| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include "pylaeva_s_inc_contrast_img_by_lsh/tbb/include/ops_tbb.hpp" | ||
| 2 | |||
| 3 | #include <tbb/tbb.h> | ||
| 4 | |||
| 5 | #include <algorithm> | ||
| 6 | #include <cmath> | ||
| 7 | #include <cstddef> | ||
| 8 | #include <cstdint> | ||
| 9 | #include <utility> | ||
| 10 | #include <vector> | ||
| 11 | |||
| 12 | #include "oneapi/tbb/parallel_for.h" | ||
| 13 | #include "pylaeva_s_inc_contrast_img_by_lsh/common/include/common.hpp" | ||
| 14 | |||
| 15 | namespace pylaeva_s_inc_contrast_img_by_lsh { | ||
| 16 | |||
| 17 |
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72 | PylaevaSIncContrastImgByLshTBB::PylaevaSIncContrastImgByLshTBB(const InType &in) { |
| 18 | SetTypeOfTask(GetStaticTypeOfTask()); | ||
| 19 |
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72 | GetInput() = in; |
| 20 | GetOutput() = {}; | ||
| 21 | 72 | } | |
| 22 | |||
| 23 | 72 | bool PylaevaSIncContrastImgByLshTBB::ValidationImpl() { | |
| 24 | 72 | return !(GetInput().empty()); | |
| 25 | } | ||
| 26 | |||
| 27 | 72 | bool PylaevaSIncContrastImgByLshTBB::PreProcessingImpl() { | |
| 28 | 72 | GetOutput().resize(GetInput().size()); | |
| 29 | 72 | return true; | |
| 30 | } | ||
| 31 | |||
| 32 |
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72 | bool PylaevaSIncContrastImgByLshTBB::RunImpl() { |
| 33 | const auto &input = GetInput(); | ||
| 34 | auto &output = GetOutput(); | ||
| 35 | |||
| 36 | size_t size = input.size(); | ||
| 37 | |||
| 38 |
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72 | if (size == 0) { |
| 39 | return false; | ||
| 40 | } | ||
| 41 | |||
| 42 | using MinMax = std::pair<uint8_t, uint8_t>; | ||
| 43 | |||
| 44 | 72 | auto [min_pixel, max_pixel] = tbb::parallel_reduce(tbb::blocked_range<size_t>(1, size), MinMax{input[0], input[0]}, | |
| 45 | 72 | [&](const auto &range, MinMax init) -> MinMax { | |
| 46 |
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584 | for (size_t i = range.begin(); i != range.end(); ++i) { |
| 47 |
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292 | init.first = std::min(init.first, input[i]); |
| 48 | 292 | init.second = std::max(init.second, input[i]); | |
| 49 | } | ||
| 50 | 292 | return init; | |
| 51 | 72 | }, [](const MinMax &a, const MinMax &b) -> MinMax { | |
| 52 | return {std::min(a.first, b.first), std::max(a.second, b.second)}; | ||
| 53 | }); | ||
| 54 | |||
| 55 |
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72 | if (min_pixel == max_pixel) { |
| 56 | 28 | tbb::parallel_for(tbb::blocked_range<size_t>(0, size), [&](const auto &r) { | |
| 57 |
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108 | const uint8_t *src = input.data() + r.begin(); |
| 58 |
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108 | uint8_t *dst = output.data() + r.begin(); |
| 59 | std::copy(src, src + r.size(), dst); | ||
| 60 | 136 | }, tbb::simple_partitioner()); | |
| 61 | 28 | return true; | |
| 62 | } | ||
| 63 | |||
| 64 | 44 | const float scale = 255.0F / static_cast<float>(max_pixel - min_pixel); | |
| 65 | |||
| 66 | 204 | tbb::parallel_for(tbb::blocked_range<size_t>(0, size), [&](const auto &r) { | |
| 67 |
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416 | for (auto i = r.begin(); i != r.end(); ++i) { |
| 68 | 256 | output[i] = static_cast<uint8_t>(std::round((input[i] - min_pixel) * scale)); | |
| 69 | } | ||
| 70 | 204 | }, tbb::static_partitioner()); | |
| 71 | |||
| 72 | 44 | return true; | |
| 73 | } | ||
| 74 | |||
| 75 | 72 | bool PylaevaSIncContrastImgByLshTBB::PostProcessingImpl() { | |
| 76 | 72 | return true; | |
| 77 | } | ||
| 78 | |||
| 79 | } // namespace pylaeva_s_inc_contrast_img_by_lsh | ||
| 80 |