Displaying image and converting to grayscale - OpenCV for Android, Java API

Question

I\'m writing an Android app in Eclipse that uses the OpenCV4Android API. How can I display a Mat image easily, for debugging only? In C++, according to the OpenCV

Answer 1

Summary:

Convert image to grayscale: Imgproc.cvtColor(image, image, Imgproc.COLOR_BGR2GRAY);

Display image: see here and here.