Update image processor parameters if creating with kwargs (#20866)

* Update parameters if creating with kwargs

* Shallow copy to prevent mutating input

* Pass all args in constructor dict - warnings in init

* Fix typo

tests/models/mobilevit/test_feature_extraction_mobilevit.py

@@ -93,6 +93,15 @@ class MobileViTFeatureExtractionTest(FeatureExtractionSavingTestMixin, unittest.
         self.assertTrue(hasattr(feature_extractor, "center_crop"))
         self.assertTrue(hasattr(feature_extractor, "do_flip_channel_order"))
 
+    def test_feat_extract_from_dict_with_kwargs(self):
+        feature_extractor = self.feature_extraction_class.from_dict(self.feat_extract_dict)
+        self.assertEqual(feature_extractor.size, {"shortest_edge": 20})
+        self.assertEqual(feature_extractor.crop_size, {"height": 18, "width": 18})
+
+        feature_extractor = self.feature_extraction_class.from_dict(self.feat_extract_dict, size=42, crop_size=84)
+        self.assertEqual(feature_extractor.size, {"shortest_edge": 42})
+        self.assertEqual(feature_extractor.crop_size, {"height": 84, "width": 84})
+
     def test_batch_feature(self):
         pass