python Opencv将图片转为字符画

做了个Python的小练习,网上有人是利用PIL中的Image来实现的,觉得Opencv库挺方便的,于是利用Opencv库来实现了一下,代码如下:

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

# feimengjuan

# 实现将图片转为字符画

import cv2

ascii_char = list("$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`'. ")

# 将灰度值转为字符

def get_char(gray_number):

length = len(ascii_char)

unit = (256.0 + 1)/length

return ascii_char[int(gray_number/unit)]

if __name__ == '__main__':

image1 = cv2.imread('8.jpg')

image = cv2.resize(image1,(85,110))

gray = cv2.cvtColor(image,cv2.COLOR_BGR2GRAY)

txt = ""

for i in range(image.shape[0]):

for j in range(image.shape[1]):

# 对打开的图片的每个坐标的灰度值做判断,

# 用get_char()获取该颜色灰度值对应的字符,然后拼接成字符串txt

txt += get_char(gray[i,j])

txt += '\n'

print txt

#字符画输出到文件中

f = open('output.txt','w')

f.write(txt)

结果是:

原图片:

结果:

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