图片生成字符

# -*- coding: utf-8 -*-

from PIL import Image
import numpy as np


def print_photo(photo_file, width=120, k=1.0, reverse=False, outfile=None):
    """打印照片，默认120个字符宽度"""

    im = Image.open(photo_file).convert(‘L‘)  # 打开图片文件，转为灰度格式
    height = int(k * width * im.size[1] / im.size[0])  # 打印图像高度，k为矫正系数，用于矫正不同终端环境像素宽高比
    arr = np.array(im.resize((width, height)))  # 转为NumPy数组
    if reverse:  # 反色处理
        arr = 255 - arr

    chs = np.array([‘ ‘, ‘.‘, ‘-‘, ‘+‘, ‘=‘, ‘*‘, ‘#‘, ‘@‘])  # 灰度-字符映射表
    arr = chs[(arr / 32).astype(np.uint8)]  # 灰度转为对应字符

    if outfile:
        with open(outfile, ‘w‘) as fp:
            for row in arr.tolist():
                fp.write(‘‘.join(row))
                fp.write(‘\n‘)
    else:
        for i in range(arr.shape[0]):  # 逐像素打印
            for j in range(arr.shape[1]):
                print(arr[i, j], end=‘ ‘)
            print()


if __name__ == ‘__main__‘:
    print_photo(‘普天同庆.jpg‘, width=120, k=1.0, outfile=‘xufive.txt‘)