def test_random_affine_op_c(plot=False): """ Test RandomAffine in C transformations """ logger.info("test_random_affine_op_c") # define map operations transforms1 = [ c_vision.Decode(), c_vision.RandomAffine(degrees=0, translate=(0.5, 0.5, 0, 0)) ] transforms2 = [ c_vision.Decode() ] # First dataset data1 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False) data1 = data1.map(operations=transforms1, input_columns=["image"]) # Second dataset data2 = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False) data2 = data2.map(operations=transforms2, input_columns=["image"]) image_affine = [] image_original = [] for item1, item2 in zip(data1.create_dict_iterator(num_epochs=1, output_numpy=True), data2.create_dict_iterator(num_epochs=1, output_numpy=True)): image1 = item1["image"] image2 = item2["image"] image_affine.append(image1) image_original.append(image2) if plot: visualize_list(image_original, image_affine)
def test_random_affine_c_md5(): """ Test RandomAffine C Op with md5 comparison """ logger.info("test_random_affine_c_md5") original_seed = config_get_set_seed(1) original_num_parallel_workers = config_get_set_num_parallel_workers(1) # define map operations transforms = [ c_vision.Decode(), c_vision.RandomAffine(degrees=(-5, 15), translate=(-0.1, 0.1, -0.3, 0.3), scale=(0.9, 1.1), shear=(-10, 10, -5, 5)) ] # Generate dataset data = ds.TFRecordDataset(DATA_DIR, SCHEMA_DIR, columns_list=["image"], shuffle=False) data = data.map(operations=transforms, input_columns=["image"]) # check results with md5 comparison filename = "random_affine_01_c_result.npz" save_and_check_md5(data, filename, generate_golden=GENERATE_GOLDEN) # Restore configuration ds.config.set_seed(original_seed) ds.config.set_num_parallel_workers((original_num_parallel_workers))
def test_random_affine_exception_translation_range(): """ Test RandomAffine: translation value is not in [-1, 1], expected to raise ValueError """ logger.info("test_random_affine_exception_translation_range") try: _ = c_vision.RandomAffine(degrees=15, translate=(0.1, 1.5)) except ValueError as e: logger.info("Got an exception in DE: {}".format(str(e))) assert str(e) == "Input translate at 1 is not within the required interval of (-1.0 to 1.0)." logger.info("test_random_affine_exception_translation_range") try: _ = c_vision.RandomAffine(degrees=15, translate=(-2, 1.5)) except ValueError as e: logger.info("Got an exception in DE: {}".format(str(e))) assert str(e) == "Input translate at 0 is not within the required interval of (-1.0 to 1.0)."