from PIL
import Image
from PIL
import ImageDraw, ImageFont
import random
def get_valid_img(request):
def get_random_color():
return (random.randint(0, 255
),
random.randint(0, 255
),
random.randint(0, 255
))
image = Image.new(
"RGB", (250, 40
), get_random_color())
# 生成五个随机字符
draw =
ImageDraw.Draw(image)
font = ImageFont.truetype(
"static/blog/font/kumo.ttf", size=32
)
temp =
[]
for i
in range(5
):
random_num = str(random.randint(0, 9
))
random_low_alpha = chr(random.randint(97, 122))
#得到A~Z
random_upper_alpha = chr(random.randint(65, 90))
#得到a~z
random_char =
random.choice([random_num, random_low_alpha, random_upper_alpha])
draw.text((24+i*36, 0), random_char, get_random_color(), font=
font)
# 保存随机字符
temp.append(random_char)
# 噪点噪线
# width=250
# height=40
# for i in range(100):
# x1=random.randint(0,width)
# x2=random.randint(0,width)
# y1=random.randint(0,height)
# y2=random.randint(0,height)
# draw.line((x1,y1,x2,y2),fill=get_random_color())
#
# for i in range(400):
# draw.point([random.randint(0, width), random.randint(0, height)], fill=get_random_color())
# x = random.randint(0, width)
# y = random.randint(0, height)
# draw.arc((x, y, x + 4, y + 4), 0, 90, fill=get_random_color())
# 在内存生成图片
from io
import BytesIO
f =
BytesIO()
image.save(f, "png")
data =
f.getvalue()
f.close()
valid_str =
"".join(temp)
print(
"valid_str", valid_str)
# 设置session
request.session[
"valid_str"] =
valid_str
return data
转载于:https://www.cnblogs.com/Alone-Tree/p/9785804.html
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