Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.graphics.Bitmap;

public class Main {
    /** Sets pixels in the given bitmap to a grayscale image from the byte array from a camera preview,
     * assumed to be in YUV (NV21) format with brightness pixels first.
     */
    public static Bitmap fillGrayscaleBitmapFromCameraData(Bitmap bitmap, byte[] cdata, int width, int height) {
        int[] pixels = new int[cdata.length];
        for (int i = 0; i < cdata.length; i++) {
            int g = 0xff & cdata[i];
            pixels[i] = (255 << 24) + (g << 16) + (g << 8) + g;
        }
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }
}