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我正在做的是=>我正在拍摄图像，然后我正在计算拍摄图像的倾斜角度，然后我根据计算出的倾斜角度旋转该图像。一切正常，但问题是我在我的代码中使用了cv::RotatedRect 并且因此我的结果图像也包含该框，我想从我的结果图像中删除该框，任何人都有任何想法我该如何删除那个盒子..？我在下面指定我的代码..请帮助..！谢谢..！[我无法上传生成的图像，因为我是 StackOverflow 的新手，但我无权上传图像。]

// Function to Find Skew angle.
 double compute_skew(const char* filename)
   {

// Load in grayscale.
  cv::Mat img = cv::imread(filename, 0);

  // Binarize
  cv::threshold(img, img, 225, 255, cv::THRESH_BINARY);

  // Invert colors
  cv::bitwise_not(img, img);

  cv::Mat element = cv::getStructuringElement(cv::MORPH_RECT, cv::Size(5, 3));
  cv::erode(img, img, element);

  std::vector<cv::Point> points;
    cv::Mat_<uchar>::iterator it = img.begin<uchar>();
    cv::Mat_<uchar>::iterator end = img.end<uchar>();
    for (; it != end; ++it)
      if (*it)
        points.push_back(it.pos());

   cv::RotatedRect box = cv::minAreaRect(cv::Mat(points));

   double angle = box.angle;
    if (angle < -45.)
      angle += 90.;

    cv::Point2f vertices[4];
      box.points(vertices);
      for(int i = 0; i < 4; ++i)
        cv::line(img, vertices[i], vertices[(i + 1) % 4], cv::Scalar(255, 0, 0), 1, CV_AA);

      std::cout << "File **************Angle***************** " << filename << ": " << angle << std::endl;


return angle;

}

// Function to rotate image image
void deskew(const char* filename, double angle)
 {

    //angle = 90;
  cv::Mat img = cv::imread(filename, 0);

  cv::bitwise_not(img, img);

  std::vector<cv::Point> points;
  cv::Mat_<uchar>::iterator it = img.begin<uchar>();
  cv::Mat_<uchar>::iterator end = img.end<uchar>();
  for (; it != end; ++it)
    if (*it)
      points.push_back(it.pos());

 cv::RotatedRect box = cv::minAreaRect(cv::Mat(points));

 cv::Mat rot_mat = cv::getRotationMatrix2D(box.center, angle, 1);

 cv::Mat rotated;
 cv::warpAffine(img, rotated, rot_mat, img.size(), cv::INTER_CUBIC);

cv::bitwise_not(rotated, rotated);
imwrite(filename,rotated);

}

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