| /* |
| * Copyright (c) 2016-2019 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_CLMEANSTDDEV_H |
| #define ARM_COMPUTE_CLMEANSTDDEV_H |
| |
| #include "arm_compute/core/CL/OpenCL.h" |
| #include "arm_compute/core/CL/kernels/CLFillBorderKernel.h" |
| #include "arm_compute/core/CL/kernels/CLMeanStdDevKernel.h" |
| #include "arm_compute/runtime/CL/functions/CLReductionOperation.h" |
| #include "arm_compute/runtime/IFunction.h" |
| #include "arm_compute/runtime/IMemoryManager.h" |
| #include "arm_compute/runtime/MemoryGroup.h" |
| |
| namespace arm_compute |
| { |
| /** Basic function to execute mean and standard deviation by calling @ref CLMeanStdDevKernel */ |
| class CLMeanStdDev : public IFunction |
| { |
| public: |
| /** Default Constructor. */ |
| CLMeanStdDev(std::shared_ptr<IMemoryManager> memory_manager = nullptr); |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLMeanStdDev(const CLMeanStdDev &) = delete; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| CLMeanStdDev &operator=(const CLMeanStdDev &) = delete; |
| /** Allow instances of this class to be moved */ |
| CLMeanStdDev(CLMeanStdDev &&) = default; |
| /** Allow instances of this class to be moved */ |
| CLMeanStdDev &operator=(CLMeanStdDev &&) = default; |
| /** Default destructor */ |
| ~CLMeanStdDev() = default; |
| /** Initialise the kernel's inputs and outputs. |
| * |
| * @param[in, out] input Input image. Data types supported: U8/F16/F32. (Written to only for border filling) |
| * @param[out] mean Output average pixel value. |
| * @param[out] stddev (Optional) Output standard deviation of pixel values. |
| */ |
| void configure(ICLImage *input, float *mean, float *stddev = nullptr); |
| /** Static function to check if given info will lead to a valid configuration of @ref CLMeanStdDev |
| * |
| * @param[in] input Input image. Data types supported: U8/F16/F32. |
| * @param[in] mean Output average pixel value. |
| * @param[in] stddev (Optional) Output standard deviation of pixel values. |
| * |
| * @return a status |
| */ |
| static Status validate(ITensorInfo *input, float *mean, float *stddev = nullptr); |
| |
| // Inherited methods overridden: |
| void run() override; |
| |
| private: |
| template <typename T> |
| void run_float(); |
| void run_int(); |
| |
| MemoryGroup _memory_group; /**< Function's memory group */ |
| DataType _data_type; /**< Input data type. */ |
| unsigned int _num_pixels; /**< Number of image's pixels. */ |
| bool _run_stddev; /**< Flag for knowing if we should run stddev reduction function. */ |
| CLReductionOperation _reduction_operation_mean; /**< Reduction operation function for computing mean value. */ |
| CLReductionOperation _reduction_operation_stddev; /**< Reduction operation function for computing standard deviation. */ |
| CLTensor _reduction_output_mean; /**< Reduction operation output tensor for mean value. */ |
| CLTensor _reduction_output_stddev; /**< Reduction operation output tensor for standard deviation value. */ |
| float *_mean; /**< Pointer that holds the mean value. */ |
| float *_stddev; /**< Pointer that holds the standard deviation value. */ |
| CLMeanStdDevKernel _mean_stddev_kernel; /**< Kernel that standard deviation calculation. */ |
| CLFillBorderKernel _fill_border_kernel; /**< Kernel that fills the border with zeroes. */ |
| cl::Buffer _global_sum; /**< Variable that holds the global sum among calls in order to ease reduction */ |
| cl::Buffer _global_sum_squared; /**< Variable that holds the global sum of squared values among calls in order to ease reduction */ |
| }; |
| } |
| #endif /*ARM_COMPUTE_CLMEANSTDDEV_H */ |