private void findAllNeedConvert(String path){
		File file=new File(path);
		if(file.isDirectory()){
			FilenameFilter filter=new AwkFilenameFilter("12\\d{4}");
			File[] folders=file.listFiles(filter);
			this.images=new ArrayList<Image>();
			for(File f:folders){
				initImages(f);
			}
		}
	}