1-错误
2-错误原因
opencv4.x以上,有些宏,API名字改了,需要改为新的
3-解决方案
CV_LOAD_IMAGE_UNCHANGED 改为 cv::IMREAD_UNCHANGED
CV_LOAD_IMAGE_GRAYSCALE 改为 cv::IMREAD_GRAYSCALE
CV_LOAD_IMAGE_COLOR 改为 cv::IMREAD_COLOR
CV_LOAD_IMAGE_ANYDEPTH 改为 cv::IMREAD_ANYDEPTH
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