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Diffstat (limited to 'src/core/CL/kernels/CLFastCornersKernel.h')
| -rw-r--r-- | src/core/CL/kernels/CLFastCornersKernel.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/core/CL/kernels/CLFastCornersKernel.h b/src/core/CL/kernels/CLFastCornersKernel.h new file mode 100644 index 0000000000..0c1b564c2f --- /dev/null +++ b/src/core/CL/kernels/CLFastCornersKernel.h @@ -0,0 +1,133 @@ +/* + * 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 */ |