ico图片转换

 

/*
 * Test.java
 *
 * Created on January 19, 2007, 11:15 AM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package net.sf.image4j.example;

import java.io.IOException;

/**
 *
 * @author ian
 */
public class Test {
 
  public static void main(String[] args) {
   
    // input and output file names
   
    String strInFile = "input.ico";
    String strOutFile = "output.ico";
               
    try {
     
      /*****  decode ICO and save images as BMP and PNG ****/
   
      System.out.println("Decoding ICO file '"+strInFile+"'.");
     
      java.io.File inFile = new java.io.File(strInFile);
           
      // load and decode ICO file
     
      java.util.List<java.awt.image.BufferedImage> images = net.sf.image4j.codec.ico.ICODecoder.read(inFile);
     
      System.out.println("ICO decoding...OK");
     
      // display summary of decoded images
     
      System.out.println("  image count = "+images.size());
      System.out.println("  image summary:");
      for (int i = 0; i < images.size(); i++) {
        java.awt.image.BufferedImage img = images.get(i);
        int bpp = img.getColorModel().getPixelSize();
        int width = img.getWidth();
        int height = img.getHeight();
        System.out.println("    # "+ i + ": size="+width+"x"+height+"; colour depth="+bpp+" bpp");
      }
     
      // save images as separate BMP and PNG files
     
      System.out.println("  saving separate images:");
     
      String format = "png";
     
      for (int j = 0; j < images.size(); j++) {
        java.awt.image.BufferedImage img = images.get(j);
        String name = strInFile + "-"+ j;
        java.io.File bmpFile = new java.io.File(name+".bmp");
        java.io.File pngFile = new java.io.File(name+".png");
       
        // write BMP
        System.out.println("    writing '"+name+".bmp'");
        net.sf.image4j.codec.bmp.BMPEncoder.write(img, bmpFile);
       
        // write PNG
        System.out.println("    writing '"+name+".png'");
        javax.imageio.ImageIO.write(img, format, pngFile);        
      }
     
      System.out.println("BMP encoding...OK");
     
      /***** reload BMP images *****/
     
      System.out.println("  reloading BMP files:");
     
      java.util.List<java.awt.image.BufferedImage> images2 =
          new java.util.ArrayList<java.awt.image.BufferedImage>(images.size());
     
      for (int k = 0; k < images.size(); k++) {
        String name = strInFile + "-" + k + ".bmp";
        java.io.File file = new java.io.File(name);
       
        //read BMP
        System.out.println("    reading '"+name+"'");
        java.awt.image.BufferedImage image = net.sf.image4j.codec.bmp.BMPDecoder.read(file);
        images2.add(image);
      }
     
      System.out.println("BMP decoding...OK");
     
      /*****  encode images and save as ICO  *****/
     
      System.out.println("Encoding ICO file '"+strOutFile+"'.");
   
      java.io.File outFile = new java.io.File(strOutFile);
     
      net.sf.image4j.codec.ico.ICOEncoder.write(images, outFile);
     
      System.out.println("ICO encoding...OK");
     
    } catch (IOException ex) {
      ex.printStackTrace();
    }
   
  }
 
  private static void usage() {
   
  }
 
}