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opencv/tests/cxcore/src/adxt.cpp

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30 KiB
C++

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//////////////////////////////////////////////////////////////////////////////////////////
////////////////// tests for discrete linear transforms (FFT, DCT ...) ///////////////////
//////////////////////////////////////////////////////////////////////////////////////////
#include "cxcoretest.h"
#include <float.h>
typedef struct CvTsComplex32f
{
float re, im;
}
CvTsComplex32f;
typedef struct CvTsComplex64f
{
double re, im;
}
CvTsComplex64f;
static CvMat* cvTsInitDFTWave( int n, int inv )
{
int i;
double angle = (inv ? 1 : -1)*CV_PI*2/n;
CvTsComplex64f wi, w1;
CvMat* wave = cvCreateMat( 1, n, CV_64FC2 );
CvTsComplex64f* w = (CvTsComplex64f*)wave->data.db;
w1.re = cos(angle);
w1.im = sin(angle);
w[0].re = wi.re = 1.;
w[0].im = wi.im = 0.;
for( i = 1; i < n; i++ )
{
double t = wi.re*w1.re - wi.im*w1.im;
wi.im = wi.re*w1.im + wi.im*w1.re;
wi.re = t;
w[i] = wi;
}
return wave;
}
static void cvTsDFT_1D( const CvMat* _src, CvMat* _dst, int flags, CvMat* wave=0 )
{
int i, j, k, n = _dst->cols + _dst->rows - 1;
const CvMat* wave0 = wave;
double scale = (flags & CV_DXT_SCALE) ? 1./n : 1.;
assert( _src->cols + _src->rows - 1 == n );
int src_step = 1, dst_step = 1;
CvTsComplex64f* w;
assert( CV_ARE_TYPES_EQ(_src,_dst) && _src->rows*_src->cols == _dst->rows*_dst->cols );
if( !wave )
wave = cvTsInitDFTWave( n, flags & CV_DXT_INVERSE );
w = (CvTsComplex64f*)wave->data.db;
if( !CV_IS_MAT_CONT(_src->type) )
src_step = _src->step/CV_ELEM_SIZE(_src->type);
if( !CV_IS_MAT_CONT(_dst->type) )
dst_step = _dst->step/CV_ELEM_SIZE(_dst->type);
if( CV_MAT_TYPE(_src->type) == CV_32FC2 )
{
CvTsComplex32f* dst = (CvTsComplex32f*)_dst->data.fl;
for( i = 0; i < n; i++, dst += dst_step )
{
CvTsComplex32f* src = (CvTsComplex32f*)_src->data.fl;
CvTsComplex64f sum = {0,0};
int delta = i;
k = 0;
for( j = 0; j < n; j++, src += src_step )
{
sum.re += src->re*w[k].re - src->im*w[k].im;
sum.im += src->re*w[k].im + src->im*w[k].re;
k += delta;
k -= (k >= n ? n : 0);
}
dst->re = (float)(sum.re*scale);
dst->im = (float)(sum.im*scale);
}
}
else if( CV_MAT_TYPE(_src->type) == CV_64FC2 )
{
CvTsComplex64f* dst = (CvTsComplex64f*)_dst->data.db;
for( i = 0; i < n; i++, dst += dst_step )
{
CvTsComplex64f* src = (CvTsComplex64f*)_src->data.db;
CvTsComplex64f sum = {0,0};
int delta = i;
k = 0;
for( j = 0; j < n; j++, src += src_step )
{
sum.re += src->re*w[k].re - src->im*w[k].im;
sum.im += src->re*w[k].im + src->im*w[k].re;
k += delta;
k -= (k >= n ? n : 0);
}
dst->re = sum.re*scale;
dst->im = sum.im*scale;
}
}
else
assert(0);
if( !wave0 )
cvReleaseMat( &wave );
}
static void cvTsDFT_2D( const CvMat* src, CvMat* dst, int flags )
{
int i;
CvMat* tmp = cvCreateMat( dst->cols, dst->rows, dst->type );
CvMat* wave = cvTsInitDFTWave( dst->cols, flags & CV_DXT_INVERSE );
// 1. row-wise transform
for( i = 0; i < dst->rows; i++ )
{
CvMat src_row, dst_row;
cvGetRow( src, &src_row, i );
cvGetCol( tmp, &dst_row, i );
cvTsDFT_1D( &src_row, &dst_row, flags, wave );
}
if( !(flags & CV_DXT_ROWS) )
{
if( dst->cols != dst->rows )
{
cvReleaseMat( &wave );
wave = cvTsInitDFTWave( dst->rows, flags & CV_DXT_INVERSE );
}
// 2. column-wise transform
for( i = 0; i < dst->cols; i++ )
{
CvMat src_row, dst_row;
cvGetRow( tmp, &src_row, i );
cvGetCol( dst, &dst_row, i );
cvTsDFT_1D( &src_row, &dst_row, flags, wave );
}
}
else
cvTsTranspose( tmp, dst );
cvReleaseMat( &wave );
cvReleaseMat( &tmp );
}
static CvMat* cvTsInitDCTWave( int n, int inv )
{
int i, k;
double angle = CV_PI*0.5/n;
CvMat* wave = cvCreateMat( n, n, CV_64FC1 );
double scale = sqrt(1./n);
for( k = 0; k < n; k++ )
wave->data.db[k] = scale;
scale *= sqrt(2.);
for( i = 1; i < n; i++ )
for( k = 0; k < n; k++ )
wave->data.db[i*n + k] = scale*cos( angle*i*(2*k + 1) );
if( inv )
cvTsTranspose( wave, wave );
return wave;
}
static void cvTsDCT_1D( const CvMat* _src, CvMat* _dst, int flags, CvMat* wave=0 )
{
int i, j, n = _dst->cols + _dst->rows - 1;
const CvMat* wave0 = wave;
assert( _src->cols + _src->rows - 1 == n);
int src_step = 1, dst_step = 1;
double* w;
assert( CV_ARE_TYPES_EQ(_src,_dst) && _src->rows*_src->cols == _dst->rows*_dst->cols );
if( !wave )
wave = cvTsInitDCTWave( n, flags & CV_DXT_INVERSE );
w = wave->data.db;
if( !CV_IS_MAT_CONT(_src->type) )
src_step = _src->step/CV_ELEM_SIZE(_src->type);
if( !CV_IS_MAT_CONT(_dst->type) )
dst_step = _dst->step/CV_ELEM_SIZE(_dst->type);
if( CV_MAT_TYPE(_src->type) == CV_32FC1 )
{
float *dst = _dst->data.fl;
for( i = 0; i < n; i++, dst += dst_step )
{
const float* src = _src->data.fl;
double sum = 0;
for( j = 0; j < n; j++, src += src_step )
sum += src[0]*w[j];
w += n;
dst[0] = (float)sum;
}
}
else if( CV_MAT_TYPE(_src->type) == CV_64FC1 )
{
double *dst = _dst->data.db;
for( i = 0; i < n; i++, dst += dst_step )
{
const double* src = _src->data.db;
double sum = 0;
for( j = 0; j < n; j++, src += src_step )
sum += src[0]*w[j];
w += n;
dst[0] = sum;
}
}
else
assert(0);
if( !wave0 )
cvReleaseMat( &wave );
}
static void cvTsDCT_2D( const CvMat* src, CvMat* dst, int flags )
{
int i;
CvMat* tmp = cvCreateMat( dst->cols, dst->rows, dst->type );
CvMat* wave = cvTsInitDCTWave( dst->cols, flags & CV_DXT_INVERSE );
// 1. row-wise transform
for( i = 0; i < dst->rows; i++ )
{
CvMat src_row, dst_row;
cvGetRow( src, &src_row, i );
cvGetCol( tmp, &dst_row, i );
cvTsDCT_1D( &src_row, &dst_row, flags, wave );
}
if( !(flags & CV_DXT_ROWS) )
{
if( dst->cols != dst->rows )
{
cvReleaseMat( &wave );
wave = cvTsInitDCTWave( dst->rows, flags & CV_DXT_INVERSE );
}
// 2. column-wise transform
for( i = 0; i < dst->cols; i++ )
{
CvMat src_row, dst_row;
cvGetRow( tmp, &src_row, i );
cvGetCol( dst, &dst_row, i );
cvTsDCT_1D( &src_row, &dst_row, flags, wave );
}
}
else
{
cvTranspose( tmp, dst );
}
cvReleaseMat( &wave );
cvReleaseMat( &tmp );
}
static void cvTsConvertFromCCS( const CvMat* _src0, const CvMat* _src1,
CvMat* _dst, int flags )
{
if( _dst->rows > 1 && (_dst->cols > 1 || (flags & CV_DXT_ROWS)) )
{
int i, count = _dst->rows, len = _dst->cols;
int is_2d = (flags & CV_DXT_ROWS) == 0;
CvMat src0_row, src1_row, dst_row;
for( i = 0; i < count; i++ )
{
int j = !is_2d || i == 0 ? i : count - i;
cvGetRow( _src0, &src0_row, i );
cvGetRow( _src1, &src1_row, j );
cvGetRow( _dst, &dst_row, i );
cvTsConvertFromCCS( &src0_row, &src1_row, &dst_row, 0 );
}
if( is_2d )
{
cvGetCol( _src0, &src0_row, 0 );
cvGetCol( _dst, &dst_row, 0 );
cvTsConvertFromCCS( &src0_row, &src0_row, &dst_row, 0 );
if( (len & 1) == 0 )
{
cvGetCol( _src0, &src0_row, _src0->cols - 1 );
cvGetCol( _dst, &dst_row, len/2 );
cvTsConvertFromCCS( &src0_row, &src0_row, &dst_row, 0 );
}
}
}
else
{
int i, n = _dst->cols + _dst->rows - 1, n2 = (n+1) >> 1;
int cn = CV_MAT_CN(_src0->type);
int src_step = cn, dst_step = 1;
if( !CV_IS_MAT_CONT(_dst->type) )
dst_step = _dst->step/CV_ELEM_SIZE(_dst->type);
if( !CV_IS_MAT_CONT(_src0->type) )
src_step = _src0->step/CV_ELEM_SIZE(_src0->type & CV_MAT_DEPTH_MASK);
if( CV_MAT_DEPTH(_dst->type) == CV_32F )
{
CvTsComplex32f* dst = (CvTsComplex32f*)_dst->data.fl;
const float* src0 = _src0->data.fl;
const float* src1 = _src1->data.fl;
int delta0, delta1;
dst->re = src0[0];
dst->im = 0;
if( (n & 1) == 0 )
{
dst[n2*dst_step].re = src0[(cn == 1 ? n-1 : n2)*src_step];
dst[n2*dst_step].im = 0;
}
delta0 = src_step;
delta1 = delta0 + (cn == 1 ? src_step : 1);
if( cn == 1 )
src_step *= 2;
for( i = 1; i < n2; i++, delta0 += src_step, delta1 += src_step )
{
float t0 = src0[delta0];
float t1 = src0[delta1];
dst[i*dst_step].re = t0;
dst[i*dst_step].im = t1;
t0 = src1[delta0];
t1 = -src1[delta1];
dst[(n-i)*dst_step].re = t0;
dst[(n-i)*dst_step].im = t1;
}
}
else
{
CvTsComplex64f* dst = (CvTsComplex64f*)_dst->data.db;
const double* src0 = _src0->data.db;
const double* src1 = _src1->data.db;
int delta0, delta1;
dst->re = src0[0];
dst->im = 0;
if( (n & 1) == 0 )
{
dst[n2*dst_step].re = src0[(cn == 1 ? n-1 : n2)*src_step];
dst[n2*dst_step].im = 0;
}
delta0 = src_step;
delta1 = delta0 + (cn == 1 ? src_step : 1);
if( cn == 1 )
src_step *= 2;
for( i = 1; i < n2; i++, delta0 += src_step, delta1 += src_step )
{
double t0 = src0[delta0];
double t1 = src0[delta1];
dst[i*dst_step].re = t0;
dst[i*dst_step].im = t1;
t0 = src1[delta0];
t1 = -src1[delta1];
dst[(n-i)*dst_step].re = t0;
dst[(n-i)*dst_step].im = t1;
}
}
}
}
static void cvTsFixCCS( CvMat* mat, int cols, int flags )
{
int i, rows = mat->rows;
int rows2 = flags & CV_DXT_ROWS ? rows : rows/2 + 1, cols2 = cols/2 + 1;
assert( cols2 == mat->cols );
if( CV_MAT_TYPE(mat->type) == CV_32FC2 )
{
for( i = 0; i < rows2; i++ )
{
CvTsComplex32f* row = (CvTsComplex32f*)(mat->data.ptr + mat->step*i);
if( (flags & CV_DXT_ROWS) || i == 0 || (i == rows2 - 1 && rows % 2 == 0) )
{
row[0].im = 0;
if( cols % 2 == 0 )
row[cols2-1].im = 0;
}
else
{
CvTsComplex32f* row2 = (CvTsComplex32f*)(mat->data.ptr + mat->step*(rows-i));
row2[0].re = row[0].re;
row2[0].im = -row[0].im;
if( cols % 2 == 0 )
{
row2[cols2-1].re = row[cols2-1].re;
row2[cols2-1].im = -row[cols2-1].im;
}
}
}
}
else if( CV_MAT_TYPE(mat->type) == CV_64FC2 )
{
for( i = 0; i < rows2; i++ )
{
CvTsComplex64f* row = (CvTsComplex64f*)(mat->data.ptr + mat->step*i);
if( (flags & CV_DXT_ROWS) || i == 0 || (i == rows2 - 1 && rows % 2 == 0) )
{
row[0].im = 0;
if( cols % 2 == 0 )
row[cols2-1].im = 0;
}
else
{
CvTsComplex64f* row2 = (CvTsComplex64f*)(mat->data.ptr + mat->step*(rows-i));
row2[0].re = row[0].re;
row2[0].im = -row[0].im;
if( cols % 2 == 0 )
{
row2[cols2-1].re = row[cols2-1].re;
row2[cols2-1].im = -row[cols2-1].im;
}
}
}
}
}
static const CvSize dxt_sizes[] = {{16,1}, {256,1}, {1024,1}, {65536,1},
{10,1}, {100,1}, {1000,1}, {100000,1}, {256, 256}, {1024,1024}, {-1,-1}};
static const int dxt_depths[] = { CV_32F, CV_64F, -1 };
static const char* dxt_param_names[] = { "size", "depth", "transform_type", 0 };
static const char* dft_transforms[] = { "Fwd_CToC", "Inv_CToC", "Fwd_RToPack", "Inv_PackToR", 0 };
static const char* mulsp_transforms[] = { "Fwd_CToC", "Fwd_RToPack", 0 };
static const char* dct_transforms[] = { "Fwd", "Inv", 0 };
class CxCore_DXTBaseTestImpl : public CvArrTest
{
public:
CxCore_DXTBaseTestImpl( const char* test_name, const char* test_funcs,
bool _allow_complex=false, bool _allow_odd=false,
bool _spectrum_mode=false );
protected:
void get_test_array_types_and_sizes( int test_case_idx, CvSize** sizes, int** types );
int prepare_test_case( int test_case_idx );
double get_success_error_level( int /*test_case_idx*/, int /*i*/, int /*j*/ );
void get_timing_test_array_types_and_sizes( int test_case_idx,
CvSize** sizes, int** types,
CvSize** whole_sizes, bool* are_images );
void print_timing_params( int test_case_idx, char* ptr, int params_left );
int write_default_params( CvFileStorage* fs );
int flags; // transformation flags
bool allow_complex, // whether input/output may be complex or not:
// true for DFT and MulSpectrums, false for DCT
allow_odd, // whether input/output may be have odd (!=1) dimensions:
// true for DFT and MulSpectrums, false for DCT
spectrum_mode, // (2 complex/ccs inputs, 1 complex/ccs output):
// true for MulSpectrums, false for DFT and DCT
inplace, // inplace operation (set for each individual test case)
temp_dst; // use temporary destination (for real->ccs DFT and ccs MulSpectrums)
const char** transform_type_list;
};
CxCore_DXTBaseTestImpl::CxCore_DXTBaseTestImpl( const char* test_name, const char* test_funcs,
bool _allow_complex, bool _allow_odd, bool _spectrum_mode )
: CvArrTest( test_name, test_funcs, "" ),
flags(0), allow_complex(_allow_complex), allow_odd(_allow_odd),
spectrum_mode(_spectrum_mode), inplace(false), temp_dst(false)
{
test_array[INPUT].push(NULL);
if( spectrum_mode )
test_array[INPUT].push(NULL);
test_array[OUTPUT].push(NULL);
test_array[REF_OUTPUT].push(NULL);
test_array[TEMP].push(NULL);
test_array[TEMP].push(NULL);
max_log_array_size = 9;
element_wise_relative_error = spectrum_mode;
size_list = (CvSize*)dxt_sizes;
whole_size_list = 0;
depth_list = (int*)dxt_depths;
cn_list = 0;
transform_type_list = 0;
}
void CxCore_DXTBaseTestImpl::get_test_array_types_and_sizes( int test_case_idx,
CvSize** sizes, int** types )
{
CvRNG* rng = ts->get_rng();
int bits = cvTsRandInt(rng);
int depth = cvTsRandInt(rng)%2 + CV_32F;
int cn = !allow_complex || !(bits & 256) ? 1 : 2;
CvSize size;
CvArrTest::get_test_array_types_and_sizes( test_case_idx, sizes, types );
flags = bits & (CV_DXT_INVERSE | CV_DXT_SCALE | CV_DXT_ROWS | CV_DXT_MUL_CONJ);
if( spectrum_mode )
flags &= ~CV_DXT_INVERSE;
types[TEMP][0] = types[TEMP][1] = types[INPUT][0] =
types[OUTPUT][0] = CV_MAKETYPE(depth, cn);
size = sizes[INPUT][0];
//size.width = size.width % 10 + 1;
//size.height = size.width % 10 + 1;
//size.width = 1;
//flags &= ~CV_DXT_ROWS;
temp_dst = false;
if( flags & CV_DXT_ROWS && (bits&1024) )
{
if( bits&16 )
size.width = 1;
else
size.height = 1;
flags &= ~CV_DXT_ROWS;
}
const int P2_MIN_SIZE = 32;
if( ((bits >> 10) & 1) == 0 )
{
size.width = (size.width / P2_MIN_SIZE)*P2_MIN_SIZE;
size.width = MAX(size.width, 1);
size.height = (size.height / P2_MIN_SIZE)*P2_MIN_SIZE;
size.height = MAX(size.height, 1);
}
if( !allow_odd )
{
if( size.width > 1 && (size.width&1) != 0 )
size.width = (size.width + 1) & -2;
if( size.height > 1 && (size.height&1) != 0 && !(flags & CV_DXT_ROWS) )
size.height = (size.height + 1) & -2;
}
sizes[INPUT][0] = sizes[OUTPUT][0] = size;
sizes[TEMP][0] = sizes[TEMP][1] = cvSize(0,0);
if( spectrum_mode )
{
if( cn == 1 )
{
types[OUTPUT][0] = depth + 8;
sizes[TEMP][0] = size;
}
sizes[INPUT][0] = sizes[INPUT][1] = size;
types[INPUT][1] = types[INPUT][0];
}
else if( /*(cn == 2 && (bits&32)) ||*/ (cn == 1 && allow_complex) )
{
types[TEMP][0] = depth + 8; // CV_??FC2
sizes[TEMP][0] = size;
size = cvSize(size.width/2+1, size.height);
if( flags & CV_DXT_INVERSE )
{
if( cn == 2 )
{
types[OUTPUT][0] = depth;
sizes[INPUT][0] = size;
}
types[TEMP][1] = types[TEMP][0];
sizes[TEMP][1] = sizes[TEMP][0];
}
else
{
if( allow_complex )
types[OUTPUT][0] = depth + 8;
if( cn == 2 )
{
types[INPUT][0] = depth;
types[TEMP][1] = types[TEMP][0];
sizes[TEMP][1] = size;
}
else
{
types[TEMP][1] = depth;
sizes[TEMP][1] = sizes[TEMP][0];
}
temp_dst = true;
}
}
inplace = false;
if( spectrum_mode ||
(!temp_dst && types[INPUT][0] == types[OUTPUT][0]) ||
(temp_dst && types[INPUT][0] == types[TEMP][1]) )
inplace = (bits & 64) != 0;
types[REF_OUTPUT][0] = types[OUTPUT][0];
sizes[REF_OUTPUT][0] = sizes[OUTPUT][0];
}
void CxCore_DXTBaseTestImpl::get_timing_test_array_types_and_sizes( int test_case_idx,
CvSize** sizes, int** types,
CvSize** whole_sizes, bool* are_images )
{
CvArrTest::get_timing_test_array_types_and_sizes( test_case_idx,
sizes, types, whole_sizes, are_images );
const char* transform_type = cvReadString( find_timing_param( "transform_type" ), "" );
int depth = CV_MAT_DEPTH(types[INPUT][0]);
int in_type = depth, out_type = depth;
if( strcmp( transform_type, "Fwd_CToC" ) == 0 || strcmp( transform_type, "Inv_CToC" ) == 0 )
in_type = out_type = CV_MAKETYPE(depth,2);
if( strncmp( transform_type, "Fwd", 3 ) == 0 )
flags = CV_DXT_FORWARD;
else
flags = CV_DXT_INV_SCALE;
types[INPUT][0] = in_type;
if( spectrum_mode )
types[INPUT][1] = in_type;
types[OUTPUT][0] = types[REF_OUTPUT][0] = out_type;
sizes[TEMP][0] = cvSize(0,0);
inplace = false;
}
int CxCore_DXTBaseTestImpl::write_default_params( CvFileStorage* fs )
{
int code = CvArrTest::write_default_params(fs);
if( code < 0 || ts->get_testing_mode() != CvTS::TIMING_MODE )
return code;
write_string_list( fs, "transform_type", transform_type_list );
return code;
}
void CxCore_DXTBaseTestImpl::print_timing_params( int test_case_idx, char* ptr, int params_left )
{
sprintf( ptr, "%s,", cvReadString( find_timing_param("transform_type"), "" ) );
ptr += strlen(ptr);
params_left--;
CvArrTest::print_timing_params( test_case_idx, ptr, params_left );
}
double CxCore_DXTBaseTestImpl::get_success_error_level( int test_case_idx, int i, int j )
{
return CvArrTest::get_success_error_level( test_case_idx, i, j );
}
int CxCore_DXTBaseTestImpl::prepare_test_case( int test_case_idx )
{
int code = CvArrTest::prepare_test_case( test_case_idx );
if( code > 0 && ts->get_testing_mode() == CvTS::CORRECTNESS_CHECK_MODE )
{
int in_type = CV_MAT_TYPE(test_mat[INPUT][0].type);
int out_type = CV_MAT_TYPE(test_mat[OUTPUT][0].type);
if( CV_MAT_CN(in_type) == 2 && CV_MAT_CN(out_type) == 1 )
cvTsFixCCS( &test_mat[INPUT][0], test_mat[OUTPUT][0].cols, flags );
if( inplace )
cvTsCopy( &test_mat[INPUT][test_case_idx & (int)spectrum_mode],
temp_dst ? &test_mat[TEMP][1] :
in_type == out_type ? &test_mat[OUTPUT][0] :
&test_mat[TEMP][0] );
}
return code;
}
CxCore_DXTBaseTestImpl dxt_test( "dxt", "" );
class CxCore_DXTBaseTest : public CxCore_DXTBaseTestImpl
{
public:
CxCore_DXTBaseTest( const char* test_name, const char* test_funcs,
bool _allow_complex=false, bool _allow_odd=false,
bool _spectrum_mode=false );
};
CxCore_DXTBaseTest::CxCore_DXTBaseTest( const char* test_name, const char* test_funcs,
bool _allow_complex, bool _allow_odd, bool _spectrum_mode )
: CxCore_DXTBaseTestImpl( test_name, test_funcs, _allow_complex, _allow_odd, _spectrum_mode )
{
size_list = 0;
depth_list = 0;
default_timing_param_names = dxt_param_names;
transform_type_list = dft_transforms;
}
////////////////////// FFT ////////////////////////
class CxCore_DFTTest : public CxCore_DXTBaseTest
{
public:
CxCore_DFTTest();
protected:
void run_func();
void prepare_to_validation( int test_case_idx );
};
CxCore_DFTTest::CxCore_DFTTest() : CxCore_DXTBaseTest( "dxt-dft", "cvDFT", true, true, false )
{
}
void CxCore_DFTTest::run_func()
{
CvArr* dst = temp_dst ? test_array[TEMP][1] : test_array[OUTPUT][0];
CvArr* src = inplace ? dst : test_array[INPUT][0];
if(!(flags & CV_DXT_INVERSE))
cvDFT( src, dst, flags );
else
{
cv::Mat _src = cv::cvarrToMat(src), _dst = cv::cvarrToMat(dst);
idft(_src, _dst, flags & ~CV_DXT_INVERSE);
}
}
void CxCore_DFTTest::prepare_to_validation( int /*test_case_idx*/ )
{
CvMat* src = &test_mat[INPUT][0];
CvMat* dst = &test_mat[REF_OUTPUT][0];
CvMat* tmp_src = src;
CvMat* tmp_dst = dst;
int src_cn = CV_MAT_CN( src->type );
int dst_cn = CV_MAT_CN( dst->type );
if( src_cn != 2 || dst_cn != 2 )
{
tmp_src = &test_mat[TEMP][0];
if( !(flags & CV_DXT_INVERSE ) )
{
CvMat* cvdft_dst = &test_mat[TEMP][1];
cvTsConvertFromCCS( cvdft_dst, cvdft_dst,
&test_mat[OUTPUT][0], flags );
cvTsZero( tmp_src );
cvTsInsert( src, tmp_src, 0 );
}
else
{
cvTsConvertFromCCS( src, src, tmp_src, flags );
tmp_dst = &test_mat[TEMP][1];
}
}
if( src->rows == 1 || (src->cols == 1 && !(flags & CV_DXT_ROWS)) )
cvTsDFT_1D( tmp_src, tmp_dst, flags );
else
cvTsDFT_2D( tmp_src, tmp_dst, flags );
if( tmp_dst != dst )
cvTsExtract( tmp_dst, dst, 0 );
}
CxCore_DFTTest dft_test;
////////////////////// DCT ////////////////////////
class CxCore_DCTTest : public CxCore_DXTBaseTest
{
public:
CxCore_DCTTest();
protected:
void run_func();
void prepare_to_validation( int test_case_idx );
};
CxCore_DCTTest::CxCore_DCTTest() : CxCore_DXTBaseTest( "dxt-dct", "cvDCT", false, false, false )
{
transform_type_list = dct_transforms;
}
void CxCore_DCTTest::run_func()
{
CvArr* dst = test_array[OUTPUT][0];
CvArr* src = inplace ? dst : test_array[INPUT][0];
if(!(flags & CV_DXT_INVERSE))
cvDCT( src, dst, flags );
else
{
cv::Mat _src = cv::cvarrToMat(src), _dst = cv::cvarrToMat(dst);
idct(_src, _dst, flags & ~CV_DXT_INVERSE);
}
}
void CxCore_DCTTest::prepare_to_validation( int /*test_case_idx*/ )
{
CvMat* src = &test_mat[INPUT][0];
CvMat* dst = &test_mat[REF_OUTPUT][0];
if( src->rows == 1 || (src->cols == 1 && !(flags & CV_DXT_ROWS)) )
cvTsDCT_1D( src, dst, flags );
else
cvTsDCT_2D( src, dst, flags );
}
CxCore_DCTTest dct_test;
////////////////////// MulSpectrums ////////////////////////
class CxCore_MulSpectrumsTest : public CxCore_DXTBaseTest
{
public:
CxCore_MulSpectrumsTest();
protected:
void run_func();
void prepare_to_validation( int test_case_idx );
};
CxCore_MulSpectrumsTest::CxCore_MulSpectrumsTest() :
CxCore_DXTBaseTest( "dxt-mulspectrums", "cvMulSpectrums", true, true, true )
{
transform_type_list = mulsp_transforms;
}
void CxCore_MulSpectrumsTest::run_func()
{
CvArr* dst = test_array[TEMP].size() > 0 && test_array[TEMP][0] ?
test_array[TEMP][0] : test_array[OUTPUT][0];
CvArr *src1 = test_array[INPUT][0], *src2 = test_array[INPUT][1];
if( inplace )
{
if( ts->get_current_test_info()->test_case_idx & 1 )
src2 = dst;
else
src1 = dst;
}
cvMulSpectrums( src1, src2, dst, flags );
}
static void cvTsMulComplex( const CvMat* A, const CvMat* B, CvMat* C, int flags )
{
int i, j, depth = CV_MAT_DEPTH(A->type), cols = A->cols*2;
assert( CV_ARE_SIZES_EQ(A,B) && CV_ARE_SIZES_EQ(B,C) &&
CV_ARE_TYPES_EQ(A,B) && CV_ARE_TYPES_EQ(B,C) &&
CV_MAT_CN(A->type) == 2 && CV_MAT_DEPTH(A->type) >= CV_32F );
for( i = 0; i < C->rows; i++ )
{
if( depth == CV_32F )
{
const float* a = (float*)(A->data.ptr + A->step*i);
const float* b = (float*)(B->data.ptr + B->step*i);
float* c = (float*)(C->data.ptr + C->step*i);
if( !(flags & CV_DXT_MUL_CONJ) )
for( j = 0; j < cols; j += 2 )
{
double re = (double)a[j]*b[j] - (double)a[j+1]*b[j+1];
double im = (double)a[j+1]*b[j] + (double)a[j]*b[j+1];
c[j] = (float)re;
c[j+1] = (float)im;
}
else
for( j = 0; j < cols; j += 2 )
{
double re = (double)a[j]*b[j] + (double)a[j+1]*b[j+1];
double im = (double)a[j+1]*b[j] - (double)a[j]*b[j+1];
c[j] = (float)re;
c[j+1] = (float)im;
}
}
else
{
const double* a = (double*)(A->data.ptr + A->step*i);
const double* b = (double*)(B->data.ptr + B->step*i);
double* c = (double*)(C->data.ptr + C->step*i);
if( !(flags & CV_DXT_MUL_CONJ) )
for( j = 0; j < cols; j += 2 )
{
double re = a[j]*b[j] - a[j+1]*b[j+1];
double im = a[j+1]*b[j] + a[j]*b[j+1];
c[j] = re;
c[j+1] = im;
}
else
for( j = 0; j < cols; j += 2 )
{
double re = a[j]*b[j] + a[j+1]*b[j+1];
double im = a[j+1]*b[j] - a[j]*b[j+1];
c[j] = re;
c[j+1] = im;
}
}
}
}
void CxCore_MulSpectrumsTest::prepare_to_validation( int /*test_case_idx*/ )
{
CvMat* src1 = &test_mat[INPUT][0];
CvMat* src2 = &test_mat[INPUT][1];
CvMat* dst = &test_mat[OUTPUT][0];
CvMat* dst0 = &test_mat[REF_OUTPUT][0];
CvMat* temp = test_array[TEMP].size() > 0 && test_array[TEMP][0] ? &test_mat[TEMP][0] : 0;
int cn = CV_MAT_CN(src1->type);
if( cn == 1 )
{
cvTsConvertFromCCS( src1, src1, dst, flags );
cvTsConvertFromCCS( src2, src2, dst0, flags );
src1 = dst;
src2 = dst0;
}
cvTsMulComplex( src1, src2, dst0, flags );
if( cn == 1 )
{
assert( temp != 0 );
cvTsConvertFromCCS( temp, temp, dst, flags );
}
}
CxCore_MulSpectrumsTest mulspectrums_test;
/* End of file. */