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Diffstat (limited to 'arm_compute/core/NEON/kernels/NEMeanStdDevKernel.h')
-rw-r--r-- | arm_compute/core/NEON/kernels/NEMeanStdDevKernel.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/arm_compute/core/NEON/kernels/NEMeanStdDevKernel.h b/arm_compute/core/NEON/kernels/NEMeanStdDevKernel.h new file mode 100644 index 0000000000..83407ccb7d --- /dev/null +++ b/arm_compute/core/NEON/kernels/NEMeanStdDevKernel.h @@ -0,0 +1,76 @@ +/* + * Copyright (c) 2016, 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_NEMEANSTDDEVKERNEL_H__ +#define __ARM_COMPUTE_NEMEANSTDDEVKERNEL_H__ + +#include "arm_compute/core/NEON/INEKernel.h" + +#include <cstdint> +#include <mutex> + +namespace arm_compute +{ +class ITensor; +using IImage = ITensor; + +/** Interface for the kernel to calculate mean and standard deviation of input image pixels. */ +class NEMeanStdDevKernel : public INEKernel +{ +public: + /** Default constructor */ + NEMeanStdDevKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEMeanStdDevKernel(const NEMeanStdDevKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEMeanStdDevKernel &operator=(const NEMeanStdDevKernel &) = delete; + /** Allow instances of this class to be moved */ + NEMeanStdDevKernel(NEMeanStdDevKernel &&) = default; + /** Allow instances of this class to be moved */ + NEMeanStdDevKernel &operator=(NEMeanStdDevKernel &&) = default; + /** Default destructor */ + ~NEMeanStdDevKernel() = default; + + /** Initialise the kernel's input and outputs. + * + * @param[in] input Input image. Data type supported: U8. + * @param[out] mean Input average pixel value. + * @param[out] global_sum Keeps global sum of pixel values. + * @param[out] stddev (Optional) Output standard deviation of pixel values. + * @param[out] global_sum_squared (Optional if stddev is not set, required if stddev is set) Keeps global sum of squared pixel values. + */ + void configure(const IImage *input, float *mean, uint64_t *global_sum, float *stddev = nullptr, uint64_t *global_sum_squared = nullptr); + + // Inherited methods overridden: + void run(const Window &window) override; + +private: + const IImage *_input; + float *_mean; + float *_stddev; + uint64_t *_global_sum; + uint64_t *_global_sum_squared; + std::mutex _mtx; +}; +} +#endif /* __ARM_COMPUTE_NEMEANSTDDEVKERNEL_H__ */ |