| /* |
| * Copyright (c) 2017-2019 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 "Dilate.h" |
| |
| #include "Utils.h" |
| #include "tests/validation/Helpers.h" |
| |
| #include <algorithm> |
| #include <array> |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| namespace reference |
| { |
| template <typename T> |
| SimpleTensor<T> dilate(const SimpleTensor<T> &src, BorderMode border_mode, T constant_border_value) |
| { |
| /* |
| -1 x +1 |
| -1 [tl][tc][tr] -1 |
| y [ml][xy][mr] y |
| +1 [bl][bc][br] +1 |
| -1 x +1 |
| dilate: |
| dst(x, y) = max[ src(x', y') for x-1<=x'<=x+1, y-1<=y'<=y+1 ] = max({tl, tc, tr, ml, xy, mr, bl, bc, br}) |
| */ |
| SimpleTensor<T> dst(src.shape(), src.data_type()); |
| const uint32_t num_elements = src.num_elements(); |
| |
| for(uint32_t i = 0; i < num_elements; ++i) |
| { |
| Coordinates coord = index2coord(src.shape(), i); |
| const int x = coord.x(); |
| const int y = coord.y(); |
| |
| std::array<T, 9> neighbours = { { 0 } }; |
| for(int row = y - 1, j = 0; row <= y + 1; ++row) |
| { |
| for(int col = x - 1; col <= x + 1; ++col, ++j) |
| { |
| coord.set(0, col); |
| coord.set(1, row); |
| neighbours[j] = tensor_elem_at(src, coord, border_mode, constant_border_value); |
| } |
| } |
| |
| dst[i] = *std::max_element(neighbours.cbegin(), neighbours.cend()); |
| } |
| |
| return dst; |
| } |
| |
| template SimpleTensor<uint8_t> dilate(const SimpleTensor<uint8_t> &src, BorderMode border_mode, uint8_t constant_border_value); |
| } // namespace reference |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |