Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.graphics.Bitmap;

import android.graphics.Color;

import android.util.Log;

public class Main {
    public static float getValue(Bitmap bitmap, int x, int y) {
        if (x < 0 || y < 0 || x > (bitmap.getWidth() - 1) || y > (bitmap.getHeight() - 1))
            Log.d("GET PIXEL ERROR!!!!!!!!!!!!",
                    "X,Y is " + x + "," + y + "\tmax X,Y is" + bitmap.getWidth() + "," + bitmap.getHeight());
        int color = bitmap.getPixel(x, y);
        int red = Color.red(color);
        int green = Color.green(color);
        int blue = Color.blue(color);
        float intensity = (float) (0.299 * red + 0.587 * green + 0.114 * blue);
        return intensity;
    }
}