diff --git a/src/src/base/infinitiViewer.cxx b/src/src/base/infinitiViewer.cxx
index 1c4632a..7cfb61b 100644
--- a/src/src/base/infinitiViewer.cxx
+++ b/src/src/base/infinitiViewer.cxx
@@ -1209,7 +1209,8 @@ void infinitiViewer::initTopLeftCornerInfo(const std::string& lbl_ser_num, const
 
 void infinitiViewer::initCornerInfo(ExtendMedicalImageProperties* pSeries)
 {
-	if (pSeries->GetNumberOfWindowLevelPresets() > 0)
+    // mono and has preset
+	if (pSeries->GetNumberOfWindowLevelPresets() > 0 && pSeries->GetSamplePerPixel()==1)
 	{
 		double* wwwl = pSeries->GetNthWindowLevelPreset(0);
 		m_cornerInfo.win_level = (int)wwwl[1];