Have figured out that we need a LOT of ICC standard documents.

glymur/jp2box.py

@@ -282,9 +282,12 @@ class ICCProfile:
         offset = data[1::3]
         size = data[2::3]
         for j in range(num_tags):
-            print("{0} at {1} of length {2}".format(signature[j],
-                                                    offset[j],
-                                                    size[j]))
+            sig = buffer[132 + j * 4:132 + (j + 1) * 4]
+            print(sig)
+            import pdb; pdb.set_trace()
+            tag_buffer = buffer[offset[j]:offset[j] + size[j]]
+            if sig == b'desc':
+                table['desc'] = _MultiLocalizedUnicodeType(tag_buffer)
 
     def parse_header(self, buffer):
         """See section 7.2"""
@@ -333,6 +336,19 @@ class ICCProfile:
         msg = msg.format(self.size,
                          self.preferred_cmm_type)
 
+class _MultiLocalizedUnicodeType:
+    def __init__(self, buffer):
+        import pdb; pdb.set_trace()
+        self.id = buffer[0:4].decode('utf-8')
+        data = struct.unpack('>II', buffer[8:16])
+        num_names = data[0]
+        self.record_size = data[1]
+
+        data = struct.unpack('>' + 'HHII' * num_names,
+                             buffer[16:16 + 12 * num_names])
+        for j in range(num_names):
+            print(j)
+
 class ComponentDefinitionBox(Jp2kBox):
     """Container for component definition box information.
 

glymur/test/test_icc.py

@@ -0,0 +1,68 @@
+import datetime
+import os
+import struct
+import sys
+import tempfile
+import unittest
+import warnings
+from xml.etree import cElementTree as ET
+
+import numpy as np
+import pkg_resources
+
+from glymur import Jp2k
+import glymur
+
+try:
+    data_root = os.environ['OPJ_DATA_ROOT']
+except KeyError:
+    data_root = None
+except:
+    raise
+
+
+class TestICC(unittest.TestCase):
+
+    def setUp(self):
+        self.jp2file = pkg_resources.resource_filename(glymur.__name__,
+                                                       "data/nemo.jp2")
+
+    def tearDown(self):
+        pass
+
+    @unittest.skipIf(data_root is None,
+                     "OPJ_DATA_ROOT environment variable not set")
+    def test_file5(self):
+        filename = os.path.join(data_root, 'input/conformance/file5.jp2')
+        j = Jp2k(filename)
+        profile = j.box[3].box[1].icc_profile
+        self.assertEqual(profile.size, 546)
+        self.assertEqual(profile.preferred_cmm_type, 0)
+        self.assertEqual(profile.version, '2.2.0')
+        self.assertEqual(profile.device_class, 'input device profile')
+        self.assertEqual(profile.colour_space, 'RGB')
+        self.assertEqual(profile.datetime,
+                         datetime.datetime(2001,8,30,13,32,37))
+        self.assertEqual(profile.file_signature, 'acsp')
+        self.assertEqual(profile.platform, 'unrecognized')
+        self.assertTrue(profile.flags & 0x01)  # embedded
+        self.assertFalse(profile.flags & 0x02)  # use anywhere
+
+        self.assertEqual(profile.device_manufacturer, 'KODA')
+        self.assertEqual(profile.device_model, 'ROMM')
+
+        self.assertFalse(profile.device_attributes & 0x01)  # reflective
+        self.assertFalse(profile.device_attributes & 0x02)  # glossy
+        self.assertFalse(profile.device_attributes & 0x04)  # positive
+        self.assertFalse(profile.device_attributes & 0x08)  # colour
+        self.assertEqual(profile.rendering_intent & 0x00ff, 0)  # perceptual
+
+        np.testing.assert_almost_equal(profile.illuminant,
+                                       (0.964203, 1.000000, 0.824905),
+                                       decimal=6)
+
+        self.assertEqual(profile.creator, 'JPEG')
+
+if __name__ == "__main__":
+    unittest.main()
+