Convolve2

C:\ece595_06\class16>java Convolve2

test3.png

  0  23  46  69  93 116 139 162 186 209 232
  0  23  46  69  93 116 139 162 186 209 232
  0  23  49 155 225 229 191 165 186 209 232
  0  23 145 232 232 232 232 201 186 209 232
  0  23 223 232 232 232 232 230 186 209 232
  0  23 223 232 232 232 232 230 186 209 232
  0  23 145 232 232 232 232 201 186 209 232
  0  23  49 155 225 229 191 165 186 209 232
  0  23  46  69  93 116 139 162 186 209 232
  0  23  46  69  93 116 139 162 186 209 232
  0  23  46  69  93 116 139 162 186 209 232

convolution mask

  1   2   1
  2   4   2
  1   2   1

filtered image

  5  23  46  69  92 116 139 162 185 209 226
  5  23  51  88 121 141 152 165 185 209 226
  5  29  80 142 185 196 187 180 188 209 226
  5  46 129 199 226 228 218 201 195 209 226
  5  62 165 224 232 232 229 215 200 209 226
  5  62 165 224 232 232 229 215 200 209 226
  5  46 129 199 226 228 218 201 195 209 226
  5  29  80 142 185 196 187 180 188 209 226
  5  23  51  88 121 141 152 165 185 209 226
  5  23  46  69  92 116 139 162 185 209 226
  5  23  46  69  92 116 139 162 185 209 226

Convolve2.java

import java.awt.image.*;
import java.awt.color.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.JFrame;


public class Convolve2 {
    public static void main(String [] args) {

	String filename = "test3.png";
	if (args.length>0) filename = args[0];

	showImage f1 = new showImage(filename);
	f1.setLocation(10,10);
	f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	int w = f1.getWidth();
	int h = f1.getHeight();
	listImage.listGray(f1.img,filename);
	//int mask[][] = { {-1, 0, 1},{-2, 0, 2},{-1, 0, 1} };
	int mask[][] = { {1, 2, 1}, {2, 4, 2}, {1, 2, 1} };;
	Convolve c = new Convolve(mask);
	c.setScale(16);
	c.showMatrix(mask,"convolution mask");
	BufferedImage outp = c.doConvolve(f1.img);
	showImage f2 = new showImage(outp,"gray version");
	f2.setLocation(20+w,10);
	f2.writeImage("out2","png");
	listImage.listGray(f2.img,"filtered image");
		
    }
}

Maintained by John Loomis, updated Tue Oct 15 08:45:03 2013