def test_write_lzw():
for itype in [
uint8, uint16, uint32, uint64, int8, int16, int32, int64, float32,
float64, complex64, complex128
]:
#image = array([[1,2,3], [4,5,6]], itype)
image = array([range(10000)], itype)
#image = array([[0]*14000], itype)
fn = mktemp('.tif')
tif = TIFFimage(image)
tif.write_file(fn, compression='lzw')
del tif
#os.system('wc %s; echo %s' % (fn, image.nbytes))
tif = TIFF.open(fn, 'r')
image2 = tif.read_image()
tif.close()
#os.remove(fn)
atexit.register(os.remove, fn)
for i in range(image.size):
if image.flat[i] != image2.flat[i]:
print ` i, image.flat[i - 5:i + 5].view(
dtype=uint8), image2.flat[i - 5:i + 5].view(dtype=uint8) `
break
assert image.dtype == image2.dtype
assert (image == image2).all()
def test_write_lzw():
for itype in [uint8, uint16, uint32, uint64,
int8, int16, int32, int64,
float32, float64,
complex64, complex128]:
#image = array([[1,2,3], [4,5,6]], itype)
image = array([range(10000)], itype)
#image = array([[0]*14000], itype)
fn = mktemp('.tif')
tif = TIFFimage(image)
tif.write_file(fn, compression='lzw')
del tif
#os.system('wc %s; echo %s' % (fn, image.nbytes))
tif = TIFF.open(fn,'r')
image2 = tif.read_image()
tif.close()
#os.remove(fn)
atexit.register(os.remove, fn)
for i in range(image.size):
if image.flat[i] != image2.flat[i]:
print `i, image.flat[i-5:i+5].view(dtype=uint8),image2.flat[i-5:i+5].view(dtype=uint8)`
break
assert image.dtype==image2.dtype
assert (image==image2).all()
