modify model and webcam function

@@ -172,8 +172,11 @@
     
     let model, webcam, labelContainer, maxPredictions;
 
+    //predic이전 값을 기억해주는 전역변수. -999로 초기화.
+    var last_result_predict=-999;
+
     // Load the image model and setup the webcam
-        async function init() {
+    window.onload = async function init() {
         const modelURL = URL + "model.json";
         const metadataURL = URL + "metadata.json";
 
@@ -186,7 +189,7 @@
 
         // Convenience function to setup a webcam
         const flip = true; // whether to flip the webcam
-            webcam = new tmImage.Webcam(200, 200, flip); // width, height, flip
+        webcam = new tmImage.Webcam(550, 550, flip); // width, height, flip
         await webcam.setup(); // request access to the webcam
         await webcam.play();
         window.requestAnimationFrame(loop);