Python Imaging Library Handbook

http://effbot.org/imagingbook/pil-index.htm

随机验证码的产生

 1 import Image, ImageDraw, ImageFont, ImageFilter
 2 import random
 3
 4 # 随机字母:
 5 def rndChar():
 6     return chr(random.randint(65, 90))
 7
 8 # 随机颜色1:
 9 def rndColor():
10     return (random.randint(64, 255), random.randint(64, 255), random.randint(64, 255))
11
12 # 随机颜色2:
13 def rndColor2():
14     return (random.randint(32, 127), random.randint(32, 127), random.randint(32, 127))
15
16 # 240 x 60:
17 width = 60 * 4
18 height = 60
19 image = Image.new(‘RGB‘, (width, height), (255, 255, 255))
20 # 创建Font对象:
21 font = ImageFont.truetype(‘Arial.ttf‘, 36)
22 # 创建Draw对象:
23 draw = ImageDraw.Draw(image)
24 # 填充每个像素:
25 for x in range(width):
26     for y in range(height):
27         draw.point((x, y), fill=rndColor())
28 # 输出文字:
29 for t in range(4):
30     draw.text((60 * t + 10, 10), rndChar(), font=font, fill=rndColor2())
31 # 模糊:
32 image = image.filter(ImageFilter.BLUR)
33 image.save(‘code.jpg‘, ‘jpeg‘);