随机生成字符验证程序

最新推荐文章于 2024-09-09 21:25:28 发布

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本文介绍了一段使用Python和PIL库生成带有随机英文字符的验证码图片的代码。该代码通过定义函数来生成随机字符、背景颜色和文字颜色，然后在指定尺寸的白色画布上绘制噪点和字符，最后应用模糊滤镜并保存图片。

from PIL import Image,ImageDraw,ImageFilter,ImageFont
import random

def randomChar():  # return English letter
   if random.randint(0,1)==0 :
       return(chr(random.randint(65,90)))
   else:
       return chr(random.randint(97,122))
def randomBlackgroundColor():
    return (random.randint(64,255),random.randint(64,255),random.randint(64,255))
def randomWordColor():
    return (random.randint(32,127),random.randint(32,127),random.randint(32,127))

def createImage():
    im = Image.new('RGB',(240,60),(255,255,255))
    font = ImageFont.truetype('./simhei.ttf',40)
    draw = ImageDraw.Draw(im)
    for x in range(240):
        for y in range(60):
            draw.point((x,y),randomBlackgroundColor())
    words =' '
    for i in range(4):
        word = randomChar()
        draw.text((50*i+random.randint(10,40),random.randint(0,20)),word,font=font,fill=randomWordColor())
        words += word

    img = im.filter(ImageFilter.BLUR)
    im.save('result.png')
    print(words)
if __name__=='__main__':
    createImage()