opecv Mat 转 BufferImage

记录一下

  public static Image toBufferedImage(Mat m) {
        int type = 10;
        if (m.channels() > 1) {
            type = 5;
        }

        int bufferSize = m.channels() * m.cols() * m.rows();
        byte[] b = new byte[bufferSize];
        m.get(0, 0, b);
        BufferedImage image = new BufferedImage(m.cols(), m.rows(), type);
        byte[] targetPixels = ((DataBufferByte)image.getRaster().getDataBuffer()).getData();
        System.arraycopy(b, 0, targetPixels, 0, b.length);
        return image;
    }

—摘自org.opencv.highgui.HighGui