Program Listing for File OpNormalize.h

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out[data_idx] = (in[data_idx] - mean[param_idx]) * m * global_scale + shift
/*
 * SPDX-FileCopyrightText: Copyright (c) 2022-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef CVCUDA_NORMALIZE_H
#define CVCUDA_NORMALIZE_H

#include "Operator.h"
#include "detail/Export.h"

#include <cuda_runtime.h>
#include <nvcv/ImageBatch.h>
#include <nvcv/Status.h>
#include <nvcv/Tensor.h>

#ifdef __cplusplus
extern "C"
{
#endif

// @brief Flag to be used by normalize operation to indicate scale is standard deviation instead.
#define CVCUDA_NORMALIZE_SCALE_IS_STDDEV (1 << 0)

CVCUDA_PUBLIC NVCVStatus cvcudaNormalizeCreate(NVCVOperatorHandle *handle);

CVCUDA_PUBLIC NVCVStatus cvcudaNormalizeSubmit(NVCVOperatorHandle handle, cudaStream_t stream, NVCVTensorHandle in,
                                               NVCVTensorHandle base, NVCVTensorHandle scale, NVCVTensorHandle out,
                                               float global_scale, float shift, float epsilon, uint32_t flags);

CVCUDA_PUBLIC NVCVStatus cvcudaNormalizeVarShapeSubmit(NVCVOperatorHandle handle, cudaStream_t stream,
                                                       NVCVImageBatchHandle in, NVCVTensorHandle base,
                                                       NVCVTensorHandle scale, NVCVImageBatchHandle out,
                                                       float global_scale, float shift, float epsilon, uint32_t flags);
#ifdef __cplusplus
}
#endif

#endif /* CVCUDA_NORMALIZE_H */