From 31bbce1249138633ecd34d351e2ea237ff6d55c8 Mon Sep 17 00:00:00 2001 From: Abe Mbise Date: Tue, 19 Sep 2017 16:19:13 +0100 Subject: COMPMID-510: Port Warp Perspective to new validation Change-Id: I0d96ceb9d9d1d077bec09330cda4fbe6d81ce641 Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88476 Tested-by: Kaizen Reviewed-by: Pablo Tello --- tests/validation/CPP/WarpPerspective.cpp | 132 +++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 tests/validation/CPP/WarpPerspective.cpp (limited to 'tests/validation/CPP/WarpPerspective.cpp') diff --git a/tests/validation/CPP/WarpPerspective.cpp b/tests/validation/CPP/WarpPerspective.cpp new file mode 100644 index 0000000000..7a50253d69 --- /dev/null +++ b/tests/validation/CPP/WarpPerspective.cpp @@ -0,0 +1,132 @@ +/* + * 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 "Utils.h" +#include "WarpPerspective.h" + +namespace arm_compute +{ +namespace test +{ +namespace validation +{ +namespace reference +{ +template +SimpleTensor warp_perspective(const SimpleTensor &src, SimpleTensor &valid_mask, const float *matrix, InterpolationPolicy policy, BorderMode border_mode, uint8_t constant_border_value) +{ + SimpleTensor dst(src.shape(), src.data_type()); + + // x0 = M00 * x + M01 * y + M02 + // y0 = M10 * x + M11 * y + M12 + // z0 = M20 * x + M21 * y + M22 + // xn = x0 / z0 + // yn = y0 / z0 + const float M00 = matrix[0]; + const float M10 = matrix[1]; + const float M20 = matrix[2]; + const float M01 = matrix[0 + 1 * 3]; + const float M11 = matrix[1 + 1 * 3]; + const float M21 = matrix[2 + 1 * 3]; + const float M02 = matrix[0 + 2 * 3]; + const float M12 = matrix[1 + 2 * 3]; + const float M22 = matrix[2 + 2 * 3]; + + const int width = src.shape().x(); + const int height = src.shape().y(); + + for(int element_idx = 0; element_idx < src.num_elements(); ++element_idx) + { + valid_mask[element_idx] = 1; + Coordinates id = index2coord(src.shape(), element_idx); + const int idx = id.x(); + const int idy = id.y(); + const float z0 = M20 * idx + M21 * idy + M22; + + const float x0 = (M00 * idx + M01 * idy + M02); + const float y0 = (M10 * idx + M11 * idy + M12); + + const float xn = x0 / z0; + const float yn = y0 / z0; + id.set(0, static_cast(std::floor(xn))); + id.set(1, static_cast(std::floor(yn))); + if((0 <= yn) && (yn < height) && (0 <= xn) && (xn < width)) + { + switch(policy) + { + case InterpolationPolicy::NEAREST_NEIGHBOR: + dst[element_idx] = tensor_elem_at(src, id, border_mode, constant_border_value); + break; + case InterpolationPolicy::BILINEAR: + (valid_bilinear_policy(xn, yn, width, height, border_mode)) ? dst[element_idx] = bilinear_policy(src, id, xn, yn, border_mode, constant_border_value) : valid_mask[element_idx] = 0; + break; + case InterpolationPolicy::AREA: + default: + ARM_COMPUTE_ERROR("Interpolation not supported"); + break; + } + } + else + { + if(border_mode == BorderMode::UNDEFINED) + { + valid_mask[element_idx] = 0; + } + else + { + switch(policy) + { + case InterpolationPolicy::NEAREST_NEIGHBOR: + if(border_mode == BorderMode::CONSTANT) + { + dst[element_idx] = constant_border_value; + } + else if(border_mode == BorderMode::REPLICATE) + { + id.set(0, std::max(0, std::min(static_cast(xn), width - 1))); + id.set(1, std::max(0, std::min(static_cast(yn), height - 1))); + dst[element_idx] = src[coord2index(src.shape(), id)]; + } + break; + case InterpolationPolicy::BILINEAR: + dst[element_idx] = bilinear_policy(src, id, xn, yn, border_mode, constant_border_value); + break; + case InterpolationPolicy::AREA: + default: + ARM_COMPUTE_ERROR("Interpolation not supported"); + break; + } + } + } + } + return dst; +} + +template SimpleTensor warp_perspective(const SimpleTensor &src, SimpleTensor &valid_mask, const float *matrix, InterpolationPolicy policy, BorderMode border_mode, + uint8_t constant_border_value); +} // namespace reference +} // namespace validation +} // namespace test +} // namespace arm_compute -- cgit v1.2.1