def test_profile_tobytes(self): i = Image.open("Tests/images/rgb.jpg") p = ImageCms.getOpenProfile(BytesIO(i.info["icc_profile"])) p2 = ImageCms.getOpenProfile(BytesIO(p.tobytes())) # not the same bytes as the original icc_profile, # but it does roundtrip self.assertEqual(p.tobytes(), p2.tobytes()) self.assertEqual(ImageCms.getProfileName(p), ImageCms.getProfileName(p2)) self.assertEqual(ImageCms.getProfileDescription(p), ImageCms.getProfileDescription(p2))
def test_extensions(self): # extensions i = Image.open("Tests/images/rgb.jpg") p = ImageCms.getOpenProfile(BytesIO(i.info["icc_profile"])) self.assertEqual( ImageCms.getProfileName(p).strip(), 'IEC 61966-2.1 Default RGB colour space - sRGB')
def test_sanity(self): # basic smoke test. # this mostly follows the cms_test outline. v = ImageCms.versions() # should return four strings self.assertEqual(v[0], '1.0.0 pil') self.assertEqual(list(map(type, v)), [str, str, str, str]) # internal version number self.assertRegex(ImageCms.core.littlecms_version, r"\d+\.\d+$") self.skip_missing() i = ImageCms.profileToProfile(hopper(), SRGB, SRGB) self.assert_image(i, "RGB", (128, 128)) i = hopper() ImageCms.profileToProfile(i, SRGB, SRGB, inPlace=True) self.assert_image(i, "RGB", (128, 128)) t = ImageCms.buildTransform(SRGB, SRGB, "RGB", "RGB") i = ImageCms.applyTransform(hopper(), t) self.assert_image(i, "RGB", (128, 128)) i = hopper() t = ImageCms.buildTransform(SRGB, SRGB, "RGB", "RGB") ImageCms.applyTransform(hopper(), t, inPlace=True) self.assert_image(i, "RGB", (128, 128)) p = ImageCms.createProfile("sRGB") o = ImageCms.getOpenProfile(SRGB) t = ImageCms.buildTransformFromOpenProfiles(p, o, "RGB", "RGB") i = ImageCms.applyTransform(hopper(), t) self.assert_image(i, "RGB", (128, 128)) t = ImageCms.buildProofTransform(SRGB, SRGB, SRGB, "RGB", "RGB") self.assertEqual(t.inputMode, "RGB") self.assertEqual(t.outputMode, "RGB") i = ImageCms.applyTransform(hopper(), t) self.assert_image(i, "RGB", (128, 128)) # test PointTransform convenience API hopper().point(t)
def test_extended_information(self): self.skip_missing() o = ImageCms.getOpenProfile(SRGB) p = o.profile def assert_truncated_tuple_equal(tup1, tup2, digits=10): # Helper function to reduce precision of tuples of floats # recursively and then check equality. power = 10**digits def truncate_tuple(tuple_or_float): return tuple( truncate_tuple(val) if isinstance(val, tuple ) else int(val * power) / power for val in tuple_or_float) self.assertEqual(truncate_tuple(tup1), truncate_tuple(tup2)) self.assertEqual(p.attributes, 4294967296) assert_truncated_tuple_equal( p.blue_colorant, ((0.14306640625, 0.06060791015625, 0.7140960693359375), (0.1558847490315394, 0.06603820639433387, 0.06060791015625))) assert_truncated_tuple_equal( p.blue_primary, ((0.14306641366715667, 0.06060790921083026, 0.7140960805782015), (0.15588475410450106, 0.06603820408959558, 0.06060790921083026))) assert_truncated_tuple_equal( p.chromatic_adaptation, (((1.04791259765625, 0.0229339599609375, -0.050201416015625), (0.02960205078125, 0.9904632568359375, -0.0170745849609375), (-0.009246826171875, 0.0150604248046875, 0.7517852783203125)), ((1.0267159024652783, 0.022470062342089134, 0.0229339599609375), (0.02951378324103937, 0.9875098886387147, 0.9904632568359375), (-0.012205438066465256, 0.01987915407854985, 0.0150604248046875)))) self.assertIsNone(p.chromaticity) self.assertEqual( p.clut, { 0: (False, False, True), 1: (False, False, True), 2: (False, False, True), 3: (False, False, True) }) self.assertEqual(p.color_space, 'RGB') self.assertIsNone(p.colorant_table) self.assertIsNone(p.colorant_table_out) self.assertIsNone(p.colorimetric_intent) self.assertEqual(p.connection_space, 'XYZ ') self.assertEqual(p.copyright, 'Copyright International Color Consortium, 2009') self.assertEqual(p.creation_date, datetime.datetime(2009, 2, 27, 21, 36, 31)) self.assertEqual(p.device_class, 'mntr') assert_truncated_tuple_equal( p.green_colorant, ((0.3851470947265625, 0.7168731689453125, 0.097076416015625), (0.32119769927720654, 0.5978443449048152, 0.7168731689453125))) assert_truncated_tuple_equal( p.green_primary, ((0.3851470888162112, 0.7168731974161346, 0.09707641738998518), (0.32119768793686687, 0.5978443567149709, 0.7168731974161346))) self.assertEqual(p.header_flags, 0) self.assertEqual(p.header_manufacturer, '\x00\x00\x00\x00') self.assertEqual(p.header_model, '\x00\x00\x00\x00') self.assertEqual( p.icc_measurement_condition, { 'backing': (0.0, 0.0, 0.0), 'flare': 0.0, 'geo': 'unknown', 'observer': 1, 'illuminant_type': 'D65' }) self.assertEqual(p.icc_version, 33554432) self.assertIsNone(p.icc_viewing_condition) self.assertEqual( p.intent_supported, { 0: (True, True, True), 1: (True, True, True), 2: (True, True, True), 3: (True, True, True) }) self.assertTrue(p.is_matrix_shaper) self.assertEqual(p.luminance, ((0.0, 80.0, 0.0), (0.0, 1.0, 80.0))) self.assertIsNone(p.manufacturer) assert_truncated_tuple_equal( p.media_black_point, ((0.012054443359375, 0.0124969482421875, 0.01031494140625), (0.34573304157549234, 0.35842450765864337, 0.0124969482421875))) assert_truncated_tuple_equal( p.media_white_point, ((0.964202880859375, 1.0, 0.8249053955078125), (0.3457029219802284, 0.3585375327567059, 1.0))) assert_truncated_tuple_equal((p.media_white_point_temperature, ), (5000.722328847392, )) self.assertEqual(p.model, 'IEC 61966-2-1 Default RGB Colour Space - sRGB') self.assertEqual(p.pcs, 'XYZ') self.assertIsNone(p.perceptual_rendering_intent_gamut) self.assertEqual(p.product_copyright, 'Copyright International Color Consortium, 2009') self.assertEqual(p.product_desc, 'sRGB IEC61966-2-1 black scaled') self.assertEqual(p.product_description, 'sRGB IEC61966-2-1 black scaled') self.assertEqual(p.product_manufacturer, '') self.assertEqual(p.product_model, 'IEC 61966-2-1 Default RGB Colour Space - sRGB') self.assertEqual(p.profile_description, 'sRGB IEC61966-2-1 black scaled') self.assertEqual(p.profile_id, b')\xf8=\xde\xaf\xf2U\xaexB\xfa\xe4\xca\x839\r') assert_truncated_tuple_equal( p.red_colorant, ((0.436065673828125, 0.2224884033203125, 0.013916015625), (0.6484536316398539, 0.3308524880306778, 0.2224884033203125))) assert_truncated_tuple_equal( p.red_primary, ((0.43606566581047446, 0.22248840582960838, 0.013916015621759925), (0.6484536250319214, 0.3308524944738204, 0.22248840582960838))) self.assertEqual(p.rendering_intent, 0) self.assertIsNone(p.saturation_rendering_intent_gamut) self.assertIsNone(p.screening_description) self.assertIsNone(p.target) self.assertEqual(p.technology, 'CRT ') self.assertEqual(p.version, 2.0) self.assertEqual(p.viewing_condition, 'Reference Viewing Condition in IEC 61966-2-1') self.assertEqual(p.xcolor_space, 'RGB ')