update 2d_registration (#805)

Signed-off-by: KumoLiu <yunl@nvidia.com>

Author: KumoLiu

2d_registration/registration_mednist.ipynb

@@ -107,7 +107,6 @@
     "    RandRotateD,\n",
     "    RandZoomD,\n",
     "    ScaleIntensityRanged,\n",
-    "    EnsureTypeD,\n",
     ")\n",
     "from monai.data import DataLoader, Dataset, CacheDataset\n",
     "from monai.config import print_config, USE_COMPILED\n",
@@ -236,7 +235,6 @@
     "                             a_min=0., a_max=255., b_min=0.0, b_max=1.0, clip=True,),\n",
     "        RandRotateD(keys=[\"moving_hand\"], range_x=np.pi/4, prob=1.0, keep_size=True, mode=\"bicubic\"),\n",
     "        RandZoomD(keys=[\"moving_hand\"], min_zoom=0.9, max_zoom=1.1, prob=1.0, mode=\"bicubic\", align_corners=False),\n",
-    "        EnsureTypeD(keys=[\"fixed_hand\", \"moving_hand\"]),\n",
     "    ]\n",
     ")"
    ]
@@ -559,7 +557,7 @@
    "toc_visible": true
   },
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -573,7 +571,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.10"
+   "version": "3.8.13"
   }
  },
  "nbformat": 4,