Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 2 | * Copyright (c) 2016-2018 ARM Limited. |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 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_NEMEANSTDDEVKERNEL_H__ |
| 25 | #define __ARM_COMPUTE_NEMEANSTDDEVKERNEL_H__ |
| 26 | |
| 27 | #include "arm_compute/core/NEON/INEKernel.h" |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 28 | #include "support/Mutex.h" |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 29 | |
| 30 | #include <cstdint> |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 31 | |
| 32 | namespace arm_compute |
| 33 | { |
| 34 | class ITensor; |
| 35 | using IImage = ITensor; |
| 36 | |
| 37 | /** Interface for the kernel to calculate mean and standard deviation of input image pixels. */ |
| 38 | class NEMeanStdDevKernel : public INEKernel |
| 39 | { |
| 40 | public: |
Anthony Barbier | e8a4983 | 2018-01-18 10:04:05 +0000 | [diff] [blame] | 41 | const char *name() const override |
| 42 | { |
| 43 | return "NEMeanStdDevKernel"; |
| 44 | } |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 45 | /** Default constructor */ |
| 46 | NEMeanStdDevKernel(); |
| 47 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 48 | NEMeanStdDevKernel(const NEMeanStdDevKernel &) = delete; |
| 49 | /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| 50 | NEMeanStdDevKernel &operator=(const NEMeanStdDevKernel &) = delete; |
| 51 | /** Allow instances of this class to be moved */ |
| 52 | NEMeanStdDevKernel(NEMeanStdDevKernel &&) = default; |
| 53 | /** Allow instances of this class to be moved */ |
| 54 | NEMeanStdDevKernel &operator=(NEMeanStdDevKernel &&) = default; |
| 55 | /** Default destructor */ |
| 56 | ~NEMeanStdDevKernel() = default; |
| 57 | |
| 58 | /** Initialise the kernel's input and outputs. |
| 59 | * |
| 60 | * @param[in] input Input image. Data type supported: U8. |
| 61 | * @param[out] mean Input average pixel value. |
| 62 | * @param[out] global_sum Keeps global sum of pixel values. |
| 63 | * @param[out] stddev (Optional) Output standard deviation of pixel values. |
| 64 | * @param[out] global_sum_squared (Optional if stddev is not set, required if stddev is set) Keeps global sum of squared pixel values. |
| 65 | */ |
| 66 | void configure(const IImage *input, float *mean, uint64_t *global_sum, float *stddev = nullptr, uint64_t *global_sum_squared = nullptr); |
| 67 | |
| 68 | // Inherited methods overridden: |
Moritz Pflanzer | c186b57 | 2017-09-07 09:48:04 +0100 | [diff] [blame] | 69 | void run(const Window &window, const ThreadInfo &info) override; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 70 | |
Giorgio Arena | a261181 | 2017-07-21 10:08:48 +0100 | [diff] [blame] | 71 | BorderSize border_size() const override; |
| 72 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 73 | private: |
Michalis Spyrou | 07781ac | 2017-08-31 15:11:41 +0100 | [diff] [blame] | 74 | const IImage *_input; |
| 75 | float *_mean; |
| 76 | float *_stddev; |
| 77 | uint64_t *_global_sum; |
| 78 | uint64_t *_global_sum_squared; |
| 79 | arm_compute::Mutex _mtx; |
| 80 | BorderSize _border_size; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 81 | }; |
Gian Marco Iodice | 356f643 | 2017-09-22 11:32:21 +0100 | [diff] [blame] | 82 | } // namespace arm_compute |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 83 | #endif /* __ARM_COMPUTE_NEMEANSTDDEVKERNEL_H__ */ |