Index: trunk/psModules/src/imcombine/pmReadoutCombine.c
===================================================================
--- trunk/psModules/src/imcombine/pmReadoutCombine.c	(revision 19086)
+++ trunk/psModules/src/imcombine/pmReadoutCombine.c	(revision 21183)
@@ -105,5 +105,5 @@
 
     // note the mask value actually used
-    psMaskType maskVal = params->maskVal; // The mask value
+    psImageMaskType maskVal = params->maskVal; // The mask value
     if (maskVal) {
         psString comment = NULL;        // Comment to add to header
@@ -247,6 +247,6 @@
     psF32 *pixelsData = pixels->data.F32; // Dereference pixels
 
-    psVector *mask   = psVectorAlloc(inputs->n, PS_TYPE_U8); // Mask for stack
-    psU8 *maskData = mask->data.U8;     // Dereference mask
+    psVector *mask   = psVectorAlloc(inputs->n, PS_TYPE_VECTOR_MASK); // Mask for stack
+    psVectorMaskType *maskData = mask->data.PS_TYPE_VECTOR_MASK_DATA;     // Dereference mask
 
     psVector *weights = NULL;           // Stack of weights
@@ -260,5 +260,5 @@
 
     float keepFrac = 1.0 - params->fracLow - params->fracHigh; // Fraction of pixels to keep
-    psMaskType maskVal = params->maskVal; // The mask value
+    psImageMaskType maskVal = params->maskVal; // The mask value
 
     #ifndef PS_NO_TRACE
@@ -278,5 +278,5 @@
     // Dereference output products
     psF32 **outputImage  = output->image->data.F32; // Output image
-    psU8  **outputMask   = output->mask->data.U8; // Output mask
+    psImageMaskType **outputMask   = output->mask->data.PS_TYPE_IMAGE_MASK_DATA; // Output mask
     psF32 **outputWeight = NULL; // Output weight map
     if (output->weight) {
@@ -303,5 +303,5 @@
 
             int numValid = 0;           // Number of valid pixels in the stack
-            memset(maskData, 0, mask->n * sizeof(psU8)); // Reset the mask
+            memset(maskData, 0, mask->n * sizeof(psVectorMaskType)); // Reset the mask
             for (int r = 0; r < inputs->n; r++) {
                 pmReadout *readout = inputs->data[r]; // Input readout
@@ -318,5 +318,5 @@
                 // Check mask
                 psImage *roMask = readout->mask; // The mask image
-                if (roMask && roMask->data.U8[yIn][xIn] & maskVal) {
+                if (roMask && roMask->data.PS_TYPE_IMAGE_MASK_DATA[yIn][xIn] & maskVal) {
                     maskData[r] = 1;
                     continue;