w

debye_bec/devices/pilatus/pilatus.py

@@ -193,14 +193,14 @@ class Pilatus(PSIDeviceBase, ADBase):
                 data = np.reshape(value, (height, width))
                 last_image: DevicePreviewMessage = self.preview.get()
 
-                if last_image is None:
-                    return
-                elif np.array_equal(data, last_image.data):
-                    # No update if image is the same, ~2.5ms on 2400x2400 image (6M)
-                    logger.info(
-                        f"Pilatus preview image for {self.name} is the same as last one, not updating."
-                    )
+                if last_image is not None:
+                    if np.array_equal(data, last_image.data):
+                        # No update if image is the same, ~2.5ms on 2400x2400 image (6M)
+                        logger.info(
+                            f"Pilatus preview image for {self.name} is the same as last one, not updating."
+                        )
                     return
+
                 logger.info(f"Setting data for {self.name}")
                 self.preview.put(data)
             except Exception:  # pylint: disable=broad-except