def test_apply_different_width_height_keeping_aspect_ratio(self):
"""
AbsoluteSizeNormalizer is able to apply to an image keeping the aspect ratio if the width and height are
different.
:return:
"""
sample_image_to_test = Image(uri=self.image_sample_uri)
sample_image_to_test.load_from_uri()
sizes = [(400, 100), (100, 400)]
for size in sizes:
normalizer = AbsoluteSizeNormalizer(size[0],
size[1],
keep_aspect_ratio=True)
image_result = normalizer.apply(sample_image_to_test)
self.assertNotEqual(image_result, sample_image_to_test)
self.assertNotEqual(image_result.get_blob(),
sample_image_to_test.get_blob())
new_size = image_result.get_size()
index, value = min(enumerate(size), key=lambda v: v[1])
self.assertEqual(size[index], new_size[index])
self.assertLess(new_size[index - 1], size[index - 1])
def test_apply_different_width_height_forcefully(self):
"""
AbsoluteSizeNormalizer is able to apply to an image forcefully a different width and height.
:return:
"""
sample_image_to_test = Image(uri=self.image_sample_uri)
sample_image_to_test.load_from_uri()
sizes = [(400, 100), (500, 500), (100, 400)]
for size in sizes:
normalizer = AbsoluteSizeNormalizer(size[0],
size[1],
keep_aspect_ratio=False)
image_result = normalizer.apply(sample_image_to_test)
self.assertNotEqual(image_result, sample_image_to_test)
self.assertNotEqual(image_result.get_blob(),
sample_image_to_test.get_blob())
new_size = image_result.get_size()
self.assertEqual(size, new_size)
def test_apply_equal_width_height_keeping_aspect_ratio(self):
"""
AbsoluteSizeNormalizer is able to apply to an image keeping the aspect ratio if the width and height are equal.
:return:
"""
size = (500, 500)
sample_image_to_test = Image(uri=self.image_sample_uri)
sample_image_to_test.load_from_uri()
normalizer = AbsoluteSizeNormalizer(size[0],
size[1],
keep_aspect_ratio=True)
image_result = normalizer.apply(sample_image_to_test)
self.assertNotEqual(image_result, sample_image_to_test)
self.assertNotEqual(image_result.get_blob(),
sample_image_to_test.get_blob())
original_size = sample_image_to_test.get_size()
new_size = image_result.get_size()
index, value = max(enumerate(original_size), key=lambda v: v[1])
self.assertEqual(size[index], new_size[index])
self.assertLess(new_size[index - 1], size[index - 1])