img_compressor.py

import os
from PIL import Image
print "Enter the folder in which the image files are present: "
folder_name = raw_imput
n = 1
a  = os.listdir(folder_name)
for i in a:
    if i != 'compress.py':
        img = Image.open(i)
        x = img.size[0]
        y = img.size[1]

        compress = img.resize((x,y),Image.BILINEAR)
        compress.save(str(n) + '.jpg')
        n+=1