弄了一下午，始終不能得到較好的效果

主要是計算灰度值，再計算出對應字符

灰度值計算方法：

效果：

原圖:

代碼

package com.j;import com.sun.jndi.toolkit.url.UrlUtil;import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.net.URI; import java.util.Scanner;/*** @author joker* @version 1.0* @description 將圖片轉為Ascii,* 灰度算法1-->0.299：0.587：0.114* 灰度算法2-->平均值* @date 2020-04-07 -- 11:28*/ public class ImgAscii {//ascii字符表，美觀的影響先決之一//BBB@@@###$$$%%%OOOEEE!!!===***^^^```+++,,,---...static char[] ascii = "@#&$%*o!;.".toCharArray();//默認路徑static String staticUrl = "C:\\Users\\Administrator\\Desktop\\";public static void main(String[] args) {for (int i = 0; i < 10; i++) {//路徑獲取Scanner scanner = new Scanner(System.in);System.out.println("輸入對應路徑：");String Url = scanner.next();//處理圖片deal(Url);System.out.println("判斷成功");}}/*** @param Url 對應路徑*/public static void deal(String Url) {BufferedImage image = null;//獲取圖片try {image = ImageIO.read(new File(staticUrl + Url));StringBuilder stringBuilder = new StringBuilder("");//獲取像素,橫向//i,j影響結果大小效果for (int i = 0; i < image.getHeight(); i += 2) {for (int j = 0; j < image.getWidth(); j += 1) {//像素點final int rgbpx = image.getRGB(j, i);//計算像素final int r = (rgbpx & 0xff0000) >> 16, g = (rgbpx & 0xff00) >> 8, b = (rgbpx & 0xff);//灰度計算final float grey = r * 0.299f + g * 0.587f + b * 0.114f;//final int grey = (r + g + b) / 3;//System.out.println(grey);//灰度轉換為對應字符final int index = Math.round(grey * (ascii.length + 1) / 255);//final int index = grey * (ascii.length + 1)/255;if (index >= ascii.length) {stringBuilder.append(" ");//System.out.print(" ");} else {stringBuilder.append(ascii[index]);//System.out.print(ascii[index]);}}stringBuilder.append("\n");//System.out.println();}File AscImg = new File(System.getProperty("user.dir") + "\\temp.txt");if (!AscImg.exists()) {AscImg.createNewFile();}FileWriter w = new FileWriter(AscImg);BufferedWriter writer = new BufferedWriter(w);writer.write(stringBuilder.toString());writer.close();} catch (IOException e) {e.printStackTrace();}} }

有點可遠觀，不可褻玩的感覺

總結

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