| /* |
| * Copyright (c) 2017-2019 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_CLBATCHNORMALIZATIONLAYER_H |
| #define ARM_COMPUTE_CLBATCHNORMALIZATIONLAYER_H |
| |
| #include "arm_compute/runtime/IFunction.h" |
| |
| #include "arm_compute/core/CL/kernels/CLBatchNormalizationLayerKernel.h" |
| #include "arm_compute/core/Types.h" |
| |
| namespace arm_compute |
| { |
| class ICLTensor; |
| |
| /** Basic function to run @ref CLNormalizationLayerKernel and simulate a batch normalization layer. |
| * |
| * Batch normalization is calculated by: |
| * @f[ out_i = \gamma * (\frac{in_i - \mu_{B}}{\sqrt{\sigma^2_{B} + \epsilon}}) + \beta \equiv BN_{\gamma,\beta}(in_i) @f] |
| * |
| */ |
| class CLBatchNormalizationLayer : public IFunction |
| { |
| public: |
| /** Default constructor */ |
| CLBatchNormalizationLayer(); |
| /** Set the input and output tensors. |
| * |
| * @note If the output tensor is a nullptr or is equal to the input, the batch normalization function will be performed in-place |
| * |
| * @param[in, out] input Source tensor. In case of @p output tensor = nullptr, this tensor will store the result. |
| * 3 lower dimensions represent a single input with dimensions [width, height, FM]. |
| * The rest are optional and used for representing batches. Data types supported: F16/F32. Data layouts supported: NCHW/NHWC. |
| * @param[out] output Destination tensor. Output will have the same number of dimensions as input. Data type supported: same as @p input |
| * @param[in] mean Mean values tensor. 1 dimension with size equal to the feature maps [FM]. Data types supported: Same as @p input |
| * @param[in] var Variance values tensor. 1 dimension with size equal to the feature maps [FM]. Data types supported: Same as @p input |
| * @param[in] beta (Optional) Beta values tensor info. 1 dimension with size equal to the feature maps [FM]. If not provided, default value for beta is 0. Data types supported: Same as @p input |
| * @param[in] gamma (Optional) Gamma values tensor info. 1 dimension with size equal to the feature maps [FM]. If not provided, default value for gamma is 1. Data types supported: Same as @p input |
| * @param[in] epsilon (Optional) Small value to avoid division with zero. Default value is 0.001f. |
| * @param[in] act_info (Optional) Activation layer information in case of a fused activation. Only RELU, BOUNDED_RELU and LU_BOUNDED_RELU supported. |
| */ |
| void configure(ICLTensor *input, ICLTensor *output, const ICLTensor *mean, const ICLTensor *var, const ICLTensor *beta = nullptr, const ICLTensor *gamma = nullptr, float epsilon = 0.001f, |
| ActivationLayerInfo act_info = ActivationLayerInfo()); |
| /** Static function to check if given info will lead to a valid configuration of @ref CLBatchNormalizationLayer |
| * |
| * @param[in] input Source tensor info. In case of @p output tensor info = nullptr, this tensor will store the result. |
| * 3 lower dimensions represent a single input with dimensions [width, height, FM]. |
| * The rest are optional and used for representing batches. Data types supported: F16/F32. Data layouts supported: NCHW/NHWC. |
| * @param[in] output Destination tensor info. Output will have the same number of dimensions as input. Data type supported: same as @p input |
| * @param[in] mean Mean values tensor info. 1 dimension with size equal to the feature maps [FM]. Data types supported: Same as @p input |
| * @param[in] var Variance values tensor info. 1 dimension with size equal to the feature maps [FM]. Data types supported: Same as @p input |
| * @param[in] beta (Optional) Beta values tensor info. 1 dimension with size equal to the feature maps [FM]. If not provided, default value for beta is 0. Data types supported: Same as @p input |
| * @param[in] gamma (Optional) Gamma values tensor info. 1 dimension with size equal to the feature maps [FM]. If not provided, default value for gamma is 1. Data types supported: Same as @p input |
| * @param[in] epsilon (Optional) Small value to avoid division with zero. Default value is 0.001f. |
| * @param[in] act_info (Optional) Activation layer information in case of a fused activation. Only RELU, BOUNDED_RELU and LU_BOUNDED_RELU supported. |
| * |
| * @return a status |
| */ |
| static Status validate(const ITensorInfo *input, const ITensorInfo *output, |
| const ITensorInfo *mean, const ITensorInfo *var, |
| const ITensorInfo *beta = nullptr, const ITensorInfo *gamma = nullptr, |
| float epsilon = 0.001f, ActivationLayerInfo act_info = ActivationLayerInfo()); |
| |
| // Inherited methods overridden: |
| void run() override; |
| |
| private: |
| CLBatchNormalizationLayerKernel _norm_kernel; /**< BatchNormalization layer kernel to run */ |
| }; |
| } |
| #endif /* ARM_COMPUTE_CLBATCHNORMALIZATIONLAYER_H */ |