diff --git a/AIEngineModule/src/AIModel_Impl.cpp b/AIEngineModule/src/AIModel_Impl.cpp
index f90c263..edd402c 100644
--- a/AIEngineModule/src/AIModel_Impl.cpp
+++ b/AIEngineModule/src/AIModel_Impl.cpp
@@ -175,17 +175,24 @@ cv::Mat AIModel_Impl::InitMat(int channel, int w, int h)
 {
     if (w <= 0 || h <= 0 || channel <= 0 || channel > 3)
     {
+        printf("InitMat: invalid params channel=%d w=%d h=%d\n", channel, w, h);
         return cv::Mat();
     }
 
     cv::Mat dst;
     if (channel == 1)
     {
-        dst = cv::Mat(h, w, CV_8UC1, cv::Scalar(0));
+        dst = cv::Mat::zeros(h, w, CV_8UC1);
     }
     else
     {
-        dst = cv::Mat(h, w, CV_8UC3, cv::Scalar(0, 0, 0));
+        dst = cv::Mat::zeros(h, w, CV_8UC3);
+    }
+
+    if (dst.empty() || dst.data == NULL)
+    {
+        printf("InitMat: cv::Mat::zeros failed, channel=%d w=%d h=%d\n", channel, w, h);
+        return cv::Mat();
     }
     return dst;
 }