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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef OPENCV_STITCHING_AUTOCALIB_HPP
#define OPENCV_STITCHING_AUTOCALIB_HPP
#include "opencv2/core.hpp"
#include "matchers.hpp"
namespace cv {
namespace detail {
//! @addtogroup stitching_autocalib
//! @{
/** @brief Tries to estimate focal lengths from the given homography under the assumption that the camera
undergoes rotations around its centre only.
@param H Homography.
@param f0 Estimated focal length along X axis.
@param f1 Estimated focal length along Y axis.
@param f0_ok True, if f0 was estimated successfully, false otherwise.
@param f1_ok True, if f1 was estimated successfully, false otherwise.
See "Construction of Panoramic Image Mosaics with Global and Local Alignment"
by Heung-Yeung Shum and Richard Szeliski.
*/
void CV_EXPORTS focalsFromHomography(const Mat &H, double &f0, double &f1, bool &f0_ok, bool &f1_ok);
/** @brief Estimates focal lengths for each given camera.
@param features Features of images.
@param pairwise_matches Matches between all image pairs.
@param focals Estimated focal lengths for each camera.
*/
void CV_EXPORTS estimateFocal(const std::vector<ImageFeatures> &features,
const std::vector<MatchesInfo> &pairwise_matches,
std::vector<double> &focals);
bool CV_EXPORTS calibrateRotatingCamera(const std::vector<Mat> &Hs, Mat &K);
//! @} stitching_autocalib
} // namespace detail
} // namespace cv
#endif // OPENCV_STITCHING_AUTOCALIB_HPP
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