Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #ifndef __ARM_COMPUTE_CLLAPLACIANPYRAMID_H__ |
| 25 | #define __ARM_COMPUTE_CLLAPLACIANPYRAMID_H__ |
| 26 | |
| 27 | #include "arm_compute/core/Types.h" |
| 28 | #include "arm_compute/runtime/CL/CLPyramid.h" |
| 29 | #include "arm_compute/runtime/CL/functions/CLArithmeticSubtraction.h" |
Giorgio Arena | 04a8f8c | 2017-11-23 11:45:24 +0000 | [diff] [blame] | 30 | #include "arm_compute/runtime/CL/functions/CLDepthConvertLayer.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 31 | #include "arm_compute/runtime/CL/functions/CLGaussian5x5.h" |
| 32 | #include "arm_compute/runtime/CL/functions/CLGaussianPyramid.h" |
| 33 | #include "arm_compute/runtime/IFunction.h" |
| 34 | |
| 35 | #include <cstddef> |
| 36 | #include <cstdint> |
| 37 | #include <memory> |
| 38 | |
| 39 | namespace arm_compute |
| 40 | { |
| 41 | class ICLTensor; |
| 42 | |
| 43 | /** Basic function to execute laplacian pyramid. This function calls the following OpenCL kernels and functions: |
| 44 | * |
| 45 | * -# @ref CLGaussianPyramidHalf |
| 46 | * -# @ref CLGaussian5x5 |
| 47 | * -# @ref CLArithmeticSubtraction |
| 48 | * |
| 49 | * First a Gaussian pyramid is created. Then, for each level i, the corresponding tensor I(i) is blurred with the Gaussian 5x5 filter, and then |
| 50 | * difference between the two tensors is the corresponding level L(i) of the Laplacian pyramid. |
| 51 | * L(i) = I(i) - Gaussian5x5(I(i)) |
| 52 | * Level 0 has always the same first two dimensions as the input tensor. |
| 53 | */ |
| 54 | class CLLaplacianPyramid : public IFunction |
| 55 | { |
| 56 | public: |
| 57 | /** Constructor */ |
| 58 | CLLaplacianPyramid(); |
| 59 | /** Initialise the function's source, destinations and border mode. |
| 60 | * |
| 61 | * @param[in] input Source tensor. Data types supported: U8. |
| 62 | * @param[out] pyramid Destination pyramid tensors, Data types supported at each level: S16. |
| 63 | * @param[out] output The lowest resolution tensor necessary to reconstruct the input tensor from the pyramid. Data types supported: S16. |
| 64 | * The first two dimensions of this tensor must match the first two dimensions of the tensor in the last level of the pyramid, that is: |
| 65 | * output.width = input.width() / pow(2,pyramid_levels-1) and out.height = in.height() / pow(2,pyramid_levels-1) |
| 66 | * @param[in] border_mode Border mode to use. |
| 67 | * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. |
| 68 | * |
| 69 | */ |
| 70 | void configure(ICLTensor *input, CLPyramid *pyramid, ICLTensor *output, BorderMode border_mode, uint8_t constant_border_value); |
| 71 | |
| 72 | // Inherited methods overridden: |
| 73 | void run() override; |
| 74 | |
| 75 | private: |
| 76 | size_t _num_levels; |
| 77 | CLGaussianPyramidHalf _gaussian_pyr_function; |
| 78 | std::unique_ptr<CLGaussian5x5[]> _convf; |
| 79 | std::unique_ptr<CLArithmeticSubtraction[]> _subf; |
Giorgio Arena | 04a8f8c | 2017-11-23 11:45:24 +0000 | [diff] [blame] | 80 | CLDepthConvertLayer _depth_function; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 81 | CLPyramid _gauss_pyr; |
| 82 | CLPyramid _conv_pyr; |
| 83 | }; |
| 84 | } |
| 85 | #endif /*__ARM_COMPUTE_CLLAPLACIANPYRAMID_H__ */ |