1 #ifndef COMPLEX_MAT_HPP_213123048309482094
2 #define COMPLEX_MAT_HPP_213123048309482094
4 #include <opencv2/opencv.hpp>
23 ComplexMat_(uint _rows, uint _cols, uint _n_channels, uint _n_scales = 1)
24 : cols(_cols), rows(_rows), n_channels(_n_channels * _n_scales), n_scales(_n_scales),
25 p_data(n_channels * cols * rows) {}
26 ComplexMat_(cv::Size size, uint _n_channels, uint _n_scales = 1)
27 : cols(size.width), rows(size.height), n_channels(_n_channels * _n_scales), n_scales(_n_scales)
28 , p_data(n_channels * cols * rows) {}
30 // assuming that mat has 2 channels (real, img)
31 ComplexMat_(const cv::Mat &mat) : cols(uint(mat.cols)), rows(uint(mat.rows)), n_channels(1), n_scales(1)
32 , p_data(n_channels * cols * rows)
34 memcpy(p_data.hostMem(), mat.ptr<std::complex<T>>(), mat.total() * mat.elemSize());
37 static ComplexMat_ same_size(const ComplexMat_ &o)
39 return ComplexMat_(o.rows, o.cols, o.n_channels / o.n_scales, o.n_scales);
42 // cv::Mat API compatibility
43 cv::Size size() const { return cv::Size(cols, rows); }
44 uint channels() const { return n_channels; }
46 // assuming that mat has 2 channels (real, imag)
47 void set_channel(uint idx, const cv::Mat &mat)
49 assert(idx < n_channels);
50 for (uint i = 0; i < rows; ++i) {
51 const std::complex<T> *row = mat.ptr<std::complex<T>>(i);
52 for (uint j = 0; j < cols; ++j)
53 p_data.hostMem()[idx * rows * cols + i * cols + j] = row[j];
59 void sqr_norm(DynMem_<T> &result) const;
61 ComplexMat_ sqr_mag() const;
63 ComplexMat_ conj() const;
65 ComplexMat_ sum_over_channels() const;
67 // return 2 channels (real, imag) for first complex channel
68 cv::Mat to_cv_mat() const
70 assert(p_data.num_elem >= 1);
71 return channel_to_cv_mat(0);
73 // return a vector of 2 channels (real, imag) per one complex channel
74 std::vector<cv::Mat> to_cv_mat_vector() const
76 std::vector<cv::Mat> result;
77 result.reserve(n_channels);
79 for (uint i = 0; i < n_channels; ++i)
80 result.push_back(channel_to_cv_mat(i));
85 std::complex<T> *get_p_data() { return p_data.hostMem(); }
86 const std::complex<T> *get_p_data() const { return p_data.hostMem(); }
89 cufftComplex *get_dev_data() { return (cufftComplex*)p_data.deviceMem(); }
90 const cufftComplex *get_dev_data() const { return (cufftComplex*)p_data.deviceMem(); }
93 // element-wise per channel multiplication, division and addition
94 ComplexMat_ operator*(const ComplexMat_ &rhs) const;
95 ComplexMat_ operator/(const ComplexMat_ &rhs) const;
96 ComplexMat_ operator+(const ComplexMat_ &rhs) const;
98 // multiplying or adding constant
99 ComplexMat_ operator*(const T &rhs) const;
100 ComplexMat_ operator+(const T &rhs) const;
102 // multiplying element-wise multichannel by one channel mats (rhs mat is with one channel)
103 ComplexMat_ mul(const ComplexMat_ &rhs) const;
105 // multiplying element-wise multichannel mats - same as operator*(ComplexMat), but without allocating memory for the result
106 ComplexMat_ muln(const ComplexMat_ &rhs) const
108 return mat_mat_operator([](std::complex<T> &c_lhs, const std::complex<T> &c_rhs) { c_lhs *= c_rhs; }, rhs);
112 friend std::ostream &operator<<(std::ostream &os, const ComplexMat_ &mat)
114 // for (int i = 0; i < mat.n_channels; ++i){
115 for (int i = 0; i < 1; ++i) {
116 os << "Channel " << i << std::endl;
117 for (uint j = 0; j < mat.rows; ++j) {
118 for (uint k = 0; k < mat.cols - 1; ++k)
119 os << mat.p_data[j * mat.cols + k] << ", ";
120 os << mat.p_data[j * mat.cols + mat.cols - 1] << std::endl;
127 DynMem_<std::complex<T>> p_data;
129 // convert 2 channel mat (real, imag) to vector row-by-row
130 std::vector<std::complex<T>> convert(const cv::Mat &mat)
132 std::vector<std::complex<T>> result;
133 result.reserve(mat.cols * mat.rows);
134 for (int y = 0; y < mat.rows; ++y) {
135 const T *row_ptr = mat.ptr<T>(y);
136 for (int x = 0; x < 2 * mat.cols; x += 2) {
137 result.push_back(std::complex<T>(row_ptr[x], row_ptr[x + 1]));
143 ComplexMat_ mat_mat_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
144 const ComplexMat_ &mat_rhs) const
146 assert(mat_rhs.n_channels == n_channels/n_scales && mat_rhs.cols == cols && mat_rhs.rows == rows);
148 ComplexMat_ result = *this;
149 for (uint s = 0; s < n_scales; ++s) {
150 auto lhs = result.p_data.hostMem() + (s * n_channels/n_scales * rows * cols);
151 auto rhs = mat_rhs.p_data.hostMem();
152 for (uint i = 0; i < n_channels/n_scales * rows * cols; ++i)
153 op(*(lhs + i), *(rhs + i));
158 ComplexMat_ matn_mat1_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
159 const ComplexMat_ &mat_rhs) const
161 assert(mat_rhs.n_channels == 1 && mat_rhs.cols == cols && mat_rhs.rows == rows);
163 ComplexMat_ result = *this;
164 for (uint i = 0; i < n_channels; ++i) {
165 auto lhs = result.p_data.hostMem() + i * rows * cols;
166 auto rhs = mat_rhs.p_data.hostMem();
167 for (; lhs != result.p_data.hostMem() + (i + 1) * rows * cols; ++lhs, ++rhs)
173 ComplexMat_ matn_mat2_operator(void (*op)(std::complex<T> &c_lhs, const std::complex<T> &c_rhs),
174 const ComplexMat_ &mat_rhs) const
176 assert(mat_rhs.n_channels == n_channels / n_scales && mat_rhs.cols == cols && mat_rhs.rows == rows);
178 int n_channels_per_scale = n_channels / n_scales;
179 int scale_offset = n_channels_per_scale * rows * cols;
180 ComplexMat_ result = *this;
181 for (uint i = 0; i < n_scales; ++i) {
182 for (int j = 0; j < n_channels_per_scale; ++j) {
183 auto lhs = result.p_data.hostMem() + (j * rows * cols) + (i * scale_offset);
184 auto rhs = mat_rhs.p_data.hostMem() + (j * rows * cols);
185 for (; lhs != result.p_data.hostMem() + ((j + 1) * rows * cols) + (i * scale_offset); ++lhs, ++rhs)
192 ComplexMat_ mat_const_operator(const std::function<void(std::complex<T> &c_rhs)> &op) const
194 ComplexMat_ result = *this;
195 for (uint i = 0; i < n_channels; ++i)
196 for (auto lhs = result.p_data.hostMem() + i * rows * cols;
197 lhs != result.p_data.hostMem() + (i + 1) * rows * cols; ++lhs)
202 cv::Mat channel_to_cv_mat(int channel_id) const
204 cv::Mat result(rows, cols, CV_32FC2);
205 for (uint y = 0; y < rows; ++y) {
206 std::complex<T> *row_ptr = result.ptr<std::complex<T>>(y);
207 for (uint x = 0; x < cols; ++x) {
208 row_ptr[x] = p_data[channel_id * rows * cols + y * cols + x];
215 typedef ComplexMat_ ComplexMat;
217 #endif // COMPLEX_MAT_HPP_213123048309482094