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Diffstat (limited to 'arm_compute/runtime/NEON/functions/NECannyEdge.h')
| -rw-r--r-- | arm_compute/runtime/NEON/functions/NECannyEdge.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/arm_compute/runtime/NEON/functions/NECannyEdge.h b/arm_compute/runtime/NEON/functions/NECannyEdge.h new file mode 100644 index 0000000000..fbf2d90740 --- /dev/null +++ b/arm_compute/runtime/NEON/functions/NECannyEdge.h @@ -0,0 +1,97 @@ +/* + * 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_NECANNYEDGE_H__ +#define __ARM_COMPUTE_NECANNYEDGE_H__ + +#include "arm_compute/core/NEON/kernels/NECannyEdgeKernel.h" +#include "arm_compute/core/NEON/kernels/NEFillBorderKernel.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/runtime/IFunction.h" +#include "arm_compute/runtime/Tensor.h" + +#include <cstdint> +#include <memory> + +namespace arm_compute +{ +class ITensor; + +/** Basic function to execute canny edge on NEON. This function calls the following NEON kernels and functions: + * + * -# @ref NEFillBorderKernel (if border_mode == REPLICATE or border_mode == CONSTANT) + * -# @ref NESobel3x3 (if gradient_size == 3) or + * @ref NESobel5x5 (if gradient_size == 5) or + * @ref NESobel7x7 (if gradient_size == 7) + * -# @ref NEGradientKernel + * -# @ref NEEdgeNonMaxSuppressionKernel + * -# @ref NEEdgeTraceKernel + * + */ +class NECannyEdge : public IFunction +{ +public: + /** Constructor + * + * Initialize Sobel kernel to nullptr. + */ + NECannyEdge(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NECannyEdge(const NECannyEdge &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NECannyEdge &operator=(const NECannyEdge &) = delete; + /** Initialise the function's source, destination, thresholds, gradient size, normalization type and border mode. + * + * @param[in, out] input Source tensor. Data type supported: U8. (Written to only for @p border_mode != UNDEFINED) + * @param[out] output Destination tensor. Data type supported: U8. + * @param[in] upper_thr Upper threhold 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. + * @param[in] use_fp16 (Optional) If true the FP16 kernels will be used. If false F32 kernels are used. + * + */ + void configure(ITensor *input, ITensor *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, + bool use_fp16 = false); + + // Inherited methods overridden: + void run() override; + +private: + std::unique_ptr<IFunction> _sobel; /**< Pointer to Sobel kernel */ + std::unique_ptr<INEKernel> _gradient; /**< Gradient kernel */ + NEEdgeNonMaxSuppressionKernel _non_max_suppr; /**< Non-Maxima suppression kernel */ + NEEdgeTraceKernel _edge_trace; /**< Edge tracing kernel */ + NEFillBorderKernel _border_mag_gradient; /**< Fill border on magnitude tensor kernel */ + NEFillBorderKernel _border_edge_trace; /**< Fill border before edge trace */ + Tensor _gx; /**< Source tensor - Gx component */ + Tensor _gy; /**< Source tensor - Gy component */ + Tensor _magnitude; /**< Source tensor - Magnitude */ + Tensor _phase; /**< Source tensor - Phase */ + Tensor _nonmax; /**< Source tensor - Non-Maxima suppressed */ + ITensor *_output; /**< Output tensor provided by the user. */ +}; +} +#endif /* __ARM_COMPUTE_NECANNYEDGE_H */ |