BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)));
		int width = bi.getWidth();//原圖寬度
		int height = bi.getHeight();//原圖高度
		int minx = bi.getMinX();//BufferedImage 原圖 最小X坐標(biāo)
		int miny = bi.getMinY(); //BufferedImage 原圖 最小Y坐標(biāo)
		for (int i = miny; i < height; i += 8) {//遍歷圖片中的像素點，用字符判斷像素范圍來替換
			for (int j = minx; j < width; j += 8) {
				int pixel = bi.getRGB(j, i); // 下面三行代碼將一個數(shù)字轉(zhuǎn)換為RGB數(shù)字
				int red = (pixel & 0xff0000) >> 16;
				int green = (pixel & 0xff00) >> 8;
				int blue = (pixel & 0xff);
				double gray = 0.299 * red + 0.578 * green + 0.114 * blue; //圖片變灰計算公式
				char c = toChar((int) gray); //根據(jù)計算出來的gray值返回不同字符
				bufferedWriter.write(c);
			}
			bufferedWriter.newLine();
		}
		//輸出圖片

// initialize caches
AsciiImgCache smallFontCache = AsciiImgCache.create(new Font("Courier",Font.BOLD, 6));
// initialize ssimStrategy
BestCharacterFitStrategy ssimStrategy = new StructuralSimilarityFitStrategy();

String srcFilePath = "examples/xxx.gif";
String disFilePath = "examples/xxx.gif";
int delay = 100;//ms

GifToAsciiConvert asciiConvert = new GifToAsciiConvert(smallFontCache, ssimStrategy);

asciiConvert.convertGitToAscii(srcFilePath, disFilePath, delay,0);