| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "shakirova_e_sobel_edge_detection/omp/include/ops_omp.hpp" | ||
| 2 | |||
| 3 | #include <algorithm> | ||
| 4 | #include <cmath> | ||
| 5 | #include <cstddef> | ||
| 6 | #include <vector> | ||
| 7 | |||
| 8 | #include "shakirova_e_sobel_edge_detection/common/include/common.hpp" | ||
| 9 | |||
| 10 | namespace shakirova_e_sobel_edge_detection { | ||
| 11 | |||
| 12 |
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24 | ShakirovaESobelEdgeDetectionOMP::ShakirovaESobelEdgeDetectionOMP(const InType &in) { |
| 13 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 14 | GetInput() = in; | ||
| 15 | GetOutput().clear(); | ||
| 16 | 24 | } | |
| 17 | |||
| 18 |
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24 | bool ShakirovaESobelEdgeDetectionOMP::ValidationImpl() { |
| 19 | 24 | return GetInput().IsValid(); | |
| 20 | } | ||
| 21 | |||
| 22 | 24 | bool ShakirovaESobelEdgeDetectionOMP::PreProcessingImpl() { | |
| 23 | const auto &img = GetInput(); | ||
| 24 | 24 | width_ = img.width; | |
| 25 | 24 | height_ = img.height; | |
| 26 | 24 | input_ = img.pixels; | |
| 27 | |||
| 28 | 24 | GetOutput().assign(static_cast<size_t>(width_) * static_cast<size_t>(height_), 0); | |
| 29 | 24 | return true; | |
| 30 | } | ||
| 31 | |||
| 32 | 24 | bool ShakirovaESobelEdgeDetectionOMP::RunImpl() { | |
| 33 | auto &out = GetOutput(); | ||
| 34 | 24 | const int h = height_; | |
| 35 | 24 | const int w = width_; | |
| 36 | const int *inp = input_.data(); | ||
| 37 | |||
| 38 | 24 | #pragma omp parallel for default(none) shared(out, inp) firstprivate(h, w) schedule(static) | |
| 39 | for (int row = 1; row < h - 1; ++row) { | ||
| 40 | const int *prev = inp + (static_cast<ptrdiff_t>(row - 1) * w); | ||
| 41 | const int *curr = inp + (static_cast<ptrdiff_t>(row) * w); | ||
| 42 | const int *next = inp + (static_cast<ptrdiff_t>(row + 1) * w); | ||
| 43 | |||
| 44 | for (int col = 1; col < w - 1; ++col) { | ||
| 45 | const int gx = | ||
| 46 | -prev[col - 1] + prev[col + 1] - (2 * curr[col - 1]) + (2 * curr[col + 1]) - next[col - 1] + next[col + 1]; | ||
| 47 | |||
| 48 | const int gy = -prev[col - 1] - (2 * prev[col]) - prev[col + 1] + next[col - 1] + (2 * next[col]) + next[col + 1]; | ||
| 49 | |||
| 50 | const int abs_gx = std::abs(gx); | ||
| 51 | const int abs_gy = std::abs(gy); | ||
| 52 | const int magnitude = (std::max(abs_gx, abs_gy) * 123 + std::min(abs_gx, abs_gy) * 51) >> 7; | ||
| 53 | out[(row * w) + col] = std::min(magnitude, 255); | ||
| 54 | } | ||
| 55 | } | ||
| 56 | |||
| 57 | 24 | return true; | |
| 58 | } | ||
| 59 | |||
| 60 | 24 | bool ShakirovaESobelEdgeDetectionOMP::PostProcessingImpl() { | |
| 61 | 24 | return true; | |
| 62 | } | ||
| 63 | |||
| 64 | } // namespace shakirova_e_sobel_edge_detection | ||
| 65 |