package com.test;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
/**
* @author denis.huang
* @since 2017/8/10
*/
public class AsciiPic {
/**
* @param imgPath 图片路径
* @param outPath 输出路径
* @param acc 精度,最小1
*/
public static void createAsciiPic(String imgPath, String outPath, int acc) {
String base = "#@&$%87Oo!;^~.";// 字符串由复杂到简单
try {
FileWriter fw = new FileWriter(outPath);
BufferedImage image = ImageIO.read(new File(imgPath));
for (int y = 0; y < image.getHeight(); y += 2*acc) {
for (int x = 0; x < image.getWidth(); x += acc) {
int pixel = image.getRGB(x, y);
int r = (pixel & 0xff0000) >> 16;
int g = (pixel & 0xff00) >> 8;
int b = pixel & 0xff;
float gray = 0.299f * r + 0.578f * g + 0.114f * b;
int index = Math.round(gray * (base.length() + 1) / 255);
fw.write(index >= base.length() ? " " : String.valueOf(base.charAt(index)));
}
fw.write("\r\n");
}
fw.close();
} catch (final IOException e) {
e.printStackTrace();
}
}
public static void main(final String[] args) {
AsciiPic.createAsciiPic("C:\\133859.jpg", "D:\\123.txt", 10);
}
}