diff --git a/src/darsia/image/image.py b/src/darsia/image/image.py
index de8f812e..dface5b4 100644
--- a/src/darsia/image/image.py
+++ b/src/darsia/image/image.py
@@ -1627,7 +1627,7 @@ def write(self, path: Path, **kwargs) -> None:
 
         """
         # Write image, using the conventional matrix indexing
-        ubyte_image = skimage.img_as_ubyte(self.img)
+        ubyte_image = self.img_as(np.uint8).img
         suffix = Path(path).suffix.lower()
 
         if suffix in [".jpg", ".jpeg"]:
@@ -1742,7 +1742,7 @@ def write(self, path: Path, **kwargs) -> None:
 
         # Write image, using the conventional matrix indexing
         if self.original_dtype == np.uint8:
-            ubyte_image = skimage.img_as_ubyte(bgr_array)
+            ubyte_image = bgr_image.img_as(np.uint8).img
             suffix = Path(path).suffix.lower()
 
             if suffix in [".jpg", ".jpeg"]: