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import os
from tempfile import mktemp
from numpy import (uint8, uint16, uint32, uint64, int8, int16, int32,
int64, float32, float64, complex64, complex128,
array, random)
from libtiff import TIFF
def test_write_read():
for itype in [uint8, uint16, uint32, uint64,
int8, int16, int32, int64,
float32, float64,
complex64, complex128]:
image = array([[1, 2, 3], [4, 5, 6]], itype)
fn = mktemp('.tif')
tif = TIFF.open(fn, 'w')
tif.write_image(image)
tif.close()
tif = TIFF.open(fn, 'r')
image2 = tif.read_image()
tif.close()
os.remove(fn)
assert image.dtype == image2.dtype
assert (image == image2).all()
def test_slicing():
shape = (16, 16)
image = random.randint(255, size=shape)
for i in range(shape[0]):
for j in range(shape[1]):
image1 = image[:i + 1, :j + 1]
fn = mktemp('.tif')
tif = TIFF.open(fn, 'w')
tif.write_image(image1)
tif.close()
tif = TIFF.open(fn, 'r')
image2 = tif.read_image()
tif.close()
assert (image1 == image2).all(), repr((i, j))
os.remove(fn)
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