Chapter 7, Problem 25E

Explanation of Solution

Method “blur()” to makes the image blurry:

import java.awt.Graphics;

import java.awt.Image;

//define the class

public class Test

{

    //define the static method

    public static void main(String[] args)

    {

        //Create an object for DrawingPanel

DrawingPanel drawpanel = new DrawingPanel(300, 300);

        //Create an object for Image

Image image = drawpanel.loadImage("Smiles.png");

        //Create an object for Graphics

        Graphics graph = drawpanel.getGraphics();

        graph.drawString("Hello, world!", 150, 20);

        //Set the panel

        graph.drawImage(image, 50, 50, drawpanel);

        //Call the method

        blur(drawpanel);

    }

    //Definition of method blur

    public static void blur(DrawingPanel panel)

    {

        //Create an object for panel

        int[][] pixels = panel.getPixelsRGB();

        //Create an object for length

int[][] newPixels = new int[pixels.length][pixels[0].length];

        //Traverse the row

        for (int row = 0; row < pixels.length; row++)

        {

            //Traverse the column

for (int col = 0; col < pixels[0].length; col++)

            {

            //Declare the required variable

            int redsum = 0;

            int greensum = 0;

            int bluesum = 0;

            int count = 0;

            //Traverse the row

            for (int r = row - 1; r <= row + 1; r++)

            {

            //Traverse the column

            for (int c = col - 1; c <= col + 1; c++)

                    {

                //Traverse the row

if (r >= 0 && r < pixels...