Pythonはランダム認証コードを生成する

28428 ワード

Pythonはランダム認証コードを生成し、PILモジュールを使用する必要がある.
pip3 install pillow

1.画像を作成する
from PIL import Image
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
 
#          
# img.show() 
 
#      
with open('code.png','wb') as f:
    img.save(f,format='png')

2.画像に任意の内容を描くためのブラシを作成します.
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')

3.画点:
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')
#      :    
#      :    
draw.point([100, 100], fill="red")
draw.point([300, 300], fill=(255, 255, 255))

# 4.線:
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')
#      :           
#      :    
draw.line((100,100,100,300), fill='red')
draw.line((100,100,300,100), fill=(255, 255, 255))

# 5.円を描く:
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')
#      :           (       )
#      :      
#      :      
#      :    
draw.arc((100,100,300,300),0,90,fill="red")

# 6.テキストを書く:
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')
#      :      
#      :      
#      :    
draw.text([0,0],'python',"red")

# 7.特殊フォント文字:
img = Image.new(mode='RGB', size=(120, 30), color=(255, 255, 255))
draw = ImageDraw.Draw(img, mode='RGB')
#      :        
#      :      
font = ImageFont.truetype("kumo.ttf", 28)
#      :      
#      :      
#      :    
#      :    
draw.text([0, 0], 'python', "red", font=font)

#ピクチャ検証コード:
import random
 
def check_code(width=120, height=30, char_length=5, font_file='kumo.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():
        """
                 
        :return:
        """
        return chr(random.randint(65, 90))
 
    def rndColor():
        """
              
        :return:
        """
        return (random.randint(0, 255), random.randint(10, 255), random.randint(64, 255))
 
    #    
    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())
 
    #     
    for i in range(40):
        draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())
 
    #      
    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())
 
    #     
    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__':
    # 1.     
    # img,code = check_code()
    # img.show()
 
    # 2.     
    # img,code = check_code()
    # with open('code.png','wb') as f:
    #     img.save(f,format='png')
 
    # 3.     (Python3)
    # from io import BytesIO
    # stream = BytesIO()
    # img.save(stream, 'png')
    # stream.getvalue()
 
    # 4.     (Python2)
    # import StringIO
    # stream = StringIO.StringIO()
    # img.save(stream, 'png')
    # stream.getvalue()
 
    pass