Convert a JPEG image to Excel spreadsheet (e.g. http://bit.ly/QBd4HI)

ImageToXls.java

import java.awt.*;
import java.awt.Image;
import java.awt.image.*;
import java.io.*;
import java.math.*;
import java.util.*;
import java.util.List;
import javax.imageio.*;
import javax.swing.*;

import java.lang.reflect.*;

import jxl.*;
import jxl.format.*;
import jxl.format.Colour;
import jxl.write.*;
import jxl.write.Label;

/**
 * Outputs an Excel version of input images.
 * You need this: http://jexcelapi.sourceforge.net.
 *
 * % javac -g -classpath .:jxl.jar ImageToXls.java
 * % java -classpath .:jxl.jar ImageToXls <image>
 */
public final class ImageToXls {

  public static void main(String[] args) {
    System.exit(new ImageToXls().realMain(args));
  }

  private boolean verbose = false;

  public int realMain(String[] args) {
    if (args == null || args.length == 0) {
      printHelp();
      return 0;
    }
    try {
      go(args);
    } catch (Exception e) {e.printStackTrace(); return 1;}
    return 0;
  }

  private void go(String[] args) throws Exception {
    final List<String> images = new ArrayList<String>();
    for (int i=0; i<args.length;) {
      String arg = args[i++];
      if (arg.startsWith("-v")) {
        verbose = true;
      } else if (arg.startsWith("-h")) {
        printHelp();
        return;
      } else {
        images.add(arg);
      }
    }
    for (String img : images) convert(img);
  }

  private void convert(String image) throws Exception {
    String output = image.replace(".jpg", ".xls");
    note("image: " + image);
    note("output: " + output);
    //
    // create an image and get the array of pixels
    //
    Image img = Toolkit.getDefaultToolkit().createImage(image);
    JButton obs = new JButton(new ImageIcon(img));
    int w = img.getWidth(obs);
    int h = img.getHeight(obs);
    note("size: " + w + "x" + h);
    //
    // get the pixels
    //
    int[] pixels = new int[w*h];
    PixelGrabber pg = new PixelGrabber(img,0,0,w,h,pixels,0,w);
    try {pg.grabPixels();} catch (Exception e) {e.printStackTrace();}
    if ((pg.getStatus() & ImageObserver.ABORT) != 0) return;
    //
    // create the work book
    //
    WorkbookSettings ws = new WorkbookSettings();
    ws.setLocale(new Locale("en", "EN"));
    WritableWorkbook workbook = Workbook.createWorkbook(new File(output),ws);
    WritableSheet sheet = workbook.createSheet(image,0);
    //
    // go over the imgage and write to the work book
    //
    WritableFont font = new WritableFont(WritableFont.ARIAL,4);
    for (int i=0; i<h; i++) {
      for (int j=0; j<w; j++) {
        int c = pixels[i*w+j] & 0xffffff;
        String loc = cellLoc(i,j);
        WritableCellFormat format = new WritableCellFormat(font);
        format.setShrinkToFit(true);
        Colour col = findClosestColor(c);
        format.setBackground(col);
        Label lab = new Label(j,i,"",format);
        sheet.addCell(lab);
      }
    }
    //
    // close
    //
    workbook.write();
    workbook.close();
  }

  private Colour findClosestColor(int c) {
    Colour res = null;
    double min = Double.MAX_VALUE;
    int val = -1;
    final int red   = (c >> 16) & 0xff;
    final int green = (c >>  8) & 0xff;
    final int blue  = (c      ) & 0xff;
    for (Colour col : Colour.getAllColours()) {
      RGB rgb = col.getDefaultRGB();
      double diff = Math.sqrt(Math.pow(rgb.getRed()   - red, 2) +
			      Math.pow(rgb.getGreen() - green, 2) +
			      Math.pow(rgb.getBlue()  - blue, 2));
      if (diff < min) {
        res = col;
        min = diff;
      }
    }
    note(res + " -> " + Integer.toHexString(c));
    return res;
  }

  private String cellLoc(int y, int x) {
    String loc = "Sheet1!";
    if (x < 26) {
      loc += (char)('A'+x);
    } else {
      int first = x/26;
      int rest  = x%26;
      loc += (char)('A' + first);
      loc += (char)('A' + rest);
    }
    loc += y + 1;
    return loc;
  }

  private void printHelp() {
    e(getClass().getName() + " [options] [image]+");
    e("where options include:");
    e("  -h    print this message");
    e("  -v    be loud");
  }

  private void e(String msg) {
    System.err.println(msg);
  }

  private void note(Object msg) {
    if (verbose) {
      System.err.println("[" + getClass().getName() + "] " + 
			 String.valueOf(msg));
    }
  }
}

hi spudtrooper,
please help me run this code is not? thanks a lot!