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from numpy.testing import *
set_package_path()
import PIL.Image
import scipy.misc.pilutil as pilutil
restore_path()
import glob
import os.path
import numpy as N
datapath = os.path.join(os.path.dirname(__file__),'data')
class test_pilutil(NumpyTestCase):
def test_imresize(self):
im = N.random.random((10,20))
for T in N.sctypes['float'] + [float]:
im1 = pilutil.imresize(im,T(1.1))
assert_equal(im1.shape,(11,22))
def test_bytescale(self):
x = N.array([0,1,2],N.uint8)
y = N.array([0,1,2])
assert_equal(pilutil.bytescale(x),x)
assert_equal(pilutil.bytescale(y),[0,127,255])
def test_fromimage(self):
data = {'icon.png':(0,255),
'icon_mono.png':(0,2),
'icon_mono_flat.png':(0,1)}
for fn,irange in data.iteritems():
img = pilutil.fromimage(PIL.Image.open(os.path.join(datapath,fn)))
imin,imax = irange
assert img.min() >= imin
assert img.max() <= imax
if __name__ == "__main__":
NumpyTest().run()
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