OpenCV Error: Assertion failed
2016-12-14 09:53
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OpenCV越界问题： OpenCV Error: Assertion failed (0 <= roi.x && 0 <= roi.width && roi.x + roi.width <= m.cols && 0 <= roi.y && 0 <= roi.height && roi.y + roi.height <= m.rows) in cv::Mat::Mat(const cv::Mat&, const cv::Rect&), file C:/build/2_4_PackSlave-win32-vc11-shared/opencv/modules/core/src/matrix.cpp, line 323 出现问题的原因是：
图像的ROI区域超过了图像的尺寸，即 roi.x + roi.width > m.cols && roi.y + roi.height > m.rows
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