我们之前学过词云能将数据变成图片展示出来,那么今天我们就来看个不同的,将图片变成字符输出。
看个效果图:
文字输出:
那么下面我们来看看代码吧!
import argparse
from PIL import Image
# 命令行输入参数处理
parser = argparse.ArgumentParser()
# 输入图片
parser.add_argument('file',
help='the input file')
# 输出文件
parser.add_argument('-o', '--output',
help='the output text file')
# 输出字符画宽度
parser.add_argument('-w', '--width',
type=int, default=40,
help='the width of the output, default is 40')
# 输出字符画高度
parser.add_argument('--height',
type=int, default=40,
help='the height of the output, default is 40')
# 获取参数
args = parser.parse_args()
IMG = args.file
WIDTH = args.width
HEIGHT = args.height
OUTPUT = args.output
str = "$@B%8&WM#*oahkbdpqw" \
"mZO0QLCJUYXzcvunxrjft/\|()" \
"1{}[]?-_+~<>i!lI;:,\"^`'. "
ascii_char = list(str)
# 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)
# 每个字符对应的 gray 值区间宽度
unit = (256.0+1)/length
# gray值对应到 char_string 中的位置(索引值)
index = int(gray/unit)
return ascii_char[index]
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)
if OUTPUT:
with open(OUTPUT, 'w') as f:
f.write(txt)
else:
with open('output.txt', 'w') as f:
f.write(txt)
“扫一扫有惊喜”