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/*
* Copyright (c) 2017-2020 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_CLHOGDETECTOR_H
#define ARM_COMPUTE_CLHOGDETECTOR_H
#include "arm_compute/core/CL/ICLArray.h"
#include "arm_compute/core/CL/OpenCL.h"
#include "arm_compute/core/IHOG.h"
#include "arm_compute/runtime/IFunction.h"
#include <memory>
namespace arm_compute
{
class CLCompileContext;
class CLHOGDetectorKernel;
class ICLTensor;
class ICLHOG;
/** Basic function to execute HOG detector based on linear SVM. This function calls the following OpenCL kernel:
*
* -# @ref CLHOGDetectorKernel
*
* @deprecated This function is deprecated and is intended to be removed in 21.05 release
*
*/
class CLHOGDetector : public IFunction
{
public:
/** Default constructor */
CLHOGDetector();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHOGDetector(const CLHOGDetector &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLHOGDetector &operator=(const CLHOGDetector &) = delete;
/** Allow instances of this class to be moved */
CLHOGDetector(CLHOGDetector &&) = default;
/** Allow instances of this class to be moved */
CLHOGDetector &operator=(CLHOGDetector &&) = default;
/** Default destructor */
~CLHOGDetector();
/** Initialise the kernel's input, output, HOG data object, detection window stride, threshold and index class
*
* @attention The function does not reset the number of values in @ref IDetectionWindowArray so it is caller's responsibility to clear it.
*
* @param[in] input Input tensor. It is the output of @ref CLHOGDescriptor. Data type supported: F32
* @param[in] hog HOG data-object that describes the HOG descriptor
* @param[out] detection_windows Array of @ref DetectionWindow used to store the detected objects
* @param[in] detection_window_stride Distance in pixels between 2 consecutive detection windows in x and y directions.
* It must be multiple of the block stride stored in hog
* @param[in] threshold (Optional) Threshold for the distance between features and SVM classifying plane
* @param[in] idx_class (Optional) Index of the class used for evaluating which class the detection window belongs to
*/
void configure(const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride, float threshold = 0.0f, size_t idx_class = 0);
/** Initialise the kernel's input, output, HOG data object, detection window stride, threshold and index class
*
* @attention The function does not reset the number of values in @ref IDetectionWindowArray so it is caller's responsibility to clear it.
*
* @param[in] compile_context The compile context to be used.
* @param[in] input Input tensor. It is the output of @ref CLHOGDescriptor. Data type supported: F32
* @param[in] hog HOG data-object that describes the HOG descriptor
* @param[out] detection_windows Array of @ref DetectionWindow used to store the detected objects
* @param[in] detection_window_stride Distance in pixels between 2 consecutive detection windows in x and y directions.
* It must be multiple of the block stride stored in hog
* @param[in] threshold (Optional) Threshold for the distance between features and SVM classifying plane
* @param[in] idx_class (Optional) Index of the class used for evaluating which class the detection window belongs to
*/
void configure(const CLCompileContext &compile_context, const ICLTensor *input, const ICLHOG *hog, ICLDetectionWindowArray *detection_windows, const Size2D &detection_window_stride,
float threshold = 0.0f,
size_t idx_class = 0);
// Inherited methods overridden:
void run() override;
private:
std::unique_ptr<CLHOGDetectorKernel> _hog_detector_kernel;
ICLDetectionWindowArray *_detection_windows;
cl::Buffer _num_detection_windows;
};
}
#endif /* ARM_COMPUTE_CLHOGDETECTOR_H */
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