Python image to character drawing

PIL installation is very troublesome, it is recommended to download exe and install it directly

PIL official website: http://pythonware.com/products/pil/

But now the download link can't be accessed, I uploaded the 32-bit and 64-bit versions to the blog garden for download

PILwin32：http://files.cnblogs.com/files/pcat/PILwin32.zip

PILwin64：http://files.cnblogs.com/files/pcat/PILwin64.zip

#coding=utf-8
from PIL.Image import Image
import argparse

#Command line input parameter processing 
parser= argparse.ArgumentParser()

parser.add_argument( ' file ' )   #input file 
parser.add_argument( ' -o ' , ' --output ' )
parser.add_argument('--width',type=int,default=80)
parser.add_argument('--heigth',type=int,default=80)

args=parser.parse_args()

IMG=args.file
WIDTH=args.width
HEIGHT=args.heigth
OUTPUT=args.output

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

#map 256 grayscale to 70 characters

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)]



    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)))
            
    print txt
    
    #Character drawing output file 
    if OUTPUT:
        with open(OUTPUT,'w') as f:
            f.write(txt)
    else:
        with open("output.txt",'w') as f:
            f.write(txt)       

链接：https://www.shiyanlou.com/courses/370/labs/1191/document