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Diffstat (limited to 'tests/validation/reference/NonMaximaSuppression.cpp')
-rw-r--r-- | tests/validation/reference/NonMaximaSuppression.cpp | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tests/validation/reference/NonMaximaSuppression.cpp b/tests/validation/reference/NonMaximaSuppression.cpp new file mode 100644 index 0000000000..eab5cecfc8 --- /dev/null +++ b/tests/validation/reference/NonMaximaSuppression.cpp @@ -0,0 +1,75 @@ +/* + * 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 "NonMaximaSuppression.h" + +#include "Utils.h" +#include "tests/validation/Helpers.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +template <typename T> +SimpleTensor<T> non_maxima_suppression(const SimpleTensor<T> &src, BorderMode border_mode, T constant_border_value) +{ + constexpr int block_size = 3; + SimpleTensor<T> dst(src.shape(), src.data_type(), src.num_channels()); + ValidRegion valid_region = shape_to_valid_region(src.shape(), border_mode == BorderMode::UNDEFINED, BorderSize(block_size / 2)); + + for(int i = 0; i < src.num_elements(); ++i) + { + Coordinates coord = index2coord(src.shape(), i); + int x = coord.x(); + int y = coord.y(); + + if(!is_in_valid_region(valid_region, coord)) + { + continue; + } + + if(src[i] >= tensor_elem_at(src, Coordinates(x - 1, y - 1), border_mode, constant_border_value) && src[i] >= tensor_elem_at(src, Coordinates(x, y - 1), border_mode, constant_border_value) + && src[i] >= tensor_elem_at(src, Coordinates(x + 1, y - 1), border_mode, constant_border_value) && src[i] >= tensor_elem_at(src, Coordinates(x - 1, y), border_mode, constant_border_value) + && src[i] > tensor_elem_at(src, Coordinates(x + 1, y), border_mode, constant_border_value) && src[i] > tensor_elem_at(src, Coordinates(x - 1, y + 1), border_mode, constant_border_value) + && src[i] > tensor_elem_at(src, Coordinates(x, y + 1), border_mode, constant_border_value) && src[i] > tensor_elem_at(src, Coordinates(x + 1, y + 1), border_mode, constant_border_value)) + { + dst[i] = src[i]; + } + else + { + dst[i] = T(0); + } + } + + return dst; +} + +template SimpleTensor<float> non_maxima_suppression(const SimpleTensor<float> &src, BorderMode border_mode, float constant_border_value); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute |