| /* |
| * 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. |
| */ |
| #ifndef __ARM_COMPUTE_CLCANNYEDGE_H__ |
| #define __ARM_COMPUTE_CLCANNYEDGE_H__ |
| |
| #include "arm_compute/runtime/IFunction.h" |
| |
| #include "arm_compute/core/CL/kernels/CLCannyEdgeKernel.h" |
| #include "arm_compute/core/CL/kernels/CLFillBorderKernel.h" |
| #include "arm_compute/runtime/CL/CLMemoryGroup.h" |
| #include "arm_compute/runtime/CL/CLTensor.h" |
| #include "arm_compute/runtime/IMemoryManager.h" |
| |
| #include <memory> |
| |
| namespace arm_compute |
| { |
| class ICLTensor; |
| |
| /** Basic function to execute canny edge on OpenCL. This function calls the following OpenCL kernels and functions: |
| * |
| * -# @ref CLFillBorderKernel (if border_mode == REPLICATE or border_mode == CONSTANT) |
| * -# @ref CLSobel3x3 (if gradient_size == 3) or @ref CLSobel5x5 (if gradient_size == 5) or @ref CLSobel7x7 (if gradient_size == 7) |
| * -# @ref CLGradientKernel |
| * -# @ref CLEdgeNonMaxSuppressionKernel |
| * -# @ref CLEdgeTraceKernel |
| * |
| */ |
| class CLCannyEdge : public IFunction |
| { |
| public: |
| /** Constructor */ |
| CLCannyEdge(std::shared_ptr<IMemoryManager> memory_manager = nullptr); |
| /** Initialise the function's source, destination, thresholds, gradient size, normalization type and border mode. |
| * |
| * @param[in,out] input Source tensor. Data types supported: U8. (Written to only for border_mode != UNDEFINED) |
| * @param[out] output Destination tensor. Data types supported: U8. |
| * @param[in] upper_thr Upper threshold used for the hysteresis. |
| * @param[in] lower_thr Lower threshold used for the hysteresis. |
| * @param[in] gradient_size Gradient size (3, 5 or 7). |
| * @param[in] norm_type Normalization type. if 1, L1-Norm otherwise L2-Norm. |
| * @param[in] border_mode Border mode to use for the convolution. |
| * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. |
| */ |
| void configure(ICLTensor *input, ICLTensor *output, int32_t upper_thr, int32_t lower_thr, int32_t gradient_size, int32_t norm_type, |
| BorderMode border_mode, uint8_t constant_border_value = 0); |
| |
| // Inherited methods overridden: |
| virtual void run() override; |
| |
| private: |
| CLMemoryGroup _memory_group; /**< Function's memory group */ |
| std::unique_ptr<IFunction> _sobel; /**< Pointer to Sobel kernel. */ |
| CLGradientKernel _gradient; /**< Gradient kernel. */ |
| CLFillBorderKernel _border_mag_gradient; /**< Fill border on magnitude tensor kernel */ |
| CLEdgeNonMaxSuppressionKernel _non_max_suppr; /**< Non-Maxima suppression kernel. */ |
| CLEdgeTraceKernel _edge_trace; /**< Edge tracing kernel. */ |
| CLImage _gx; /**< Source tensor - Gx component. */ |
| CLImage _gy; /**< Source tensor - Gy component. */ |
| CLImage _mag; /**< Source tensor - Magnitude. */ |
| CLImage _phase; /**< Source tensor - Phase. */ |
| CLImage _nonmax; /**< Source tensor - Non-Maxima suppressed. */ |
| CLImage _visited, _recorded, _l1_list_counter, _l1_stack; /**< Temporary tensors */ |
| }; |
| } |
| |
| #endif /* __ARM_COMPUTE_CLCANNYEDGE_H__ */ |