Threshold.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2015-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */
 
#ifndef DW_IMAGEPROCESSING_SEGMENTATION_THRESHOLDING_H_
#define DW_IMAGEPROCESSING_SEGMENTATION_THRESHOLDING_H_
 
#include <dw/core/context/Context.h>
#include <dw/core/base/Types.h>
#include <dw/image/Image.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct dwThresholdObject* dwThresholdHandle_t;
 
typedef enum dwThresholdBehavior {
    DW_THRESHOLD_BEHAVIOR_BINARY = 0,
    DW_THRESHOLD_BEHAVIOR_TRUNCATE = 1,
    DW_THRESHOLD_BEHAVIOR_TO_ZERO = 2,
} dwThresholdBehavior;
 
typedef enum dwThresholdMode {
    DW_THRESHOLD_MODE_SIMPLE = 0,
    DW_THRESHOLD_MODE_OTSU = 1,
    DW_THRESHOLD_MODE_PER_PIXEL = 2,
} dwThresholdMode;
 
typedef struct dwThresholdParameters
{
    dwThresholdMode mode;
    dwThresholdBehavior behavior;
    uint32_t maxVal;
    bool inverse;
    cudaStream_t stream;
    uint32_t manualThresholdValue;
    dwImageHandle_t thresholdingImage;
} dwThresholdParameters;
 
DW_API_PUBLIC
dwStatus dwThreshold_initialize(dwThresholdHandle_t* handle, dwThresholdParameters params,
                                dwContextHandle_t context);
 
DW_API_PUBLIC
dwStatus dwThreshold_reset(dwThresholdHandle_t obj);
 
DW_API_PUBLIC
dwStatus dwThreshold_release(dwThresholdHandle_t handle);
 
DW_API_PUBLIC
dwStatus dwThreshold_applyThreshold(dwImageHandle_t outputImage, const dwImageHandle_t inputImage, dwThresholdHandle_t obj);
 
DW_API_PUBLIC
dwStatus dwThreshold_setThresholdParameters(dwThresholdParameters parameters,
                                            dwThresholdHandle_t obj);
DW_API_PUBLIC
dwStatus dwThreshold_setCUDAStream(cudaStream_t stream, dwThresholdHandle_t obj);
 
DW_API_PUBLIC
dwStatus dwThreshold_getCUDAStream(cudaStream_t* stream, dwThresholdHandle_t obj);
 
#ifdef __cplusplus
}
#endif
#endif // DW_IMAGEPROCESSING_SEGMENTATION_THRESHOLDING_H_