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.

rtgui/preferences.h

@@ -76,6 +76,10 @@ class Preferences : public Gtk::Dialog {
     Gtk::SpinButton*  dcbIterations;
     Gtk::CheckButton* dcbEnhance;
 	Gtk::CheckButton* caAutoCorrect;//Emil's CA correction
+	Gtk::CheckButton* HotDeadPixFilt;//Emil's hot/dead pixel filter
+	Gtk::Label* LineDenoiseLabel;//Emil's line denoise
+	Gtk::SpinButton*  LineDenoise;
+
     Gtk::FileChooserButton* iccDir;
     Gtk::FileChooserButton* monProfile;