from PIL import Image, ImageDraw, ImageFont  
    import os  
    def water_work(img):  
        x, y = img.size  
        textx = int(x*1.5)  
        texty = int(y*1.5)  
        blank = Image.new('RGB', (textx, texty), 'white')  
        draw = ImageDraw.Draw(blank)  
        font = ImageFont.truetype('simsun.ttc', size=50)  
        text = '王小涛_同學'  
        draw.ink = 100  
        draw.text(((textx-x/2)/2, (texty)/2), text, font=font)  
        One_blank = blank.rotate(30)  
        box = (730, 610, 1000, 800)  
        textImage = One_blank.crop(box)<img src="http://img.blog.csdn.net/20150208171613764" alt="" />  
        pastebox = (int(x/2 + 80), int(y/2))  
        blank2 = Image.new('RGB', (x, y), 'white')  
        blank2.paste(textImage, pastebox)  
        waterImage = Image.blend(img, blank2, 0.2)   #图片合并<img src="http://img.blog.csdn.net/20150208171708598" alt="" />  
        waterImage.save(image, quality=100)  
    for img in os.listdir('C:/Users/hengli/Pictures/lovewallpaper'):  
        if img.endswith('.jpg'):  
            image = os.path.join('C:/Users/hengli/Pictures/lovewallpaper/', img)  
            img = Image.open(image)  
            water_work(img)