78 lines
3.3 KiB
C++
78 lines
3.3 KiB
C++
/*
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* Copyright (c) 2016-2020 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_NEMEANSTDDEV_H
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#define ARM_COMPUTE_NEMEANSTDDEV_H
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#include "arm_compute/core/IMultiImage.h"
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#include "arm_compute/core/Types.h"
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#include "arm_compute/runtime/IFunction.h"
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#include <memory>
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#include <cstdint>
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namespace arm_compute
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{
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class NEMeanStdDevKernel;
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class NEFillBorderKernel;
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/** Basic function to execute mean and std deviation. This function calls the following NEON kernels:
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*
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* @ref NEMeanStdDevKernel
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*
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*/
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class NEMeanStdDev : public IFunction
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{
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public:
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/** Default Constructor. */
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NEMeanStdDev();
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/** Prevent instances of this class from being copied (As this class contains pointers) */
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NEMeanStdDev(const NEMeanStdDev &) = delete;
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/** Prevent instances of this class from being copied (As this class contains pointers) */
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NEMeanStdDev &operator=(const NEMeanStdDev &) = delete;
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/** Prevent instances of this class from being moved (As this class contains non movable objects) */
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NEMeanStdDev(NEMeanStdDev &&) = delete;
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/** Prevent instances of this class from being moved (As this class contains non movable objects) */
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NEMeanStdDev &operator=(NEMeanStdDev &&) = delete;
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/** Default destructor */
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~NEMeanStdDev();
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/** Initialise the kernel's inputs and outputs.
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*
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* @param[in, out] input Input image. Data types supported: U8. (Written to only for border filling)
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* @param[out] mean Output average pixel value.
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* @param[out] stddev (Optional) Output standard deviation of pixel values.
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*/
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void configure(IImage *input, float *mean, float *stddev = nullptr);
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// Inherited methods overridden:
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void run() override;
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private:
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std::unique_ptr<NEMeanStdDevKernel> _mean_stddev_kernel; /**< Kernel that standard deviation calculation. */
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std::unique_ptr<NEFillBorderKernel> _fill_border_kernel; /**< Kernel that fills tensor's borders with zeroes. */
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uint64_t _global_sum; /**< Variable that holds the global sum among calls in order to ease reduction */
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uint64_t _global_sum_squared; /**< Variable that holds the global sum of squared values among calls in order to ease reduction */
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};
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}
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#endif /*ARM_COMPUTE_NEMEANSTDDEV_H */
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