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  • 生成随机图形验证码

    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    from PIL import Image, ImageDraw, ImageFont, ImageFilter
    import random
    from io import BytesIO
    
    def check_code(width=120, height=30, char_length=5, font_file='/Users/anthony/Desktop/djangopro/s25/Monaco.ttf', font_size=28):
        code = []
        img = Image.new(mode='RGB', size=(width, height), color=(255, 255, 255))
        draw = ImageDraw.Draw(img, mode='RGB')
    
        def rndChar():
            """
            生成随机字母
            :return:
            """
            return chr(random.randint(65, 90))
    
        def rndColor():
            """
            生成随机颜色
            :return:
            """
            return (random.randint(0, 255), random.randint(10, 255), random.randint(64, 255))
    
        # 写文字
        font = ImageFont.truetype(font_file, font_size)
        for i in range(char_length):
            char = rndChar()
            code.append(char)
            h = random.randint(0, 4)
            draw.text([i * width / char_length, h], char, font=font, fill=rndColor())
    
        # 写干扰点
        for i in range(40):
            draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
    
        # 写干扰圆圈
        for i in range(40):
            draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
            x = random.randint(0, width)
            y = random.randint(0, height)
            draw.arc((x, y, x + 4, y + 4), 0, 90, fill=rndColor())
    
        # 画干扰线
        for i in range(5):
            x1 = random.randint(0, width)
            y1 = random.randint(0, height)
            x2 = random.randint(0, width)
            y2 = random.randint(0, height)
    
            draw.line((x1, y1, x2, y2), fill=rndColor())
    
        img = img.filter(ImageFilter.EDGE_ENHANCE_MORE)
        return img, ''.join(code)
    
    
    if __name__ == '__main__':
        image_object, code = check_code()
    
        # stream = BytesIO()
        # image_object.save(stream, 'png')
    
        # 把图片写入文件
        """
        with open('code.png', 'wb') as f:
            image_object.save(f, format='png')
        """
    
        # 把图片的内容写到内存 stream
        """
        from io import BytesIO
        stream = BytesIO()
        image_object.save(stream, 'png')
        stream.getvalue()
        """
    
    

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  • 原文地址:https://www.cnblogs.com/ipyanthony/p/13940512.html
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