49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
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from random import randint
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from PIL import Image, ImageDraw, ImageFont
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def get_random_color():
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# 随机颜色RGB
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return randint(120, 200), randint(120, 200), randint(120, 200)
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def get_random_code():
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# 随机字符
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codes = [[chr(i) for i in range(48, 58)], [chr(i) for i in range(65, 91)], [chr(i) for i in range(97, 123)]]
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codes = codes[randint(0, 2)]
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return codes[randint(0, len(codes)-1)]
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def generate_captcha(width=140, height=60, length=4):
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# 生成验证码
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img = Image.new("RGB", (width, height), (250, 250, 250))
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draw = ImageDraw.Draw(img)
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font = ImageFont.truetype("static/font/font.ttf", size=36)
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# 验证码文本
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text = ""
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for i in range(length):
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c = get_random_code()
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text += c
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rand_len = randint(-5, 5)
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draw.text((width * 0.2 * (i+1) + rand_len, height * 0.2 + rand_len), c, font=font, fill=get_random_color())
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# 加入干扰线
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for i in range(3):
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x1 = randint(0, width)
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y1 = randint(0, height)
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x2 = randint(0, width)
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y2 = randint(0, height)
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draw.line((x1, y1, x2, y2), fill=get_random_color())
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# 加入干扰点
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for i in range(16):
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draw.point((randint(0, width), randint(0, height)), fill=get_random_color())
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# 保存图片
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img.save("static/captcha/" + text + ".jpg")
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return text + ".jpg"
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if __name__ == "__main__":
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for i in range(1000):
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generate_captcha()
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