pyhon 实现图片转换成字符画

#coding=utf-8from PIL import Imageimport argparse

#命令行输入参数处理parser = argparse.ArgumentParser()

parser.add_argument(‘file‘)     #输入文件parser.add_argument(‘-o‘, ‘--output‘)   #输出文件parser.add_argument(‘--width‘, type = int, default = 80) #输出字符画宽parser.add_argument(‘--height‘, type = int, default = 80) #输出字符画高

#获取参数args = parser.parse_args()

IMG = args.fileWIDTH = args.widthHEIGHT = args.heightOUTPUT = args.output

ascii_char = list("[email protected]%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`‘. ")

# 将256灰度映射到70个字符上def get_char(r,g,b,alpha = 256):    if alpha == 0:        return ‘ ‘    length = len(ascii_char)    gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b)

unit = (256.0 + 1)/length    return ascii_char[int(gray/unit)]

if __name__ == ‘__main__‘:

im = Image.open(IMG)    im = im.resize((WIDTH,HEIGHT), Image.NEAREST)

txt = ""

for i in range(HEIGHT):        for j in range(WIDTH):            txt += get_char(*im.getpixel((j,i)))        txt += ‘\n‘

print txt

#字符画输出到文件    #如果存在该txt文件，那么就直接生成字符画 ，否则就会创建一个文件并且生成    if OUTPUT:        with open(OUTPUT,‘w‘) as f:            f.write(txt)    else:        with open("output.txt",‘w‘) as f:            f.write(txt)

将该文件保存为 1.py 终端执行命令 Python 1.py b.png(此处是目标图片)