imagefilter.java

JAVA 实现虹膜识别（完整）

package IrisRecog;

/**
 * ImageFilter.java
 * 
 * Extends the FileFilter swing class to provided functionality for retriving
 * and selecting only jpg/jpeg image files in the ImageFileChooser.
 *
 * @owner Michael Huffman
 * @author Team 6: A. Bare, I. Chaugule,M. Huffman, M. Pearson, C. Schell
 * @version 0.0.1
 *
 * 	CSC 480 Section 2
 * 	Fall 2005
 * 	10/2/05
 *
 * Edit History:
 *  10/2/05 - created
 *  10/9/05 - documented and commented
 */
  
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.*;

public class ImageFilter extends FileFilter 
{
	/**	 
	 * Determines if a file is accepted by this filter
	 *
	 * @param f The file that is being attempted to be acccepted
	 * @return true if the file is accepted, false otherwise
	 */
    public boolean accept(File f) 
    {
    	//Accept the file if it is a directory
        if(f.isDirectory())
        	return true;
        
        //Save the file extension
        String str_Extension = Functions.getExtension(f);
        	
        //If the extension is not null and it is either JPEG or JPG then accept the file, otherwise reject it
        if(str_Extension != null && (str_Extension.equals(Constants.STR_JPEG_EXTENSION) || str_Extension.equals(Constants.STR_JPG_EXTENSION)) )
            return true;
		else
        	return false;
    }

	/**
	 * Return the description of this file filter
	 * 
	 * @return the description 
	 */
    public String getDescription() 
    {
        return "JPEG Image File Formats ...";
    }
}