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import sys
athresh = 100
border = 20
segf = sys.argv[1]
if len(sys.argv) > 2:
pref = sys.argv[2]
else:
pref = '/tmp/cut'
rects = []
starts = {}
for l in file(segf).xreadlines():
ls = l.split()
if len(ls) == 6 and ls[-1] == 'rect':
r = map(int, ls[:4])
area = (r[2] - r[0]) * (r[3] - r[1])
if area > athresh:
rpad = [r[0] - border, r[1] - border, r[2] + border, r[3] + border]
if not starts.has_key(rpad[1]):
starts[rpad[1]] = []
starts[rpad[1]].append(len(rects))
rects.append(rpad)
inf = sys.stdin
l = inf.readline()
if l != 'P5\n':
raise 'expected pgm file'
while 1:
l = inf.readline()
if l[0] != '#': break
x, y = map(int, l.split())
l = inf.readline()
active = {}
for j in range(y):
if starts.has_key(j):
for ix in starts[j]:
r = rects[ix]
ofn = pref + '%04d.pgm' % ix
of = file(ofn, 'w')
active[ix] = of
print >> of, 'P5'
print >> of, r[2] - r[0], r[3] - r[1]
print >> of, '255'
buf = inf.read(x)
for ix, of in active.items():
r = rects[ix]
of.write(buf[r[0]:r[2]])
if j == r[3] - 1:
of.close()
del active[ix]
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