Index: trunk/ppStack/src/ppStackReadout.c
===================================================================
--- trunk/ppStack/src/ppStackReadout.c	(revision 18435)
+++ trunk/ppStack/src/ppStackReadout.c	(revision 18591)
@@ -32,7 +32,5 @@
     int iter = psMetadataLookupS32(NULL, config->arguments, "ITER"); // Rejection iterations
     float combineRej = psMetadataLookupF32(NULL, config->arguments, "COMBINE.REJ"); // Combination threshold
-    psMaskType maskBad = psMetadataLookupU8(NULL, config->arguments, "MASK.BAD"); // Value to mask
-    psMaskType maskBlank = psMetadataLookupU8(NULL, config->arguments, "MASK.BLANK"); // Mask for blank reg.
-//    float threshold = psMetadataLookupF32(NULL, config->arguments, "THRESHOLD.MASK"); // Threshold for mask deconvolution
+    psMaskType maskVal = pmConfigMaskGet("BLANK", config); // Value to mask
     bool useVariance = psMetadataLookupBool(&mdok, config->arguments, "VARIANCE"); // Use variance for rejection?
     bool safe = psMetadataLookupBool(&mdok, config->arguments, "SAFE"); // Play safe when combining small numbers of pixels?
@@ -67,5 +65,5 @@
     }
 
-    if (!pmStackCombine(outRO, stack, maskBad, maskBlank, kernelSize, iter, combineRej, true,
+    if (!pmStackCombine(outRO, stack, maskVal, maskVal, kernelSize, iter, combineRej, true,
                         useVariance, safe)) {
         psError(PS_ERR_UNKNOWN, false, "Unable to combine input readouts with rejection.");
@@ -93,5 +91,5 @@
                                             psRegionSet(0, outRO->image->numCols - 1,
                                                         0, outRO->image->numRows - 1),
-                                            maskBlank);
+                                            maskVal);
         psString name = NULL;           // Name of image
         psStringAppend(&name, "inspect_%03d_%03d.fits", sectionNum, i);
@@ -140,6 +138,5 @@
     // Get the recipe values
     bool mdok;                          // Status of MD lookup
-    psMaskType maskBad = psMetadataLookupU8(NULL, config->arguments, "MASK.BAD"); // Value to mask
-    psMaskType maskBlank = psMetadataLookupU8(NULL, config->arguments, "MASK.BLANK"); // Mask for blank reg.
+    psMaskType maskVal = pmConfigMaskGet("BLANK", config); // Value to mask
     bool useVariance = psMetadataLookupBool(&mdok, config->arguments, "VARIANCE"); // Use variance for rejection?
 
@@ -208,5 +205,5 @@
                                              psRegionSet(0, outRO->image->numCols - 1,
                                                          0, outRO->image->numRows - 1),
-                                             maskBlank);
+                                             maskVal);
             psString name = NULL;           // Name of image
             psStringAppend(&name, "reject_%03d.fits", i);
@@ -220,5 +217,5 @@
 #endif
 
-    if (!pmStackCombine(outRO, stack, maskBad, maskBlank, 0, 0, NAN, numGood != num, useVariance, false)) {
+    if (!pmStackCombine(outRO, stack, maskVal, maskVal, 0, 0, NAN, numGood != num, useVariance, false)) {
         psError(PS_ERR_UNKNOWN, false, "Unable to combine input readouts.");
         psFree(fpaList);