face-api canvas performance test

src/features/OnlineExam/Examing/FaceTracking.vue

@@ -136,8 +136,14 @@ export default {
         return;
       }
 
-      const detectStartTime = performance.now();
       const videoEl = document.getElementById("video");
+      // var canvas = document.createElement("canvas");
+      // canvas.width = 133;
+      // canvas.height = 100;
+
+      // var context = canvas.getContext("2d");
+      // context.drawImage(videoEl, 0, 0, 133, 100);
+      const detectStartTime = performance.now();
       // this.___vWidth =
       //   this.___vWidth ||
       //   document.getElementById("video-container").clientWidth;