python 生成图片验证码码（未模糊化）

代码：
import random,string
from PIL import Image,ImageDraw,ImageFont
#生成随机字母
lists=list(string.ascii_letters)
keys=random.sample(lists,4)
#生成随机颜色
def randomcolor():
    colorArr = ['1','2','3','4','5','6','7','8','9','A','B','C','D','E','F']
    color = ""
    for i in range(6):
        color += colorArr[random.randint(0,14)]
    return "#"+color
#生成图片
def newimage():
    img=Image.open('timg.jpg')
    #加载TrueType或OpenType字体文件，并创建一个字体对象。
    newi=img.resize((240,60))
    #newi.show()
    draw = ImageDraw.Draw(newi)
    font1 = ImageFont.truetype(r'C:\Windows\Fonts\ahronbd.ttf',36)
    fillcolor = "#ff0000"
    width, height = newi.size
    draw.text((width/2-60,height/2-20),keys[0], font=font1, fill=randomcolor())
    draw.text((width/2-30,height/2-20),keys[1], font=font1, fill=randomcolor())
    draw.text((width/2,height/2-20),keys[2], font=font1, fill=randomcolor())
    draw.text((width/2+30,height/2-20),keys[3], font=font1, fill=randomcolor())
    newi.save('result.jpg','jpeg')
    newi.show()

newimage()

运行截图：