OpenCV图像转换相关(cvtColor函数)

The conventional ranges for R, G, and B channel values are:

  • 0 to 255 for CV_8U images
  • 0 to 65535 for CV_16U images
  • 0 to 1 for CV_32F images

所以当CV_8UC1转换为CV_32F时需要乘1/255;反之乘255;

当CV_8UC1转换为CV_8UC3时:cvtColor(src,dst,CV_GRAY2BGR)

 

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