CFA line denoise for removing pattern noise prior to demosaic. A dialog box is added to preferences to specify the amount of line denoising to be done. Eventually the choice of line denoise threshold should be stored with other processing settings in whatever sidecar file or cache specifies such things.

In addition, there are some improvements to AMaZE for better diagonal interpolation.

rtengine/rawimagesource.h

@@ -138,6 +138,11 @@ class RawImageSource : public ImageSource {
 		int	LinEqSolve			(int c, int dir, int nDim, float* pfMatr, float* pfVect, float* pfSolution);//Emil's CA auto correction
 		void CA_correct_RT		();
 	
+		void cfa_clean (float thresh);//Emil's hot/dead pixel filter
+	void ddct8x8s(int isgn, float **a);
+
+		void cfa_linedn (float linenoiselevel);//Emil's line denoise
+	
         void    eahd_demosaic   ();
         void    hphd_demosaic   ();
         void    vng4_demosaic   ();