| /* |
| * Copyright (c) 2017 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #include "arm_compute/core/Helpers.h" |
| |
| #include "Median3x3.h" |
| #include "Utils.h" |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| namespace reference |
| { |
| namespace |
| { |
| constexpr unsigned int filter_size = 3; /* Size of the kernel/filter in number of elements. */ |
| constexpr BorderSize border_size(filter_size / 2); /* Border size of the kernel/filter around its central element. */ |
| } // namespace |
| |
| template <typename T> |
| SimpleTensor<T> median3x3(const SimpleTensor<T> &src, BorderMode border_mode, T constant_border_value) |
| { |
| SimpleTensor<T> dst(src.shape(), src.data_type()); |
| const int size_tot_filter = filter_size * filter_size; |
| |
| for(int src_idx = 0; src_idx < src.num_elements(); ++src_idx) |
| { |
| std::array<T, size_tot_filter> filter_elems = { { 0 } }; |
| Coordinates id = index2coord(src.shape(), src_idx); |
| const int x = id.x(); |
| const int y = id.y(); |
| |
| for(int j = y - static_cast<int>(border_size.top), index = 0; j <= y + static_cast<int>(border_size.bottom); ++j) |
| { |
| for(int i = x - static_cast<int>(border_size.left); i <= x + static_cast<int>(border_size.right); ++i, ++index) |
| { |
| id.set(0, i); |
| id.set(1, j); |
| filter_elems[index] = tensor_elem_at(src, id, border_mode, constant_border_value); |
| } |
| } |
| std::sort(filter_elems.begin(), filter_elems.end()); |
| dst[src_idx] = filter_elems[size_tot_filter / 2]; |
| } |
| |
| return dst; |
| } |
| |
| template SimpleTensor<uint8_t> median3x3(const SimpleTensor<uint8_t> &src, BorderMode border_mode, uint8_t constant_border_value); |
| } // namespace reference |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |