python生成中文验证码,带旋转,带干扰噪音线段

# -*- coding: utf-8 -*-
"""
Created on Sun Oct 4 15:57:46 2015 @author: keithguofan
""" import random
from PIL import Image,ImageDraw,ImageFont
import math,string
class RandomChar():
@staticmethod
def Unicode():
val = random.randint(0x4E00,0x9FBF)
return unichr(val)
@staticmethod
def GB2312():
head=random.randint(0xB0,0xCF)
body=random.randint(0xA,0xF)
tail=random.randint(0,0xF)
val = (head <<8)|(body<<4)|tail
str="%x" % val
# return str.decode('hex').decode('gb2312')
# return str.encode('gb2312').decode('gb2312')
return codecs.decode(str,'hex_codec').decode('gb2312') class ImageChar():
def __init__(self,fontColor=(0,0,0),
size=(100,40),
# fontPath='C:/Windows/Fonts/wqy.ttc',
fontPath='C:/Windows/Fonts/simsun.ttc',
bgColor=(255,255,255),
fontSize=20):
self.size=size
self.fontPath=fontPath
self.bgColor=bgColor
self.fontSize=fontSize
self.fontColor=fontColor
self.font=ImageFont.truetype(self.fontPath,self.fontSize)
self.image=Image.new('RGB',size,bgColor) def rotate(self):
self.image.rotate(random.randint(0,30),expand=0)
def drawText(self,pos,txt,fill):
draw=ImageDraw.Draw(self.image)
# print(pos)
# print(txt)
#print(self.font)
#print(fill)
draw.text(pos,txt,font=self.font,fill=fill)
del draw def randRGB(self):
return (random.randint(0,255),
random.randint(0,255),
random.randint(0,255)) def randPoint(self):
(width,height)=self.size
return (random.randint(0,width),random.randint(0,height))
def randLine(self,num):
draw=ImageDraw.Draw(self.image)
for i in range(0,num):
draw.line([self.randPoint(),self.randPoint()],self.randRGB())
del draw
def randChinese(self,num):
gap=5
start=0
for i in range(0,num):
char =RandomChar().GB2312()
x=start + self.fontSize * i +random.randint(0,gap)+gap*i
self.drawText((x,random.randint(-5,5)),RandomChar().GB2312(),self.randRGB())
self.rotate()
self.randLine(18) def save(self,path):
self.image.save(path) if __name__ == '__main__':
ic=ImageChar(fontColor=(100,211,90))
ic.randChinese(4)
ic.save("5.jpeg")

最近在研究验证码识别,中文的验证码不太好识别,上面的代码我参考了一些博客,亲测通过。我的python环境是python3.4

生成的图片大概是这个样子:

python生成中文验证码,带旋转,带干扰噪音线段

代码很简单。

核心思想是:

生成随机十六进制数字,然后将其转换为汉字,通过ImageDraw的方法将其打印到图片中,对字做一些随机旋转,然后随机加入随机颜色的线段。

如有不懂的可以联系我哦。

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