python之使用PIL模块制作随机验证码
制作随机验证码,需要如下知识点:
1、随机验证码的制作(这里用的是random模块随机产生字符)
2、图片的制作
3、随机直线干扰项
4、其他随机干扰项
代码如下:
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
import random
#随机颜色
def get_random_color():
r = random.randint(0,255)
g = random.randint(0,255)
b = random.randint(0,255)
return (r,g,b)
#随机位置
def get_random_position(x,y):
x = random.randint(0,x - 50)
y = random.randint(0,y - 15)
return (x,y)
#线条随机俩个坐标
def get_random_line_position(x,y):
x1 = random.randint(0,x)
y1 = random.randint(0,y)
x2 = random.randint(0,x)
y2 = random.randint(0,y)
return (x1,y1,x2,y2) def get_random_eci_position(x,y):
x1 = random.randint(0,x)
y1 = random.randint(0,y)
x2 = x1 + 4
y2 = y1 + 4
return (x1,y1,x2,y2)
#随机字符
def get_random_str():
num = str(random.randint(0,9))
low_letter = chr(random.randint(97,122))
upper_letter = chr(random.randint(65,90))
#print(num,low_letter,upper_letter)
randomStr = random.choice([num,low_letter,upper_letter])
return randomStr x = 200
y = 60
#创建一个随机颜色的图形
img = Image.new('RGB',(x,y),get_random_color()) #在图形上随机位置显示4个随机颜色的文字
draw = ImageDraw.Draw(img)
font = ImageFont.truetype('segoeuib.ttf',20)
randomStr = ''
for i in range(4):
v = get_random_str()
randomStr += v
#print(randomStr)
draw.text(get_random_position(x,y),randomStr,get_random_color(),font = font) #在图形上随机位置显示随机颜色的直线
for i in range(8):
draw.line(get_random_line_position(x,y),get_random_color())
draw.ellipse(get_random_eci_position(x,y),get_random_color())
draw.arc(get_random_line_position(x,y),0,90,get_random_color()) img.show()
执行效果如下:
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