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Abbey

已经兼容python2.7和python3
运行之后可以输入：图片链接或者本地图片绝对路径
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# -*- coding=utf-8 -*-

from PIL import Image

import sys

import requests

py3=False

if sys.version_info[0]==2:

    import StringIO

else:

    py3=True

    import io as StringIO

ASCII_CHARS = "$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft|()1{}[]?-_+~i!lI;:,^  "

max_width=100  #调节此项可调节图片大小，越大图片信息越好。

range_width=float(255)/(len(ASCII_CHARS)-1)

def scale_image(image, new_width=max_width):

    """Resizes an image preserving the aspect ratio.

    """

    (original_width, original_height) = image.size

    aspect_ratio = original_height/float(original_width)*0.5

    new_height = int(aspect_ratio * new_width)

    new_image = image.resize((new_width, new_height))

    return new_image

def convert_to_grayscale(image):

    return image.convert('L')

def map_pixels_to_ascii_chars(image, range_width=range_width):

    """Maps each pixel to an ascii char based on the range

    in which it lies.

    0-255 is divided into 11 ranges of 25 pixels each.

    """

    pixels_in_image = list(image.getdata())

    pixels_to_chars = [ASCII_CHARS[int(pixel_value/range_width)] for pixel_value in pixels_in_image]

    return "".join(pixels_to_chars)

def convert_image_to_ascii(image, new_width=max_width):

    image = scale_image(image)

    image = convert_to_grayscale(image)

    pixels_to_chars = map_pixels_to_ascii_chars(image)

    len_pixels_to_chars = len(pixels_to_chars)

    image_ascii = [pixels_to_chars[index: index + new_width] for index in range(0, len_pixels_to_chars, new_width)]

    f=open('image_ascii.txt','w')

    for line in image_ascii:

        f.write('%s\n'%line)

    return "\n".join(image_ascii)

def handle_image_conversion(image_filepath):

    image = None

    session=requests.Session()

    session.headers={'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36'}

    if image_filepath.startswith('http://') or image_filepath.startswith('https://'):

        resp=session.get(image_filepath)

        if py3:

            imagebuf=StringIO.BytesIO(resp.content)

        else:

            imagebuf=StringIO.StringIO(resp.content)

        image=Image.open(imagebuf)

    else:

        image = Image.open(image_filepath)

    image_ascii = convert_image_to_ascii(image)

    print(image_ascii)

if __name__=='__main__':

    while 1:

        print(u"请输入图片地址：")

        try:

            image_file_path = sys.argv[1]

        except:

            if py3:

                image_file_path=input()

            else:

                image_file_path=raw_input()

        handle_image_conversion(image_file_path)

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