java实现图像转码为字符画的方法

本文实例为大家分享了java实现图像转码为字符画的具体代码，供大家参考，具体内容如下

public class ImageProcesser { 
  
 private static final char[] charset1 = {'M','8','V','|',':','.',' '}; //默认字符素材集 
 private char[] charset; //字符画素材集 
 private String imgString = ""; //储存转化后的字符串 
  
  
 //使用指定字符集构造 
 public ImageProcesser(char[] charset){ 
  this.charset = charset; 
 } 
 //使用默认字符集构造 
 public ImageProcesser(){ 
  this.charset = charset1; 
 } 
  
 public String getImgString(){ 
  return imgString; 
 } 
 
  
 public ImageProcesser toBitmapConvert(String imagepath){ 
  return toBitmapConvert(new File(imagepath)); 
 } 
 public ImageProcesser toBitmapConvert(File imageFile){ 
   
  StringBuffer sb = new StringBuffer(); 
  if(!imageFile.exists()){ //当读取的文件不存在时，结束程序 
   System.out.println("File is not exists!"); 
   System.exit(1); 
  } 
  Color color; 
  try{ 
   BufferedImage buff = ImageIO.read(imageFile); //将图片文件装载如BufferedImage流 
   buff = compressImage(buff); 
  
   int bitmapH = buff.getHeight(); 
   int bitmapW = buff.getWidth(); 
    
   //逐行扫描图像的像素点，读取RGB值，取其平均值，并从charset中获取相应的字符素材，并装载到sb中 
   for(int y=0; yh){ 
   new_W = 100; 
   new_H = 100*h/w ; 
  }else{ 
   new_H = 100; 
   new_W = 100*w/h; 
  } 
  BufferedImage smallImg = new BufferedImage(new_W,new_H,srcImg.getType()); 
  Graphics g = smallImg.getGraphics(); 
  g.drawImage(srcImg,0,0,new_W,new_H,null); 
  g.dispose(); 
  return smallImg; 
 } 
  
  
 public void saveAsTxt(String fileName){ 
  try{ 
   PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(fileName))); 
   for(int i = 0;i

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