diff --git a/imgproc/imgprc_mgr.cpp b/imgproc/imgprc_mgr.cpp
index d4cf8e6..ceb374f 100644
--- a/imgproc/imgprc_mgr.cpp
+++ b/imgproc/imgprc_mgr.cpp
@@ -188,6 +188,16 @@ void imgproc_mgr::start_workers(int cnt)
 		raw_.trigger();
 	workers_.stop(nullptr);
 	run_ = true;
+#ifdef REBUILD_IN_CIS_THREAD
+	raw_.clear();
+#else	
+	RAWIMG	ele;
+	while(raw_.take(ele))
+	{
+		if(ele.img)
+			ele.data->release();
+	}
+#endif
 
 #ifdef USE_THREAD_PAGED_DATA
 	for(auto& v: params_)