Index: /issm/trunk/src/m/model/plot/plot_overlay.m
===================================================================
--- /issm/trunk/src/m/model/plot/plot_overlay.m	(revision 6365)
+++ /issm/trunk/src/m/model/plot/plot_overlay.m	(revision 6366)
@@ -68,4 +68,6 @@
 %Build hsv color image from radar and results
 radar=md.sarpwr;
+contrast=getfieldvalue(options,'contrast',1);  
+radar=radar.^(contrast);
 transparency=getfieldvalue(options,'alpha',1.5);  %Rignot's setting: 1.5
 cutoff=getfieldvalue(options,'cutoff',1.5);       %Rignot's setting: 1.5
Index: /issm/trunk/src/m/model/plot/plotdoc.m
===================================================================
--- /issm/trunk/src/m/model/plot/plotdoc.m	(revision 6365)
+++ /issm/trunk/src/m/model/plot/plotdoc.m	(revision 6366)
@@ -96,4 +96,5 @@
 disp('       ''yticklabel'': specifiy yticklabel');
 disp('       ''overlay'': yes or no. This will overlay a radar amplitude image behind');
+disp('       ''contrast'': (default 1) coefficient to add contrast to the radar amplitude image used in overlays');
 disp('       ''cutoff'': all values below cutoff will be taken as cutoff (default is 1.5)');
 disp('       ''highres'': resolution of overlayed radar amplitude image (default is 0, high resolution is 1).');