Read Interop EXIF subdirectory

Tests/test_file_jpeg.py

@@ -255,6 +255,21 @@ class TestFileJpeg(PillowTestCase):
         # Should not raise a TypeError
         im._getexif()
 
+    def test_interop(self):
+        # Arrange
+        im = Image.open('Tests/images/flower.jpg')
+
+        # Act
+        exif = im._getexif()
+
+        # Assert
+        self.assertEqual(exif["interop"], {
+            1: 'R98',
+            2: b'0100',
+            4097: 2272,
+            4098: 1704
+        })
+
     def test_progressive_compat(self):
         im1 = self.roundtrip(hopper())
         self.assertFalse(im1.info.get("progressive"))

src/PIL/JpegImagePlugin.py

@@ -489,6 +489,18 @@ def _getexif(self):
         info = TiffImagePlugin.ImageFileDirectory_v1(head)
         info.load(file)
         exif[0x8825] = _fixup_dict(info)
+    # get interop
+    try:
+        # exif field 0xa005 is an offset pointer to the location
+        # of the nested embedded interop exif ifd.
+        # It should be a long, but may be corrupted.
+        file.seek(exif[0xa005])
+    except (KeyError, TypeError):
+        pass
+    else:
+        info = TiffImagePlugin.ImageFileDirectory_v1(head)
+        info.load(file)
+        exif["interop"] = _fixup_dict(info)
 
     return exif