Added NEF, NEF High Efficiency Star to img:onboard_compression_type

Author: NamrataM

src/PDS4_IMG_IngestLDD.xml

@@ -273,9 +273,10 @@
     - Added new attribute threshold_pixel to Saturated, Nonlinear, and Hot Pixel classes (for M20 MastCam-Z)
     - Added new classes and attributes (for Artemis)
     - Added "Nikon NEF Compressed" as valid for img:onboard_compression_type
+    - Added "NEF", "NEF High Efficiency Star" to img:onboard_compression_type (for Artemis)
 
   </comment>
-  <last_modification_date_time>2026-06-30T21:00Z</last_modification_date_time>
+  <last_modification_date_time>2026-07-14T15:00Z</last_modification_date_time>
 
   <!--                     -->
   <!--  Attributes: BEGIN  -->
@@ -3434,6 +3435,14 @@
         <value>Wavelet</value>
         <value_meaning>Wavelet compression works by identifying repeating patterns in the content and representing them mathematically.</value_meaning>
       </DD_Permissible_Value>
+      <DD_Permissible_Value>
+        <value>NEF</value>
+        <value_meaning>Lossless compression retains 100% of the image data</value_meaning>
+      </DD_Permissible_Value>
+      <DD_Permissible_Value>
+        <value>NEF High Efficiency Star</value>
+        <value_meaning>Compresses roughly 50% while preserving visually identical image quality</value_meaning>
+      </DD_Permissible_Value>
     </DD_Value_Domain>
   </DD_Attribute>