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3rdparty/opencv-4.5.4/modules/stitching/src/timelapsers.cpp 3.63 KB
f4334277   Hu Chunming   提交3rdparty
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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*/
  
  #include "precomp.hpp"
  #include "opencl_kernels_stitching.hpp"
  
  namespace cv {
  namespace detail {
  
  Ptr<Timelapser> Timelapser::createDefault(int type)
  {
      if (type == AS_IS)
          return makePtr<Timelapser>();
      if (type == CROP)
          return makePtr<TimelapserCrop>();
      CV_Error(Error::StsBadArg, "unsupported timelapsing method");
  }
  
  
  void Timelapser::initialize(const std::vector<Point> &corners, const std::vector<Size> &sizes)
  {
      dst_roi_ = resultRoi(corners, sizes);
      dst_.create(dst_roi_.size(), CV_16SC3);
  }
  
  void Timelapser::process(InputArray _img, InputArray /*_mask*/, Point tl)
  {
      CV_INSTRUMENT_REGION();
  
      dst_.setTo(Scalar::all(0));
  
      Mat img = _img.getMat();
      Mat dst = dst_.getMat(ACCESS_RW);
  
      CV_Assert(img.type() == CV_16SC3);
      int dx = tl.x - dst_roi_.x;
      int dy = tl.y - dst_roi_.y;
  
      for (int y = 0; y < img.rows; ++y)
      {
          const Point3_<short> *src_row = img.ptr<Point3_<short> >(y);
  
          for (int x = 0; x < img.cols; ++x)
          {
              if (test_point(Point(tl.x + x, tl.y + y)))
              {
                  Point3_<short> *dst_row = dst.ptr<Point3_<short> >(dy + y);
                  dst_row[dx + x] = src_row[x];
              }
          }
      }
  }
  
  
  bool Timelapser::test_point(Point pt)
  {
      return dst_roi_.contains(pt);
  }
  
  
  void TimelapserCrop::initialize(const std::vector<Point> &corners, const std::vector<Size> &sizes)
  {
      dst_roi_ = resultRoiIntersection(corners, sizes);
      dst_.create(dst_roi_.size(), CV_16SC3);
  }
  
  
  } // namespace detail
  } // namespace cv