get Mosaic Bitmap - Android Graphics

Android examples for Graphics:Bitmap Paint

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Description

get Mosaic Bitmap

Demo Code


//package com.java2s;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Bitmap.Config;

public class Main {

    public static Bitmap getMosaic(Bitmap bitmap) {
        int width = bitmap.getWidth();
        int height = bitmap.getHeight();
        int radius = 10;

        Bitmap mosaicBitmap = Bitmap.createBitmap(width, height,
                Config.ARGB_8888);//from   w ww . j  av a 2 s .  co m
        Canvas canvas = new Canvas(mosaicBitmap);

        int horCount = (int) Math.ceil(width / (float) radius);
        int verCount = (int) Math.ceil(height / (float) radius);

        Paint paint = new Paint();
        paint.setAntiAlias(true);

        for (int horIndex = 0; horIndex < horCount; ++horIndex) {
            for (int verIndex = 0; verIndex < verCount; ++verIndex) {
                int l = radius * horIndex;
                int t = radius * verIndex;
                int r = l + radius;
                if (r > width) {
                    r = width;
                }
                int b = t + radius;
                if (b > height) {
                    b = height;
                }
                int color = bitmap.getPixel(l, t);
                Rect rect = new Rect(l, t, r, b);
                paint.setColor(color);
                canvas.drawRect(rect, paint);
            }
        }
        canvas.save();

        return mosaicBitmap;
    }
}

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