| /* |
| * Copyright (c) 2016-2020 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. |
| */ |
| #ifndef ARM_COMPUTE_CLFASTCORNERSKERNEL_H |
| #define ARM_COMPUTE_CLFASTCORNERSKERNEL_H |
| |
| #include "arm_compute/core/CL/ICLArray.h" |
| #include "arm_compute/core/Types.h" |
| #include "src/core/CL/ICLKernel.h" |
| |
| #include <cstdint> |
| |
| namespace cl |
| { |
| class Buffer; |
| } |
| |
| namespace arm_compute |
| { |
| class ICLTensor; |
| using ICLImage = ICLTensor; |
| |
| /** CL kernel to perform fast corners */ |
| class CLFastCornersKernel : public ICLKernel |
| { |
| public: |
| /** Default constructor */ |
| CLFastCornersKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLFastCornersKernel(const CLFastCornersKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLFastCornersKernel &operator=(const CLFastCornersKernel &) = delete; |
| /** Allow instances of this class to be moved */ |
| CLFastCornersKernel(CLFastCornersKernel &&) = default; |
| /** Allow instances of this class to be moved */ |
| CLFastCornersKernel &operator=(CLFastCornersKernel &&) = default; |
| /** Default destructor */ |
| ~CLFastCornersKernel() = default; |
| |
| /** Initialise the kernel. |
| * |
| * @param[in] input Source image. Data types supported: U8. |
| * @param[out] output Output image. Data types supported: U8. |
| * @param[in] threshold Threshold on difference between intensity of the central pixel and pixels on Bresenham's circle of radius 3. |
| * @param[in] non_max_suppression True if non-maxima suppresion is applied, false otherwise. |
| * @param[in] border_mode Strategy to use for borders. |
| */ |
| void configure(const ICLImage *input, ICLImage *output, float threshold, bool non_max_suppression, BorderMode border_mode); |
| /** Initialise the kernel. |
| * |
| * @param[in] compile_context The compile context to be used. |
| * @param[in] input Source image. Data types supported: U8. |
| * @param[out] output Output image. Data types supported: U8. |
| * @param[in] threshold Threshold on difference between intensity of the central pixel and pixels on Bresenham's circle of radius 3. |
| * @param[in] non_max_suppression True if non-maxima suppresion is applied, false otherwise. |
| * @param[in] border_mode Strategy to use for borders. |
| */ |
| void configure(const CLCompileContext &compile_context, const ICLImage *input, ICLImage *output, float threshold, bool non_max_suppression, BorderMode border_mode); |
| |
| // Inherited methods overridden |
| void run(const Window &window, cl::CommandQueue &queue) override; |
| BorderSize border_size() const override; |
| |
| private: |
| const ICLImage *_input; |
| ICLImage *_output; |
| }; |
| |
| /** CL kernel to copy keypoints information to ICLKeyPointArray and counts the number of key points */ |
| class CLCopyToArrayKernel : public ICLKernel |
| { |
| public: |
| /** Default constructor */ |
| CLCopyToArrayKernel(); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLCopyToArrayKernel(const CLCopyToArrayKernel &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLCopyToArrayKernel &operator=(const CLCopyToArrayKernel &) = delete; |
| /** Allow instances of this class to be moved */ |
| CLCopyToArrayKernel(CLCopyToArrayKernel &&) = default; |
| /** Allow instances of this class to be moved */ |
| CLCopyToArrayKernel &operator=(CLCopyToArrayKernel &&) = default; |
| /** Default destructor */ |
| ~CLCopyToArrayKernel() = default; |
| |
| /** Initialise the kernel. |
| * |
| * @param[in] input Source image. Data types supported: U8. |
| * @param[in] update_number Flag to indicate whether we need to update the number of corners |
| * @param[out] corners Array of keypoints to store the results. |
| * @param[out] num_buffers Number of keypoints to store the results. |
| */ |
| void configure(const ICLImage *input, bool update_number, ICLKeyPointArray *corners, cl::Buffer *num_buffers); |
| /** Initialise the kernel. |
| * |
| * @param[in] compile_context The compile context to be used. |
| * @param[in] input Source image. Data types supported: U8. |
| * @param[in] update_number Flag to indicate whether we need to update the number of corners |
| * @param[out] corners Array of keypoints to store the results. |
| * @param[out] num_buffers Number of keypoints to store the results. |
| */ |
| void configure(const CLCompileContext &compile_context, const ICLImage *input, bool update_number, ICLKeyPointArray *corners, cl::Buffer *num_buffers); |
| |
| // Inherited methods overridden: |
| void run(const Window &window, cl::CommandQueue &queue) override; |
| |
| private: |
| const ICLImage *_input; /**< source image */ |
| ICLKeyPointArray *_corners; /**< destination array */ |
| cl::Buffer *_num_buffer; /**< CL memory to record number of key points in the array */ |
| }; |
| } // namespace arm_compute |
| #endif /* ARM_COMPUTE_CLFASTCORNERSKERNEL_H */ |