Page 226 - The Definitive Guide to Building Java Robots

Preston_5564C06.fm Page 207 Friday, September 23, 2005 5:13 AM

CHAPTER 6 ■ VISION 207

Example 6-23. ColorGramCalibration.java
package com.scottpreston.javarobot.chapter6;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;
import java.util.Arrays;

import javax.swing.JFrame;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageDecoder;

public class ColorGramCalibration extends JFrame {

// image to calibrate
private BufferedImage currentImage;
// panel to hold image
private ImagePanel imagePanel;
// count of colors
private int maxCount = 0;
// values of histogram mean values
private int[] meanValues;
// current best ColorGram
private ColorGram bestColorGram = new ColorGram();
// mean values for color components
private int redAvg = 0;
private int greenAvg = 0;
private int blueAvg = 0;
// initial threshold
private double threshhold = .95;
// to display or not
private boolean toShow = true;
private ImageProcessor imageProcessor = new ImageProcessor();

public ColorGramCalibration(String fileName) throws Exception {
init(fileName, true);
}

public ColorGramCalibration(String fileName, boolean gui) throws Exception {
init(fileName, gui);
}