38 lines
753 B
Python
38 lines
753 B
Python
|
#!/usr/bin/python
|
||
|
|
|
||
|
|
import sys
|
||
|
|
|
||
|
|
# just need this for leaktesting
|
||
|
|
import gc
|
||
|
|
|
||
|
|
from vipsCC import *
|
||
|
|
|
||
|
|
if len (sys.argv) != 3:
|
||
|
|
print 'usage:', sys.argv[0], 'inputimage outputimage'
|
||
|
|
print '\tcalculate photographic negative of inputimage'
|
||
|
|
sys.exit (1)
|
||
|
|
|
||
|
|
try:
|
||
|
|
a = VImage.VImage (sys.argv[1])
|
||
|
|
b = a.invert ()
|
||
|
|
c = b.lin ([1,2,3],[4,5,6])
|
||
|
|
c.write (sys.argv[2])
|
||
|
|
except VError.VError, e:
|
||
|
|
e.perror (sys.argv[0])
|
||
|
|
|
||
|
|
# we can get properties of VImage too
|
||
|
|
print 'inputimage is', a.Xsize (), 'pixels across'
|
||
|
|
|
||
|
|
print 'starting shutdown ...'
|
||
|
|
del b
|
||
|
|
del a
|
||
|
|
del c
|
||
|
|
# sometimes have to do several GCs to get them all, not sure why
|
||
|
|
for i in range(10):
|
||
|
|
gc.collect ()
|
||
|
|
print 'shutdown!'
|
||
|
|
|
||
|
|
print 'leaked IMAGEs:'
|
||
|
|
VImage.im__print_all ()
|
||
|
|
print 'done ... hopefully you saw no leaks'
|