使用python将图片转化为字符画

Created at 2016-07-20 Updated at 2016-07-20 Category Fun Tag python / PIL

忽然想玩这个图片转化的把戏,是因为之前在知乎上看到一个专栏里用到了下面这个图:
拿衣服
当然,那篇专栏没过几小时就被和谐了。我在网上貌似搜到了这个图片转emoji mosaic的网址,供大家戏耍:Emoji Mosaic

做这个转emoji马赛克应该蛮复杂的,当然它的源码也很容易找到:ericandrewlewis/emoji-mosaic。但我纯属娱乐又不想花功夫,于是就在晚上学了学把图片转为字符图的代码玩玩。

代码很简单:

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#-*- coding: utf-8 -*-
from PIL import Image

grey2char = ['@','#','$','%','&','?','*','o','/','{','[','(','|','!','^','~','-','_',':',';',',','.','`',' ']
count = len(grey2char)

def toText(image_file):
image_file = image_file.convert('L')# 转灰度
result = ''# 储存字符串
for h in range(0, image_file.size[1]):# height
for w in range(0, image_file.size[0]):# width
gray = image_file.getpixel((w,h))
result += grey2char[int(gray/(255/(count-1)))]
result += '\r\n'
return result

image_file = Image.open("input.jpg")# 打开图片
image_file = image_file.resize((int(image_file.size[0]), int(image_file.size[1]*0.55)))# 调整图片大小

output = open('output.txt','w')
output.write(toText(image_file))
output.close()

需要注意的是要安装依赖PIL。

原图:

字符图:

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