Python练手项目0010

本项目采用的是https://github.com/Yixiaohan/show-me-the-code中所提供的练习项目，所有代码均为原创，转载请注明，谢谢。

问题描述：使用 Python 生成类似于下图中的字母验证码图片

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

"""

Created on Wed Jan 11 12:48:02 2017

@author: sky

"""

from PIL import Image, ImageDraw, ImageFont, ImageFilter

import random

import string

IMAGE_MODE = 'RGB'

IMAGE_BG_COLOR = (255,255,255)

Image_Font = 'arial.ttf'

chars = string.letters + string.digits

text = ''.join(random.sample(chars,10))

def colorRandom():

    return (random.randint(32,127),random.randint(32,127),random.randint(32,127))

#change 噪点频率（%）

def create_identifying_code(strs, width=1080, height=800, chance=2):

    im = Image.new(IMAGE_MODE, (width, height), IMAGE_BG_COLOR)

    draw = ImageDraw.Draw(im)

    #绘制背景噪点

    for w in xrange(width):

        for h in xrange(height):

            if chance < random.randint(1, 100):

                draw.point((w, h), fill=colorRandom())

    font = ImageFont.truetype(Image_Font, 100)

    font_width, font_height = font.getsize(strs)

    strs_len = len(strs)

    x = (width - font_width)/2

    y = (height - font_height)/2

    #逐个绘制文字

    for i in strs:

        draw.text((x,y), i, colorRandom(), font)

        x += font_width/strs_len

    #模糊

    im = im.filter(ImageFilter.BLUR)

    im.save('identifying_code_pic.jpg') 

if __name__ == '__main__':

    create_identifying_code(text)

详细代码和结果，可以参考https://github.com/g8015108/exercise-for-python