def test_parse_exif_numeric(self):
"""
Tests :func:`colour_hdri.utilities.exif.parse_exif_numeric` definition.
"""
exif_tag = ExifTag('EXIF', 'Focal Length', '16', '37386')
self.assertEqual(parse_exif_numeric(exif_tag), 16)
exif_tag = ExifTag('EXIF', 'Focal Length', '16', '37386')
self.assertIsInstance(parse_exif_numeric(exif_tag, np.int_), np.int_)
def test_parse_exif_fraction(self):
"""
Tests :func:`colour_hdri.utilities.exif.parse_exif_fraction`
definition.
"""
exif_tag = ExifTag('EXIF', 'Exposure Time', '0.01666666667', '33434')
self.assertAlmostEqual(
parse_exif_fraction(exif_tag), 0.01666666, places=7)
exif_tag = ExifTag('EXIF', 'Exposure Time', '10/4000', '33434')
self.assertAlmostEqual(
parse_exif_fraction(exif_tag), 0.00250000, places=7)
self.assertIsInstance(parse_exif_fraction(exif_tag, np.int_), np.int_)
def test_parse_exif_string(self):
"""
Tests :func:`colour_hdri.utilities.exif.parse_exif_string` definition.
"""
exif_tag = ExifTag('EXIF', 'Make', 'Canon', '271')
self.assertEqual(parse_exif_string(exif_tag), 'Canon')
def test_parse_exif_array(self):
"""
Tests :func:`colour_hdri.utilities.exif.parse_exif_array` definition.
"""
exif_tag = ExifTag(
'EXIF',
'Color Matrix 1',
('0.5309 -0.0229 -0.0336 '
'-0.6241 1.3265 0.3337 '
'-0.0817 0.1215 0.6664'),
'50721') # yapf: disable
np.testing.assert_array_equal(
parse_exif_array(exif_tag),
np.array([
0.5309, -0.0229, -0.0336,
-0.6241, 1.3265, 0.3337,
-0.0817, 0.1215, 0.6664])) # yapf: disable
np.testing.assert_array_equal(
parse_exif_array(exif_tag, shape=(3, 3)),
np.array([
[0.5309, -0.0229, -0.0336],
[-0.6241, 1.3265, 0.3337],
[-0.0817, 0.1215, 0.6664]])) # yapf: disable
def read_dng_files_exif_tags(dng_files,
exif_tags_binding=DNG_EXIF_TAGS_BINDING):
"""
Reads given *dng* files exif tags using given binding.
Parameters
----------
dng_files : array_like
*dng* files to read the exif tags from.
exif_tags_binding : dict_like
Exif tags binding.
Returns
-------
list
*dng* files exif tags.
"""
dng_files_exif_tags = []
for dng_file in dng_files:
exif_tags = read_exif_tags(dng_file)
binding = deepcopy(exif_tags_binding)
for group, tags in binding.items():
for tag in tags:
exif_tag = exif_tags[group].get(tag)
parser = binding[group][tag][0]
if exif_tag is None:
default = binding[group][tag][1]
binding[group][tag] = (
default if default is None else parser(
ExifTag(value=binding[group][tag][1])))
else:
binding[group][tag] = parser(exif_tag[0])
dng_files_exif_tags.append(binding)
return dng_files_exif_tags
def test_read_exif_tags(self):
"""
Tests :func:`colour_hdri.utilities.exif.read_exif_tags` definition.
"""
test_jpg_image = filter_files(FROBISHER_001_DIRECTORY, ('jpg', ))[0]
exif_data = vivified_to_dict(read_exif_tags(test_jpg_image))
self.assertIsInstance(exif_data, type(dict()))
self.assertListEqual(sorted(exif_data.keys()), [
'Composite', 'EXIF', 'ExifTool', 'File', 'ICC_Profile', 'JFIF',
'Photoshop', 'XMP'
])
self.assertListEqual(
sorted(exif_data['EXIF'].values()),
[[ExifTag('EXIF', 'Camera Model Name', 'EOS 5D Mark II', '272')],
[ExifTag('EXIF', 'Create Date', '2015:09:19 03:39:20', '36868')],
[ExifTag('EXIF', 'Date/Time Original',
'2015:09:19 03:39:20', '36867')],
[ExifTag('EXIF', 'Exif Image Height', '426', '40963')],
[ExifTag('EXIF', 'Exif Image Width', '640', '40962')],
[ExifTag('EXIF', 'Exposure Time', '0.125', '33434')],
[ExifTag('EXIF', 'F Number', '8', '33437')],
[ExifTag('EXIF', 'Focal Length', '16', '37386')],
[ExifTag('EXIF', 'ISO', '100', '34855')],
[ExifTag('EXIF', 'Make', 'Canon', '271')],
[ExifTag('EXIF', 'Modify Date', '2015:09:19 03:39:20', '306')],
[ExifTag('EXIF', 'Orientation', '1', '274')],
[ExifTag('EXIF', 'Photometric Interpretation', '2', '262')],
[ExifTag('EXIF', 'Resolution Unit', '2', '296')],
[ExifTag('EXIF', 'Software', 'Photos 1.0.1', '305')],
[ExifTag('EXIF', 'X Resolution', '72', '282')],
[ExifTag('EXIF', 'Y Resolution', '72', '283')]]) # yapf: disable