1 /* 2 * Copyright (c) 2016-2020 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_NEHOGDESCRIPTOR_H 25 #define ARM_COMPUTE_NEHOGDESCRIPTOR_H 26 27 #include "arm_compute/runtime/IFunction.h" 28 #include "arm_compute/runtime/IMemoryManager.h" 29 #include "arm_compute/runtime/MemoryGroup.h" 30 #include "arm_compute/runtime/NEON/functions/NEHOGGradient.h" 31 #include "arm_compute/runtime/Tensor.h" 32 33 #include <memory> 34 35 namespace arm_compute 36 { 37 class IHOG; 38 class NEHOGOrientationBinningKernel; 39 class NEHOGBlockNormalizationKernel; 40 41 /** Basic function to calculate HOG descriptor. This function calls the following NEON kernels: 42 * 43 * -# @ref NEHOGGradient 44 * -# @ref NEHOGOrientationBinningKernel 45 * -# @ref NEHOGBlockNormalizationKernel 46 * 47 * @deprecated This function is deprecated and is intended to be removed in 21.05 release 48 * 49 */ 50 class NEHOGDescriptor : public IFunction 51 { 52 public: 53 /** Default constructor */ 54 NEHOGDescriptor(std::shared_ptr<IMemoryManager> memory_manager = nullptr); 55 /** Prevent instances of this class from being copied (As this class contains pointers) */ 56 NEHOGDescriptor(const NEHOGDescriptor &) = delete; 57 /** Prevent instances of this class from being copied (As this class contains pointers) */ 58 NEHOGDescriptor &operator=(const NEHOGDescriptor &) = delete; 59 /** Prevent instances of this class from being moved (As this class contains non movable objects) */ 60 NEHOGDescriptor(NEHOGDescriptor &&) = delete; 61 /** Prevent instances of this class from being moved (As this class contains non movable objects) */ 62 NEHOGDescriptor &operator=(NEHOGDescriptor &&) = delete; 63 /** Default destructor */ 64 ~NEHOGDescriptor(); 65 /** Initialise the function's source, destination, HOG data-object and border mode 66 * 67 * @param[in, out] input Input tensor. Data type supported: U8 68 * (Written to only for @p border_mode != UNDEFINED) 69 * @param[out] output Output tensor which stores the HOG descriptor. DataType supported: F32. The number of channels is equal to the number of histogram bins per block 70 * @param[in] hog HOG data object which describes the HOG descriptor 71 * @param[in] border_mode Border mode to use. 72 * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT. 73 */ 74 void configure(ITensor *input, ITensor *output, const IHOG *hog, BorderMode border_mode, uint8_t constant_border_value = 0); 75 76 // Inherited method overridden: 77 void run() override; 78 79 private: 80 MemoryGroup _memory_group; 81 NEHOGGradient _gradient; 82 std::unique_ptr<NEHOGOrientationBinningKernel> _orient_bin; 83 std::unique_ptr<NEHOGBlockNormalizationKernel> _block_norm; 84 Tensor _mag; 85 Tensor _phase; 86 Tensor _hog_space; 87 }; 88 } 89 90 #endif /* ARM_COMPUTE_NEHOGDESCRIPTOR_H */ 91