第一开始只能支持小尺寸的图片，宽度200或者以下的，稍微大点的出来的效果就走样了。
于是我便在转码之前改变了一下图片的大小。
效果如下
原图
转后图
废话不多说，呈上代码。
package com;
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
/**
* 图片转化Ascii
*/
public class AsciiPic {
/*
* 将image转换成bufferimage
*/
public static BufferedImage toBufferedImage(Image image) {
if (image instanceof BufferedImage) {
return (BufferedImage)image;
}
// 加载所有像素
image = new ImageIcon(image).getImage();
BufferedImage bimage = null;
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
try {
int transparency = Transparency.OPAQUE;
// 创建buffer图像
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency);
} catch (HeadlessException e) {
e.printStackTrace();
}
if (bimage == null) {
int type = BufferedImage.TYPE_INT_RGB;
bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
}
// 复制
Graphics g = bimage.createGraphics();
// 赋值
g.drawImage(image, 0, 0, null);
g.dispose();
return bimage;
}
public static Image creatImage(String Imgpath) {
Image srcImg = null;
try {
srcImg = ImageIO.read(new FileInputStream(Imgpath));
} catch (FileNotFoundException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
//取源图
int width = 200; //假设要缩小到200点像素
int height = srcImg.getHeight(null)*200/srcImg.getWidth(null);//按比例，将高度缩减
Image smallImg =srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH);//缩小
return smallImg;
}
/**
* @param bfimage 图片路径
*/
public static void createAsciiPic(BufferedImage bfimage) throws IOException {
final String base = "@#&$%*o!;.";// 字符串由复杂到简单
final BufferedImage image = bfimage;
for (int y = 0; y < image.getHeight(); y += 2) {
for (int x = 0; x < image.getWidth(); x++) {
final int pixel = image.getRGB(x, y);
final int r = (pixel & 0xff0000) >> 16, g = (pixel & 0xff00) >> 8, b = pixel & 0xff;
final float gray = 0.299f * r + 0.578f * g + 0.114f * b;
final int index = Math.round(gray * (base.length() + 1) / 255);
System.out.print(index >= base.length() ? " " : String.valueOf(base.charAt(index)));
}
System.out.println();
}
}
public static void main(final String[] args) {
try {
AsciiPic.createAsciiPic(toBufferedImage(creatImage("/Users/liurenkui/Desktop/boy.jpeg")));
} catch (IOException e) {
e.printStackTrace();
}
}
}
Ascii输出在控制台，若想直接保存图片可进行修改
来自CSDN作者：VERMAN_S
