import randomimport Imageimport ImageFontimport ImageDrawimport ImageFilterdef gen_captcha(text, fnt, fnt_sz, file_name, fmt='JPEG'): """Generate a captcha image""" # randomly select the foreground color fgcolor = random.randint(0,0xffff00) # make the background color the opposite of fgcolor bgcolor = fgcolor ^ 0xffffff # create a font object font = ImageFont.truetype(fnt,fnt_sz) # determine dimensions of the text dim = font.getsize(text) # create a new image slightly larger that the text im = Image.new('RGB', (dim[0]+5,dim[1]+5), bgcolor) d = ImageDraw.Draw(im) x, y = im.size r = random.randint # draw 155 random colored boxes on the background for num in range(155): d.rectangle((r(0,x),r(0,y),r(0,x),r(0,y)),fill=r(0,0xffffff)) # add the text to the image d.text((3,3), text, font=font, fill=fgcolor) im = im.filter(ImageFilter.EDGE_ENHANCE_MORE) # save the image to a file im.save(file_name, format=fmt)if __name__ == '__main__': """Example: This grabs a random word from the dictionary 'words' (one word per line) and generates a jpeg image named 'test.jpg' using the truetype font 'porkys.ttf' with a font size of 25. """ words = open('words').readlines() word = words[random.randint(1,len(words))] gen_captcha(word.strip(), 'porkys.ttf', 25, "test.jpg")