[Tutor] [tutor]Imagechop error

[Varsha Purohit]

Hello everyone,
        I am tryin to use the imagechop module but i am not able to
implement it successfully. I want to compare two images and give the
resultant of the image using difference module. i am tryin to save the
resultant image. But i am getting some wierd error. It gives error in the
line where i have used imagechop.difference and the error is

AttributeError: 'str' object has no attribute 'load'    I am unable to
understand what is the problem. Can any one help me understand this
imagechop module ??

import Image
import ImageChops

file1 = "Nearest.jpg"
file2 = "Bilinear.jpg"

diff = ImageChops.difference(file1, file2)

ext = ".jpg"
diff.save("diff" + ext, "JPEG", quality =100)

-- 
Varsha Purohit,
Graduate Student
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