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/**
* Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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 __IMAGECONTOURSTABILIZATOR_H__
#define __IMAGECONTOURSTABILIZATOR_H__
#include "ImageConfig.h"
#include <opencv/cv.h>
/**
* @file ImageContourStabilizator.h
* @brief This file contains functionality for image contour stabilization
* during tracking.
*/
namespace MediaVision {
namespace Image {
/**
* @class ImageContourStabilizator
* @brief This class contains functionality for image contour stabilization
* during tracking.
*
* @since_tizen 3.0
*/
class ImageContourStabilizator {
public:
/**
* @brief @ref ImageContourStabilizator default constructor.
*
* @since_tizen 3.0
*/
ImageContourStabilizator();
/**
* @brief Stabilizes @a contour.
*
* @since_tizen 3.0
* @remarks Call this function alternately for each contour from sequence
* @param [in,out] contour @ref contour, which will be stabilized
* @param [in] params configuration parameters
* @return true if contour is stabilized, otherwise return false
*/
bool stabilize(
std::vector<cv::Point2f>& contour,
const StabilizationParams& params);
/**
* @brief Resets stabilization process.
*
* @since_tizen 3.0
* @remarks Call it before starting track on the new sequence of contours.
*/
void reset(void);
private:
std::vector<cv::Point2f> computeStabilizedQuadrangleContour(void);
private:
static const size_t MovingHistoryAmount = 3u;
std::vector<float> m_speeds;
std::vector<size_t> m_currentCornersSpeed;
std::deque<std::vector<cv::Point2f> > m_movingHistory;
std::vector<cv::Point2f> m_lastStabilizedContour;
size_t m_currentHistoryAmount;
int m_tempContourIndex;
std::vector<float> m_priorities;
bool m_isPrepared;
};
} /* Image */
} /* MediaVision */
#endif /* __IMAGECONTOURSTABILIZATOR_H__ */
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