Index: trunk/psModules/src/imcombine/pmSubtractionEquation.h
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionEquation.h	(revision 18287)
+++ trunk/psModules/src/imcombine/pmSubtractionEquation.h	(revision 18962)
@@ -4,4 +4,14 @@
 #include "pmSubtractionStamps.h"
 #include "pmSubtractionKernels.h"
+
+/// Execute a thread job to calculate the least-squares equation for a stamp
+bool pmSubtractionCalculateEquationThread(const psThreadJob *job ///< Job to execute
+    );
+
+/// Calculate the least-squares equation to match the image quality for a single stamp
+bool pmSubtractionCalculateEquationStamp(pmSubtractionStampList *stamps, ///< Stamps
+                                         const pmSubtractionKernels *kernels, ///< Kernel parameters
+                                         int index ///< Index of stamp
+                                    );
 
 /// Calculate the least-squares equation to match the image quality