nextep: Create data directory only if necessary.

[utils.git] / icom-gen

#!/usr/bin/python

import sys
import Image

if len(sys.argv) < 3:
    sys.stderr.write("usage: icom-gen INFILE OUTFILE\n")
    sys.exit(1)

inf = Image.open(sys.argv[1])
sz = inf.size
tsz = (25, 25)
out = []

for y in xrange(tsz[1]):
    line = []
    for x in xrange(tsz[0]):
        sum = [0, 0, 0]
        n = 0
        for y2 in xrange(y * sz[1] / tsz[1], (y + 1) * sz[1] / tsz[1]):
            for x2 in xrange(x * sz[0] / tsz[0], (x + 1) * sz[0] / tsz[0]):
                p = inf.getpixel((x2, y2))
                for c in xrange(3):
                    sum[c] += p[c]
                n += 1
        for c in xrange(3):
            sum[c] /= n
        line.append(tuple(sum))
    out.append(line)

f = open(sys.argv[2], "w")
for line in out:
    for p in line:
        for c in p:
            f.write(chr(c))
f.close()