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Diffstat (limited to 'tests/validation/reference/Median3x3.cpp')
-rw-r--r-- | tests/validation/reference/Median3x3.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/tests/validation/reference/Median3x3.cpp b/tests/validation/reference/Median3x3.cpp new file mode 100644 index 0000000000..91a787a0a3 --- /dev/null +++ b/tests/validation/reference/Median3x3.cpp @@ -0,0 +1,76 @@ +/* + * 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 |