保存检测到目标的时间和图片

Signed-off-by: JoeAllen <2494136784@qq.com>

src/main/java/cn/heavenlybook/Main.java

@@ -67,6 +67,7 @@ public class Main {
       }
     }
     canvas.dispose();
+    converter.close();
     grabber.close();
   }
 }