Converting `BufferedImage` to `Mat` in OpenCV

Question

How can I convert a BufferedImage to a Mat in OpenCV?

I\'m using the JAVA wrapper for OpenCV(not JavaCV

Answer 1

This one worked fine for me, and it takes from 0 to 1 ms to be performed.

public static Mat bufferedImageToMat(BufferedImage bi) {
  Mat mat = new Mat(bi.getHeight(), bi.getWidth(), CvType.CV_8UC3);
  byte[] data = ((DataBufferByte) bi.getRaster().getDataBuffer()).getData();
  mat.put(0, 0, data);
  return mat;
}