hi2.py

import string 
import random 
import numpy, pylab
from PIL import Image, ImageDraw, ImageFont
#import matplotlib.axes3d as axes3d
from mpl_toolkits.mplot3d import Axes3D

def id_generator(size=4, chars=string.ascii_uppercase + string.digits):
    captcha_val = ''.join(random.choice(chars) for _ in range(size))
    return captcha_val
	
def threed_gen():

    captcha = id_generator()

    sz = (70,30)

    img = Image.new('L', sz, 255)
    drw = ImageDraw.Draw(img)
    font = ImageFont.truetype("arial.ttf", 20)

    drw.text((5,5), captcha, font=font)
    img.save('test.png')

    X , Y = numpy.meshgrid(range(sz[0]),range(sz[1]))
    Z = 1-numpy.asarray(img)/255

    fig = pylab.figure()
    ax = Axes3D(fig)
    ax.plot_wireframe(X, -Y, Z, rstride=1, cstride=1)
    ax.set_zlim((0,50))
    fig.savefig('test2.png')
	
def main():
    print 'Generating Captcha.'
    threed_gen()
    print 'Captcha generated successfully.'
	
if __name__ == "__main__":
    main()
   

'''
import string
import random

def id_generator(size=4, chars=string.ascii_uppercase + string.digits):
    print ''.join(random.choice(chars) for _ in range(size))
	
#if __name__ == "__main__":
#    main()
id_generator()
'''