1 #ifndef COMPLEX_MAT_HPP_213123048309482094
2 #define COMPLEX_MAT_HPP_213123048309482094
4 #include <opencv2/opencv.hpp>
9 #ifdef TEMPLATE_COMPLEXMAT
10 template <typename T> class ComplexMat_ {
17 ComplexMat_() : cols(0), rows(0), n_channels(0) {}
18 ComplexMat_(uint _rows, uint _cols, uint _n_channels) : cols(_cols), rows(_rows), n_channels(_n_channels)
20 p_data.resize(n_channels * cols * rows);
23 ComplexMat_(uint _rows, uint _cols, uint _n_channels, uint _n_scales)
24 : cols(_cols), rows(_rows), n_channels(_n_channels), n_scales(_n_scales)
26 p_data.resize(n_channels * cols * rows);
29 // assuming that mat has 2 channels (real, img)
30 ComplexMat_(const cv::Mat &mat) : cols(uint(mat.cols)), rows(uint(mat.rows)), n_channels(1)
32 p_data = convert(mat);
35 void create(uint _rows, uint _cols, uint _n_channels)
39 n_channels = _n_channels;
40 p_data.resize(n_channels * cols * rows);
43 void create(uint _rows, uint _cols, uint _n_channels, uint _n_scales)
47 n_channels = _n_channels;
49 p_data.resize(n_channels * cols * rows);
51 // cv::Mat API compatibility
52 cv::Size size() { return cv::Size(cols, rows); }
53 int channels() { return n_channels; }
54 int channels() const { return n_channels; }
56 // assuming that mat has 2 channels (real, imag)
57 void set_channel(int idx, const cv::Mat &mat)
59 assert(idx >= 0 && idx < n_channels);
60 for (int i = 0; i < rows; ++i) {
61 const std::complex<T> *row = mat.ptr<std::complex<T>>(i);
62 for (int j = 0; j < cols; ++j)
63 p_data[idx * rows * cols + i * cols + j] = row[j];
69 int n_channels_per_scale = n_channels / n_scales;
71 for (int i = 0; i < n_channels_per_scale; ++i) {
72 for (auto lhs = p_data.begin() + i * rows * cols; lhs != p_data.begin() + (i + 1) * rows * cols; ++lhs)
73 sum_sqr_norm += lhs->real() * lhs->real() + lhs->imag() * lhs->imag();
75 sum_sqr_norm = sum_sqr_norm / static_cast<T>(cols * rows);
79 void sqr_norm(T *sums_sqr_norms) const
81 int n_channels_per_scale = n_channels / n_scales;
82 int scale_offset = n_channels_per_scale * rows * cols;
84 for (uint scale = 0; scale < n_scales; ++scale) {
86 for (int i = 0; i < n_channels_per_scale; ++i)
87 for (auto lhs = p_data.begin() + i * rows * cols + scale * scale_offset;
88 lhs != p_data.begin() + (i + 1) * rows * cols + scale * scale_offset; ++lhs)
89 sum_sqr_norm += lhs->real() * lhs->real() + lhs->imag() * lhs->imag();
90 sums_sqr_norms[scale] = sum_sqr_norm / static_cast<T>(cols * rows);
95 ComplexMat_<T> sqr_mag() const
97 return mat_const_operator([](std::complex<T> &c) { c = c.real() * c.real() + c.imag() * c.imag(); });
100 ComplexMat_<T> conj() const
102 return mat_const_operator([](std::complex<T> &c) { c = std::complex<T>(c.real(), -c.imag()); });
105 ComplexMat_<T> sum_over_channels() const
107 assert(p_data.size() > 1);
109 int n_channels_per_scale = n_channels / n_scales;
110 int scale_offset = n_channels_per_scale * rows * cols;
112 ComplexMat_<T> result(this->rows, this->cols, n_scales);
113 for (uint scale = 0; scale < n_scales; ++scale) {
114 std::copy(p_data.begin() + scale * scale_offset, p_data.begin() + rows * cols + scale * scale_offset,
115 result.p_data.begin() + scale * rows * cols);
116 for (int i = 1; i < n_channels_per_scale; ++i) {
117 std::transform(result.p_data.begin() + scale * rows * cols,
118 result.p_data.begin() + (scale + 1) * rows * cols,
119 p_data.begin() + i * rows * cols + scale * scale_offset,
120 result.p_data.begin() + scale * rows * cols, std::plus<std::complex<T>>());
126 // return 2 channels (real, imag) for first complex channel
127 cv::Mat to_cv_mat() const
129 assert(p_data.size() >= 1);
130 return channel_to_cv_mat(0);
132 // return a vector of 2 channels (real, imag) per one complex channel
133 std::vector<cv::Mat> to_cv_mat_vector() const
135 std::vector<cv::Mat> result;
136 result.reserve(n_channels);
138 for (int i = 0; i < n_channels; ++i)
139 result.push_back(channel_to_cv_mat(i));
144 std::complex<T> *get_p_data() const { return p_data.data(); }
146 // element-wise per channel multiplication, division and addition
147 ComplexMat_<T> operator*(const ComplexMat_<T> &rhs) const
149 return mat_mat_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs *= c_rhs; }, rhs);
151 ComplexMat_<T> operator/(const ComplexMat_<T> &rhs) const
153 return mat_mat_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs /= c_rhs; }, rhs);
155 ComplexMat_<T> operator+(const ComplexMat_<T> &rhs) const
157 return mat_mat_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs += c_rhs; }, rhs);
160 // multiplying or adding constant
161 ComplexMat_<T> operator*(const T &rhs) const
163 return mat_const_operator([&rhs](std::complex<T> &c) { c *= rhs; });
165 ComplexMat_<T> operator+(const T &rhs) const
167 return mat_const_operator([&rhs](std::complex<T> &c) { c += rhs; });
170 // multiplying element-wise multichannel by one channel mats (rhs mat is with one channel)
171 ComplexMat_<T> mul(const ComplexMat_<T> &rhs) const
173 return matn_mat1_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs *= c_rhs; }, rhs);
176 // multiplying element-wise multichannel by one channel mats (rhs mat is with multiple channel)
177 ComplexMat_<T> mul2(const ComplexMat_<T> &rhs) const
179 return matn_mat2_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs *= c_rhs; }, rhs);
183 friend std::ostream &operator<<(std::ostream &os, const ComplexMat_<T> &mat)
185 // for (int i = 0; i < mat.n_channels; ++i){
186 for (int i = 0; i < 1; ++i) {
187 os << "Channel " << i << std::endl;
188 for (uint j = 0; j < mat.rows; ++j) {
189 for (uint k = 0; k < mat.cols - 1; ++k)
190 os << mat.p_data[j * mat.cols + k] << ", ";
191 os << mat.p_data[j * mat.cols + mat.cols - 1] << std::endl;
198 mutable std::vector<std::complex<T>> p_data;
200 // convert 2 channel mat (real, imag) to vector row-by-row
201 std::vector<std::complex<T>> convert(const cv::Mat &mat)
203 std::vector<std::complex<T>> result;
204 result.reserve(mat.cols * mat.rows);
205 for (int y = 0; y < mat.rows; ++y) {
206 const T *row_ptr = mat.ptr<T>(y);
207 for (int x = 0; x < 2 * mat.cols; x += 2) {
208 result.push_back(std::complex<T>(row_ptr[x], row_ptr[x + 1]));
214 ComplexMat_<T> mat_mat_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
215 const ComplexMat_<T> &mat_rhs) const
217 assert(mat_rhs.n_channels == n_channels && mat_rhs.cols == cols && mat_rhs.rows == rows);
219 ComplexMat_<T> result = *this;
220 for (uint i = 0; i < n_channels; ++i) {
221 auto lhs = result.p_data.begin() + i * rows * cols;
222 auto rhs = mat_rhs.p_data.begin() + i * rows * cols;
223 for (; lhs != result.p_data.begin() + (i + 1) * rows * cols; ++lhs, ++rhs)
229 ComplexMat_<T> matn_mat1_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
230 const ComplexMat_<T> &mat_rhs) const
232 assert(mat_rhs.n_channels == 1 && mat_rhs.cols == cols && mat_rhs.rows == rows);
234 ComplexMat_<T> result = *this;
235 for (uint i = 0; i < n_channels; ++i) {
236 auto lhs = result.p_data.begin() + i * rows * cols;
237 auto rhs = mat_rhs.p_data.begin();
238 for (; lhs != result.p_data.begin() + (i + 1) * rows * cols; ++lhs, ++rhs)
244 ComplexMat_<T> matn_mat2_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
245 const ComplexMat_<T> &mat_rhs) const
247 assert(mat_rhs.n_channels == n_channels / n_scales && mat_rhs.cols == cols && mat_rhs.rows == rows);
249 int n_channels_per_scale = n_channels / n_scales;
250 int scale_offset = n_channels_per_scale * rows * cols;
251 ComplexMat_<T> result = *this;
252 for (uint i = 0; i < n_scales; ++i) {
253 for (int j = 0; j < n_channels_per_scale; ++j) {
254 auto lhs = result.p_data.begin() + (j * rows * cols) + (i * scale_offset);
255 auto rhs = mat_rhs.p_data.begin() + (j * rows * cols);
256 for (; lhs != result.p_data.begin() + ((j + 1) * rows * cols) + (i * scale_offset); ++lhs, ++rhs)
263 ComplexMat_<T> mat_const_operator(const std::function<void(std::complex<T> &c_rhs)> &op) const
265 ComplexMat_<T> result = *this;
266 for (uint i = 0; i < n_channels; ++i)
267 for (auto lhs = result.p_data.begin() + i * rows * cols;
268 lhs != result.p_data.begin() + (i + 1) * rows * cols; ++lhs)
273 cv::Mat channel_to_cv_mat(int channel_id) const
275 cv::Mat result(rows, cols, CV_32FC2);
276 for (int y = 0; y < rows; ++y) {
277 std::complex<T> *row_ptr = result.ptr<std::complex<T>>(y);
278 for (int x = 0; x < cols; ++x) {
279 row_ptr[x] = p_data[channel_id * rows * cols + y * cols + x];
286 typedef ComplexMat_<float> ComplexMat;
296 ComplexMat(int _rows, int _cols, int _n_channels);
297 ComplexMat(int _rows, int _cols, int _n_channels, int _n_scales);
298 ComplexMat(const cv::Mat &mat);
300 void create(int _rows, int _cols, int _n_channels);
302 void create(int _rows, int _cols, int _n_channels, int _n_scales);
303 // cv::Mat API compatibility
306 int channels() const;
308 // assuming that mat has 2 channels (real, imag)
309 void set_channel(int idx, const cv::Mat &mat);
312 void sqr_norm(float *sums_sqr_norms) const;
314 ComplexMat sqr_mag() const;
316 ComplexMat conj() const;
318 ComplexMat sum_over_channels() const;
320 // return 2 channels (real, imag) for first complex channel
321 cv::Mat to_cv_mat() const;
322 // return a vector of 2 channels (real, imag) per one complex channel
323 std::vector<cv::Mat> to_cv_mat_vector() const;
325 std::complex<float> *get_p_data() const;
327 // element-wise per channel multiplication, division and addition
328 ComplexMat operator*(const ComplexMat &rhs) const;
329 ComplexMat operator/(const ComplexMat &rhs) const;
330 ComplexMat operator+(const ComplexMat &rhs) const;
332 // multiplying or adding constant
333 ComplexMat operator*(const float &rhs) const;
334 ComplexMat operator+(const float &rhs) const;
336 // multiplying element-wise multichannel by one channel mats (rhs mat is with one channel)
337 ComplexMat mul(const ComplexMat &rhs) const;
339 // multiplying element-wise multichannel by one channel mats (rhs mat is with multiple channel)
340 ComplexMat mul2(const ComplexMat &rhs) const;
343 friend std::ostream &operator<<(std::ostream &os, const ComplexMat &mat)
345 // for (int i = 0; i < mat.n_channels; ++i){
346 for (int i = 0; i < 1; ++i) {
347 os << "Channel " << i << std::endl;
348 for (int j = 0; j < mat.rows; ++j) {
349 for (int k = 0; k < mat.cols - 1; ++k)
350 os << mat.p_data[j * mat.cols + k] << ", ";
351 os << mat.p_data[j * mat.cols + mat.cols - 1] << std::endl;
358 mutable std::vector<std::complex<float>> p_data;
360 // convert 2 channel mat (real, imag) to vector row-by-row
361 std::vector<std::complex<float>> convert(const cv::Mat &mat);
363 ComplexMat mat_mat_operator(void (*op)(std::complex<float> &c_lhs, const std::complex<float> &c_rhs),
364 const ComplexMat &mat_rhs) const;
365 ComplexMat matn_mat1_operator(void (*op)(std::complex<float> &c_lhs, const std::complex<float> &c_rhs),
366 const ComplexMat &mat_rhs) const;
367 ComplexMat matn_mat2_operator(void (*op)(std::complex<float> &c_lhs, const std::complex<float> &c_rhs),
368 const ComplexMat &mat_rhs) const;
369 ComplexMat mat_const_operator(const std::function<void(std::complex<float> &c_rhs)> &op) const;
371 cv::Mat channel_to_cv_mat(int channel_id) const;
375 #endif // COMPLEX_MAT_HPP_213123048309482094