Skära upp Eins bild i bitar

cutup.py

import Image

block = 7

img = Image.open('cutup.png')
w, h = img.size
print 'Image (w,h)=(%d,%d)' % (w,h)
ws, hs = w/float(block), h/float(block)
print 'Sub image (w,h)=(%d,%d)' % (ws, hs)

for i in range(0, block):
    for j in range(0, block):
        filename = 'try3/cut_%d_%d.png' % (i, j)
	left = i * ws
	upper = j * hs
        right = left + ws - 1
        lower = upper + hs - 1
        print 'Saving subimage %s (x1,y1,x2,y2)=(%d,%d,%d,%d).' % (filename, left, upper, right, lower)
        bbox = tuple(map(int, (left, upper, right, lower)))
        img.crop( bbox ).save(filename)