diff --git a/datasets/raise/extract_noise.py b/datasets/raise/extract_noise.py
index f7ce708..f99174e 100755
--- a/datasets/raise/extract_noise.py
+++ b/datasets/raise/extract_noise.py
@@ -37,13 +37,18 @@ if raiseNotFlatFields:
 
     imagesFileNames = [imageFileName for imageFileName in tqdm(imagesFileNames, 'Filtering images') if files[imageFileName]['Device'] == 'Nikon D7000' and Image.open(f'{imagesFolderPath}/png/{imageFileName}').size == (4946, 3278)]
 
-ranges = {
-    'sky': range(2_699, 2_807),
-    'wall': range(2_807, 2_912),
-}
-type_ = 'sky'
-imagesFileNames = [f'DSC0{imageIndex}.ARW' for imageIndex in ranges[type_]]
-imagesFolderPathFileName += f'_{type_}'
+# Among:
+# - `None`
+# - `"sky"`
+# - `"wall"`
+type_ = None
+if type_ is not None:
+    ranges = {
+        'sky': range(2_699, 2_807),
+        'wall': range(2_807, 2_912),
+    }
+    imagesFileNames = [f'DSC0{imageIndex}.ARW' for imageIndex in ranges[type_]]
+    imagesFolderPathFileName += f'_{type_}'
 
 minColor = None
 maxColor = None