1 files changed, 10 insertions, 5 deletions
diff --git a/rotord/src/cvimage.h b/rotord/src/cvimage.h
index feb7298..4921f78 100644
--- a/rotord/src/cvimage.h
+++ b/rotord/src/cvimage.h
@@ -93,12 +93,17 @@ namespace Rotor {
 			int getStride(){
 				return w*3;
 			}
+			bool clear(){
+				rgb.setTo(0);
+			};
 			bool setup(int _w,int _h){ //set up with internal data
-				rgb.create(_h,_w,CV_8UC3);
-				RGBdata=rgb.data; //can move to use the bare pointer eventually
-				ownsRGBdata=false; //will not be necessary
-				w=_w;
-				h=_h;
+				if (w!=_w|h!=h){
+					rgb.create(_h,_w,CV_8UC3);
+					RGBdata=rgb.data; //can move to use the bare pointer eventually
+					ownsRGBdata=false; //will not be necessary
+					w=_w;
+					h=_h;
+				}
 				return true;
 				/*
 				if (w!=_w||h!=_h||!ownsRGBdata||!ownsAdata||!ownsZdata){