def test_encode_uint16(self):
data, meta = data_io.read(self.fname16)
data_comp = jls.encode(data)
msg = 'oops size={:d}'.format(data_comp.size)
self.assertTrue(data_comp.size < 2740000, msg)
def test_encode_band_resid(self):
data, meta = data_io.read(self.fname_resid)
data = data.squeeze()
data_comp = jls.encode(data)
msg = 'oops size={:d}'.format(data_comp.size)
self.assertTrue(data_comp.size < 24000, msg)
def test_encode_to_file(self):
data, meta = data_io.read(self.fname)
fname_temp = os.path.join(self.path_module, 'data_temp.jls')
jls.write(fname_temp, data)
file_size = os.path.getsize(fname_temp)
msg = 'oops file_size={:d}'.format(file_size)
self.assertTrue(file_size < 2090000, msg)
def test_encode_decode_compare_uint8(self):
data, meta = data_io.read(self.fname)
# Compress, decompress.
data_comp = jls.encode(data)
data_image = jls.decode(data_comp)
diff = np.sum( (data.squeeze().astype(np.int) - data_image.astype(np.int))**2)
self.assertTrue(diff == 0)
def test_read_header(self):
data, meta = data_io.read(self.fname)
data_comp = jls.encode(data)
header = jls.CharLS._CharLS.read_header(data_comp)
self.assertTrue(header['width'] == 2592)
self.assertTrue(header['height'] == 1944)
self.assertTrue(header['bitspersample'] == 8)
self.assertTrue(header['bytesperline'] == 2592)
self.assertTrue(header['components'] == 1)
self.assertTrue(header['allowedlossyerror'] == 0)
self.assertTrue(header['ilv'] == 0)