laplace2.java

计算机图象处理的java源代码,可以实现图象的放大缩小等基本功能

package image;
import   com.sun.image.codec.jpeg.JPEGCodec; 
import   com.sun.image.codec.jpeg.JPEGImageEncoder; 
import   java.awt.Graphics; 
import   java.awt.Image; 
import java.awt.Toolkit;
import   java.awt.image.BufferedImage; 
import java.awt.image.ImageObserver;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;
import java.awt.image.Raster;
import   java.io.*; 

import   javax.imageio.ImageIO; 
import javax.swing.ImageIcon;
public class Laplace2 extends BasicImage {

	public Laplace2() {
		super();
		// TODO 自动生成构造函数存根
	}
	public Laplace2(String fileName) {
		super(fileName);
		// TODO 自动生成构造函数存根
	}
	/**
	 * @param args
	 */
	 public int[] laplace2DFileter(int []data,int width,int height){
		    
	     int filterData[]=new int[data.length];
	     int min=10000;
	     int max=-10000;
	     for(int i=0;i<height;i++){
	      for(int j=0;j<width;j++){
	       if(i==0 || i==height-1 || j==0 || j==width-1)
	               filterData[i*width+j]=data[i*width+j];
	       else
	        filterData[i*width+j]=9*data[i*width+j]-data[i*width+j-1]-data[i*width+j+1]
	                             -data[(i-1)*width+j]-data[(i-1)*width+j-1]-data[(i-1)*width+j+1]
	                             -data[(i+1)*width+j]-data[(i+1)*width+j-1]-data[(i+1)*width+j+1];       
	       if(filterData[i*width+j]<min)
	        min=filterData[i*width+j];
	       if(filterData[i*width+j]>max)
	        max=filterData[i*width+j];
	      }  
	     }
//	     System.out.println("max: "+max);
//	     System.out.println("min: "+min);
	     
	     for(int i=0;i<width*height;i++){
	      filterData[i]=(filterData[i]-min)*255/(max-min);
	     }
	     return filterData;
	    }
	public Image imageProcess()
	{
		int dataProcessed []=this.laplace2DFileter(this.imageData,this.wideth,this.height);
		
		imageProcessed=this.createImage(dataProcessed);
		
		return imageProcessed;
	}
		
		
		public  void saveImageAfterProcess()
		{
			 System.out.println("-------------imageProcess()");
			this.saveImage("d:\\zyy.jpg");
			
		}
		
		public  void showImageAfterProcess()
		{}
	public static void main(String[] args) {
		// TODO 自动生成方法存根

		Laplace2 zyy=new Laplace2("003.jpg");
		zyy.imageProcess();
		zyy.saveImage("d:\\zyy.jpg");
		System.out.println("-------------end");
		
	}

}