How can I convert Mat to Bitmap?(Run on linux ,not android)

Question

I'm using OpenCV read image to Mat with Java, then put image pixels to JNI, however, the JNI required to use Bitmap format

How can I convert Mat to Bitmap with Java? It should run on Ubuntu.

Answer 1

Have you already tried?

Bitmap bmp = null;
Mat tmp = new Mat (height, width, CvType.CV_8U, new Scalar(4));
try {
    //Imgproc.cvtColor(seedsImage, tmp, Imgproc.COLOR_RGB2BGRA);
    Imgproc.cvtColor(seedsImage, tmp, Imgproc.COLOR_GRAY2RGBA, 4);
    bmp = Bitmap.createBitmap(tmp.cols(), tmp.rows(), Bitmap.Config.ARGB_8888);
    Utils.matToBitmap(tmp, bmp);
}
catch (CvException e){Log.d("Exception",e.getMessage());}

from Here