some minor improvements.

[stickletrack.git] / masking.cpp

diff --git a/masking.cpp b/masking.cpp
index b90153e402e55e27fcee228b6cc7d88e2fcff426..cad10f1995bb625e1b86c9ca3d29e68752dd1ab4 100644 (file)
--- a/masking.cpp
+++ b/masking.cpp
@@ -5,10 +5,12 @@
 
 static Mat background, foregroundmask, colormask, mScissors, scissorsmask;
 static double Z = 1;
+static bool recomputeScissors = true;
 
 void mouseScissors(int evt, int x, int y, int flags, void* param){
   if (evt==CV_EVENT_LBUTTONDOWN) {
     Prefs.scissorpoints->push_back( Point(x, y) );
+    recomputeScissors = true;
   }
 
   else if (evt==CV_EVENT_RBUTTONDOWN) {
@@ -23,8 +25,10 @@ void mouseScissors(int evt, int x, int y, int flags, void* param){
        nearestid = ipoint;
       }
     }
-    if ( nearestid != -1 )
+    if ( nearestid != -1 ) {
       Prefs.scissorpoints->erase( Prefs.scissorpoints->begin() + nearestid );
+      recomputeScissors = true;
+    }
   }
 }
 
@@ -94,10 +98,6 @@ void computeScissorsMask (Mat& scissorsmask) {
   }
   else
     scissorsmask = Mat::ones(Props.height, Props.width, CV_8U);
-
-  //if ( ! windowclosed_sissors )
-  if ( ! isWindowClosed("stickletrack_masking_scissorsmask") )
-    imshow("stickletrack_masking_scissorsmask", mScissors);
 }
 
 void masking_getCombinedMask(const Mat& origframe, Mat& combinedmask) {
@@ -108,10 +108,16 @@ void masking_getCombinedMask(const Mat& origframe, Mat& combinedmask) {
 
   computeColorMask(origframe, colormask);
 
-
   computeScissors(origframe, mScissors);
-  computeScissorsMask(scissorsmask);
 
+  if ( recomputeScissors ) {
+    computeScissorsMask(scissorsmask);
+    recomputeScissors = false;
+  }
+
+  if ( ! isWindowClosed("stickletrack_masking_scissorsmask") )
+    imshow("stickletrack_masking_scissorsmask", mScissors);
+  
   bitwise_and(foregroundmask, colormask, combinedmask);
   bitwise_and(combinedmask, scissorsmask, combinedmask);
 }