Index: trunk/ppImage/src/ppImage.h
===================================================================
--- trunk/ppImage/src/ppImage.h	(revision 23845)
+++ trunk/ppImage/src/ppImage.h	(revision 24079)
@@ -44,6 +44,6 @@
     bool checkCTE;                      // measure pixel-based variance
 
-    bool doCrosstalkMeasure;		// measure crosstalk signal
-    bool doCrosstalkCorrect;		// apply crosstalk correction
+    bool doCrosstalkMeasure;            // measure crosstalk signal
+    bool doCrosstalkCorrect;            // apply crosstalk correction
 
     // output files requested
@@ -69,4 +69,5 @@
     psImageMaskType lowMask;            // Mask value to give bad pixels
     psImageMaskType flatMask;           // Mask value to give bad flat pixels
+    psImageMaskType darkMask;           // Mask value to give bad dark pixels
     psImageMaskType blankMask;          // Mask value to give blank pixels