使用PIL将图片转成字符

注意：转化成txt后，txt的字体使用“宋体”，不能使用“微软雅黑”，否则图像会变形

import numpy as np
from PIL import Image

if __name__ == '__main__':
    image_file = 'huarun3.png'
    height = 100

    img = Image.open(image_file)
    img_width, image_height = img.size
    print('img_width:', img_width)
    print('image_height:', image_height)
    width = int(height / image_height * img_width * 2)
    img = img.resize((width, height), Image.ANTIALIAS)
    print(img)

    img_l = img.convert('L')
    pixels = np.array(img_l)
    print(img_l)

    chars = 'MNHQ$OC?7>!:-;. '
    step = 256 // len(chars)
    result = ''
    for i in range(height):
        for j in range(width):
            result += chars[pixels[i][j] // step]
        result += '\n'

    with open(image_file + '.txt', mode='w') as f:
        f.write(result)