begin_y)
begin_y[0] = (short)rng.uniform(0, 1024);
begin_y[0] = rng.uniform(0, 1024);
}
break;
}
......@@ -750,6 +727,10 @@ void CV_Remap_Test::generate_test_data()
}
}
break;
default:
assert(0);
break;
}
}
......@@ -760,41 +741,33 @@ void CV_Remap_Test::run_func()
void CV_Remap_Test::convert_maps()
{
if (mapx.type() == mapy.type() && mapx.type() == CV_32FC1)
{
Mat maps[] = { mapx, mapy };
Mat dst_map;
merge(maps, sizeof(maps) / sizeof(Mat), dst_map);
mapx = dst_map;
}
else if (interpolation == INTER_NEAREST && mapx.type() == CV_16SC2)
{
Mat tmp_mapx;
mapx.convertTo(tmp_mapx, CV_32F);
mapx = tmp_mapx;
mapy.release();
return;
}
else if (mapx.type() != CV_32FC2)
{
Mat out_mapy;
convertMaps(mapx.clone(), mapy, mapx, out_mapy, CV_32FC2, interpolation == INTER_NEAREST);
}
if (mapx.type() != CV_16SC2)
convertMaps(mapx.clone(), mapy.clone(), mapx, mapy, CV_16SC2, interpolation == INTER_NEAREST);
else if (interpolation != INTER_NEAREST)
if (mapy.type() != CV_16UC1)
mapy.clone().convertTo(mapy, CV_16UC1);
if (interpolation == INTER_NEAREST)
mapy = Mat();
CV_Assert((interpolation == INTER_NEAREST && !mapy.data || mapy.type() == CV_16UC1 ||
mapy.type() == CV_16SC1) && mapx.type() == CV_16SC2);
}
mapy.release();
const char* CV_Remap_Test::borderType_to_string() const
{
if (borderType == BORDER_CONSTANT)
return "BORDER_CONSTANT";
if (borderType == BORDER_REPLICATE)
return "BORDER_REPLICATE";
if (borderType == BORDER_REFLECT)
return "BORDER_REFLECT";
return "Unsupported/Unkown border type";
}
void CV_Remap_Test::prepare_test_data_for_reference_func()
{
CV_ImageWarpBaseTest::prepare_test_data_for_reference_func();
convert_maps();
if (src.depth() != CV_32F)
{
Mat _src;
src.convertTo(_src, CV_32F);
src = _src;
}
/*
const int ksize = 3;
Mat kernel = getStructuringElement(CV_MOP_ERODE, Size(ksize, ksize));
......@@ -812,12 +785,6 @@ void CV_Remap_Test::prepare_test_data_for_reference_func()
src.copyTo(dilate_src, dst_mask);
dst_mask.release();
*/
dilate_src = src;
erode_src = src;
dilate_dst = Mat::zeros(dst.size(), dilate_src.type());
erode_dst = Mat::zeros(dst.size(), erode_src.type());
}
void CV_Remap_Test::run_reference_func()
......@@ -826,17 +793,15 @@ void CV_Remap_Test::run_reference_func()
if (interpolation == INTER_AREA)
interpolation = INTER_LINEAR;
CV_Assert(interpolation != INTER_AREA);
int index = interpolation == INTER_NEAREST ? 0 : 1;
(this->*funcs[index])(erode_src, erode_dst);
(this->*funcs[index])(dilate_src, dilate_dst);
(this->*funcs[index])(src, reference_dst);
}
void CV_Remap_Test::remap_nearest(const Mat& _src, Mat& _dst)
{
CV_Assert(_src.depth() == CV_32F && _dst.type() == _src.type());
CV_Assert(mapx.type() == CV_32FC2);
CV_Assert(mapx.type() == CV_16SC2 && !mapy.data);
Size ssize = _src.size(), dsize = _dst.size();
CV_Assert(ssize.area() > 0 && dsize.area() > 0);
......@@ -844,36 +809,36 @@ void CV_Remap_Test::remap_nearest(const Mat& _src, Mat& _dst)
for (int dy = 0; dy < dsize.height; ++dy)
{
const float* yM = mapx.ptr<float>(dy);
const short* yM = mapx.ptr<short>(dy);
float* yD = _dst.ptr<float>(dy);
for (int dx = 0; dx < dsize.width; ++dx)
{
float* xyD = yD + cn * dx;
int sx = cvRound(yM[dx * 2]), sy = cvRound(yM[dx * 2 + 1]);
int sx = yM[dx * 2], sy = yM[dx * 2 + 1];
if (sx >= 0 && sx < ssize.width && sy >= 0 && sy < ssize.height)
{
const float *S = _src.ptr<float>(sy) + sx * cn;
const float *xyS = _src.ptr<float>(sy) + sx * cn;
for (int r = 0; r < cn; ++r)
xyD[r] = S[r];
xyD[r] = xyS[r];
}
else if (borderType != BORDER_TRANSPARENT)
{
if (borderType == BORDER_CONSTANT)
for (int r = 0; r < cn; ++r)
xyD[r] = (float)borderValue[r];
xyD[r] = borderValue[r];
else
{
sx = borderInterpolate(sx, ssize.width, borderType);
sy = borderInterpolate(sy, ssize.height, borderType);
CV_Assert(sx >= 0 && sy >= 0 && sx < ssize.width && sy < ssize.height);
const float *S = _src.ptr<float>(sy) + sx * cn;
const float *xyS = _src.ptr<float>(sy) + sx * cn;
for (int r = 0; r < cn; ++r)
xyD[r] = S[r];
xyD[r] = xyS[r];
}
}
}
......@@ -882,78 +847,75 @@ void CV_Remap_Test::remap_nearest(const Mat& _src, Mat& _dst)
void CV_Remap_Test::remap_generic(const Mat& _src, Mat& _dst)
{
int ksize = 2;
if (interpolation == INTER_CUBIC)
CV_Assert(mapx.type() == CV_16SC2 && mapy.type() == CV_16UC1);
int ksize;
if (interpolation == INTER_LINEAR)
ksize = 2;
else if (interpolation == INTER_CUBIC)
ksize = 4;
else if (interpolation == INTER_LANCZOS4)
ksize = 8;
else
assert(0);
int ofs = (ksize / 2) - 1;
CV_Assert(_src.depth() == CV_32F && _dst.type() == _src.type());
CV_Assert(mapx.type() == CV_32FC2);
Size ssize = _src.size(), dsize = _dst.size();
int cn = _src.channels(), width1 = std::max(ssize.width - ksize / 2, 0), height1 = std::max(ssize.height - ksize / 2, 0);
int cn = _src.channels(), width1 = std::max(ssize.width - ksize + 1, 0),
height1 = std::max(ssize.height - ksize + 1, 0);
float ix[8], w[16];
interpolate_method inter_func = inter_array[interpolation - (interpolation == INTER_LANCZOS4 ? 2 : 1)];
internal::interpolate_method inter_func = internal::inter_array[interpolation - (interpolation == INTER_LANCZOS4 ? 2 : 1)];
for (int dy = 0; dy < dsize.height; ++dy)
{
const float* yM = mapx.ptr<float>(dy);
const short* yMx = mapx.ptr<short>(dy);
const ushort* yMy = mapy.ptr<ushort>(dy);
float* yD = _dst.ptr<float>(dy);
for (int dx = 0; dx < dsize.width; ++dx)
{
float* xyD = yD + dx * cn;
float sx = yM[dx * 2], sy = yM[dx * 2 + 1];
float sx = yMx[dx * 2], sy = yMx[dx * 2 + 1];
int isx = cvFloor(sx), isy = cvFloor(sy);
float fsx = sx - isx, fsy = sy - isy;
inter_func(fsx, w);
inter_func(fsy, w + ksize);
inter_func((yMy[dx] & (INTER_TAB_SIZE - 1)) / static_cast<float>(INTER_TAB_SIZE), w);
inter_func(((yMy[dx] >> INTER_BITS) & (INTER_TAB_SIZE - 1)) / static_cast<float>(INTER_TAB_SIZE), w + ksize);
isx -= ofs;
isy -= ofs;
if (isx >= ofs && isx < width1 && isy >= ofs && isy < height1)
if (isx >= 0 && isx < width1 && isy >= 0 && isy < height1)
{
for (int r = 0; r < cn; ++r)
{
for (int y = 0; y < ksize; ++y)
{
const float* xyS = _src.ptr<float>(isy + y - ofs) + isx * cn;
const float* xyS = _src.ptr<float>(isy + y) + isx * cn;
ix[y] = 0;
for (int i = 0; i < ksize; ++i)
ix[y] += w[i] * xyS[i * cn + r];
}
xyD[r] = 0;
for (int i = 0; i < ksize; ++i)
xyD[r] += w[ksize + i] * ix[i];
}
}
else if (borderType != BORDER_TRANSPARENT)
{
if (borderType == BORDER_CONSTANT &&
(isx >= ssize.width || isx + ksize <= 0 ||
isy >= ssize.height || isy + ksize <= 0))
for (int r = 0; r < cn; ++r)
xyD[r] = (float)borderValue[r];
else
{
int ar_x[8], ar_y[8];
for(int k = 0; k < ksize; k++ )
for (int k = 0; k < ksize; k++)
{
ar_x[k] = borderInterpolate(isx + k - ofs, ssize.width, borderType) * cn;
ar_y[k] = borderInterpolate(isy + k - ofs, ssize.height, borderType);
CV_Assert(ar_x[k] < ssize.width * cn && ar_y[k] < ssize.height);
ar_x[k] = borderInterpolate(isx + k, ssize.width, borderType) * cn;
ar_y[k] = borderInterpolate(isy + k, ssize.height, borderType);
}
for (int r = 0; r < cn; r++)
{
// if (interpolation == INTER_LINEAR)
{
xyD[r] = 0;
for (int i = 0; i < ksize; ++i)
{
......@@ -962,13 +924,7 @@ void CV_Remap_Test::remap_generic(const Mat& _src, Mat& _dst)
{
const float* yS = _src.ptr<float>(ar_y[i]);
for (int j = 0; j < ksize; ++j)
if (ar_x[j] >= 0)
{
CV_Assert(ar_x[j] < ssize.width * cn);
ix[i] += yS[ar_x[j] + r] * w[j];
}
else
ix[i] += borderValue[r] * w[j];
ix[i] += (ar_x[j] >= 0 ? yS[ar_x[j] + r] : borderValue[r]) * w[j];
}
else
for (int j = 0; j < ksize; ++j)
......@@ -977,27 +933,6 @@ void CV_Remap_Test::remap_generic(const Mat& _src, Mat& _dst)
for (int i = 0; i < ksize; ++i)
xyD[r] += w[ksize + i] * ix[i];
}
// else
// {
// int ONE = 1;
// if (src.elemSize() == 4)
// ONE <<= 15;
//
// float cv = borderValue[r], sum = cv * ONE;
// for (int i = 0; i < ksize; ++i)
// {
// int yi = ar_y[i];
// if (yi < 0)
// continue;
// const float* S1 = _src.ptr<float>(ar_y[i]);
// for (int j = 0; j < ksize; ++j)
// if( ar_x[j] >= 0 )
// sum += (S1[ar_x[j] + r] - cv) * w[j];
// }
// xyD[r] = sum;
// }
}
}
}
}
}
......@@ -1005,78 +940,12 @@ void CV_Remap_Test::remap_generic(const Mat& _src, Mat& _dst)
void CV_Remap_Test::validate_results() const
{
Mat _dst;
dst.convertTo(_dst, CV_32F);
Size dsize = _dst.size(), ssize = src.size();
dsize.width *= _dst.channels();
CV_Assert(_dst.size() == erode_dst.size() && dilate_dst.size() == _dst.size());
CV_Assert(dilate_dst.type() == _dst.type() && _dst.type() == erode_dst.type());
for (int y = 0; y < dsize.height; ++y)
CV_ImageWarpBaseTest::validate_results();
if (cvtest::TS::ptr()->get_err_code() == cvtest::TS::FAIL_BAD_ACCURACY)
{
const float* D = _dst.ptr<float>(y);
const float* dD = dilate_dst.ptr<float>(y);
const float* eD = erode_dst.ptr<float>(y);
dD = eD;
float t = 1.0f;
for (int x = 0; x < dsize.width; ++x)
if ( !(eD[x] - t <= D[x] && D[x] <= dD[x] + t) )
{
PRINT_TO_LOG("\nnorm(erode_dst, dst): %lf\n", norm(erode_dst, _dst, NORM_INF));
PRINT_TO_LOG("norm(dst, dilate_dst): %lf\n", norm(_dst, dilate_dst, NORM_INF));
PRINT_TO_LOG("(dx, dy): (%d, %d)\n", x / _dst.channels() + 1, 1 + y);
PRINT_TO_LOG("Values = (%f, %f, %f)\n", eD[x], D[x], dD[x]);
PRINT_TO_LOG("Interpolation: %s\n",
interpolation_to_string((interpolation | CV_WARP_INVERSE_MAP) ^ CV_WARP_INVERSE_MAP));
PRINT_TO_LOG("Ssize: (%d, %d)\n", ssize.width, ssize.height);
PRINT_TO_LOG("Dsize: (%d, %d)\n", _dst.cols, dsize.height);
PRINT_TO_LOG("BorderType: %s\n", borderType_to_string());
PRINT_TO_LOG("BorderValue: (%f, %f, %f, %f)\n",
borderValue[0], borderValue[1], borderValue[2], borderValue[3]);
#ifdef _SHOW_IMAGE
std::string w1("Dst"), w2("Erode dst"), w3("Dilate dst"), w4("Diff erode"), w5("Diff dilate");
cv::namedWindow(w1, CV_WINDOW_AUTOSIZE);
cv::namedWindow(w2, CV_WINDOW_AUTOSIZE);
cv::namedWindow(w3, CV_WINDOW_AUTOSIZE);
cv::namedWindow(w4, CV_WINDOW_AUTOSIZE);
cv::namedWindow(w5, CV_WINDOW_AUTOSIZE);
Mat diff_dilate, diff_erode;
absdiff(_dst, erode_dst, diff_erode);
absdiff(_dst, dilate_dst, diff_dilate);
cv::imshow(w1, dst / 255.);
cv::imshow(w2, erode_dst / 255.);
cv::imshow(w3, dilate_dst / 255.);
cv::imshow(w4, erode_dst / 255.);
cv::imshow(w5, dilate_dst / 255.);
cv::waitKey();
#endif
/*
const int radius = 3;
int rmin = MAX(y - radius, 0), rmax = MIN(y + radius, dsize.height);
int cmin = MAX(x - radius, 0), cmax = MIN(x + radius, dsize.width);
cout << "src:\n" << src(Range(rmin, rmax), Range(cmin, cmax)) << endl;
cout << "opencv result:\n" << dst(Range(rmin, rmax), Range(cmin, cmax)) << endl << std::endl;
cout << "erode src:\n" << erode_src(Range(rmin, rmax), Range(cmin, cmax)) << endl;
cout << "erode result:\n" << dilate_dst(Range(rmin, rmax), Range(cmin, cmax)) << endl << std::endl;
cout << "dilate src:\n" << dilate_src(Range(rmin, rmax), Range(cmin, cmax)) << endl;
cout << "dilate result:\n" << dilate_dst(Range(rmin, rmax), Range(cmin, cmax)) << endl << std::endl;
*/
ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
return;
}
}
}
......@@ -1094,6 +963,7 @@ public:
protected:
virtual void generate_test_data();
virtual void prepare_test_data_for_reference_func();
virtual void run_func();
virtual void run_reference_func();
......@@ -1115,14 +985,6 @@ CV_WarpAffine_Test::~CV_WarpAffine_Test()
void CV_WarpAffine_Test::generate_test_data()
{
CV_Remap_Test::generate_test_data();
CV_Remap_Test::prepare_test_data_for_reference_func();
if (src.depth() != CV_32F)
{
Mat tmp;
src.convertTo(tmp, CV_32F);
src = tmp;
}
RNG& rng = ts->get_rng();
......@@ -1150,19 +1012,24 @@ void CV_WarpAffine_Test::run_func()
cv::warpAffine(src, dst, M, dst.size(), interpolation, borderType, borderValue);
}
void CV_WarpAffine_Test::prepare_test_data_for_reference_func()
{
CV_ImageWarpBaseTest::prepare_test_data_for_reference_func();
}
void CV_WarpAffine_Test::run_reference_func()
{
CV_Remap_Test::prepare_test_data_for_reference_func();
prepare_test_data_for_reference_func();
warpAffine(erode_src, erode_dst);
warpAffine(dilate_src, dilate_dst);
warpAffine(src, reference_dst);
}
void CV_WarpAffine_Test::warpAffine(const Mat& _src, Mat& _dst)
{
Size dsize = _dst.size();
CV_Assert(_src.size().area() > 0 && dsize.area() > 0);
CV_Assert(_src.size().area() > 0);
CV_Assert(dsize.area() > 0);
CV_Assert(_src.type() == _dst.type());
Mat tM;
......@@ -1175,6 +1042,8 @@ void CV_WarpAffine_Test::warpAffine(const Mat& _src, Mat& _dst)
mapx.create(dsize, CV_16SC2);
if (inter != INTER_NEAREST)
mapy.create(dsize, CV_16SC1);
else
mapy = Mat();
if (!(interpolation & CV_WARP_INVERSE_MAP))
invertAffineTransform(tM.clone(), tM);
......@@ -1204,6 +1073,7 @@ void CV_WarpAffine_Test::warpAffine(const Mat& _src, Mat& _dst)
}
}
CV_Assert(mapx.type() == CV_16SC2 && (inter == INTER_NEAREST && !mapy.data || mapy.type() == CV_16SC1));
cv::remap(_src, _dst, mapx, mapy, inter, borderType, borderValue);
}
......@@ -1245,11 +1115,11 @@ void CV_WarpPerspective_Test::generate_test_data()
// generating the M 3x3 matrix
RNG& rng = ts->get_rng();
Point2f sp[] = { Point(0, 0), Point(src.cols, 0), Point(0, src.rows), Point(src.cols, src.rows) };
Point2f dp[] = { Point(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point(rng.uniform(0, src.cols), rng.uniform(0, src.rows)) };
Point2f sp[] = { Point2f(0, 0), Point2f(src.cols, 0), Point2f(0, src.rows), Point2f(src.cols, src.rows) };
Point2f dp[] = { Point2f(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point2f(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point2f(rng.uniform(0, src.cols), rng.uniform(0, src.rows)),
Point2f(rng.uniform(0, src.cols), rng.uniform(0, src.rows)) };
M = getPerspectiveTransform(sp, dp);
static const int depths[] = { CV_32F, CV_64F };
......@@ -1264,17 +1134,17 @@ void CV_WarpPerspective_Test::run_func()
void CV_WarpPerspective_Test::run_reference_func()
{
CV_Remap_Test::prepare_test_data_for_reference_func();
prepare_test_data_for_reference_func();
warpPerspective(erode_src, erode_dst);
warpPerspective(dilate_src, dilate_dst);
warpPerspective(src, reference_dst);
}
void CV_WarpPerspective_Test::warpPerspective(const Mat& _src, Mat& _dst)
{
Size ssize = _src.size(), dsize = _dst.size();
CV_Assert(ssize.area() > 0 && dsize.area() > 0);
CV_Assert(ssize.area() > 0);
CV_Assert(dsize.area() > 0);
CV_Assert(_src.type() == _dst.type());
if (M.depth() != CV_64F)
......@@ -1298,6 +1168,8 @@ void CV_WarpPerspective_Test::warpPerspective(const Mat& _src, Mat& _dst)
mapx.create(dsize, CV_16SC2);
if (inter != INTER_NEAREST)
mapy.create(dsize, CV_16SC1);
else
mapy = Mat();
double* tM = M.ptr<double>(0);
for (int dy = 0; dy < dsize.height; ++dy)
......@@ -1327,6 +1199,7 @@ void CV_WarpPerspective_Test::warpPerspective(const Mat& _src, Mat& _dst)
}
}
CV_Assert(mapx.type() == CV_16SC2 && (inter == INTER_NEAREST && !mapy.data || mapy.type() == CV_16SC1));
cv::remap(_src, _dst, mapx, mapy, inter, borderType, borderValue);
}
......@@ -1335,6 +1208,6 @@ void CV_WarpPerspective_Test::warpPerspective(const Mat& _src, Mat& _dst)
////////////////////////////////////////////////////////////////////////////////////////////////////////
TEST(Imgproc_Resize_Test, accuracy) { CV_Resize_Test test; test.safe_run(); }
// TEST(Imgproc_Remap_Test, accuracy) { CV_Remap_Test test; test.safe_run(); }
TEST(Imgproc_Remap_Test, accuracy) { CV_Remap_Test test; test.safe_run(); }
TEST(Imgproc_WarpAffine_Test, accuracy) { CV_WarpAffine_Test test; test.safe_run(); }
TEST(Imgproc_WarpPerspective_Test, accuracy) { CV_WarpPerspective_Test test; test.safe_run(); }
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