diff --git a/metrics.py b/metrics.py
index f7393a4..6d3de14 100644
--- a/metrics.py
+++ b/metrics.py
@@ -31,6 +31,8 @@ def readImages(renders_dir, gt_dir):
         renders.append(tf.to_tensor(render).unsqueeze(0)[:, :3, :, :].cuda())
         gts.append(tf.to_tensor(gt).unsqueeze(0)[:, :3, :, :].cuda())
         image_names.append(fname)
+        gt.close()
+        render.close()
     return renders, gts, image_names
 
 def evaluate(model_paths):
diff --git a/scene/dataset_readers.py b/scene/dataset_readers.py
index 2a6f904..6718123 100644
--- a/scene/dataset_readers.py
+++ b/scene/dataset_readers.py
@@ -96,7 +96,9 @@ def readColmapCameras(cam_extrinsics, cam_intrinsics, images_folder):
 
         image_path = os.path.join(images_folder, os.path.basename(extr.name))
         image_name = os.path.basename(image_path).split(".")[0]
-        image = Image.open(image_path)
+        image_fs = Image.open(image_path)
+        image = image_fs.copy()
+        image_fs.close()
 
         cam_info = CameraInfo(uid=uid, R=R, T=T, FovY=FovY, FovX=FovX, image=image,
                               image_path=image_path, image_name=image_name, width=width, height=height)
@@ -199,6 +201,9 @@ def readCamerasFromTransforms(path, transformsfile, white_background, extension=
 
             image_path = os.path.join(path, cam_name)
             image_name = Path(cam_name).stem
+            image_fs = Image.open(image_path)
+            image = image_fs.copy()
+            image_fs.close()
             image = Image.open(image_path)
 
             im_data = np.array(image.convert("RGBA"))
@@ -257,4 +262,4 @@ def readNerfSyntheticInfo(path, white_background, eval, extension=".png"):
 sceneLoadTypeCallbacks = {
     "Colmap": readColmapSceneInfo,
     "Blender" : readNerfSyntheticInfo
-}
\ No newline at end of file
+}