added label and confidence as output for yolo results (#316)

* added label and confidence as output

* updates yolo test to use label instead of className

Author: joeyklee

src/YOLO/index.js

@@ -127,8 +127,8 @@ class YOLOBase extends Video {
       w = Math.min(imageSize, w) - x;
 
       const resultObj = {
-        className,
-        classProb,
+        label: className,
+        confidence: classProb,
         x: x / imageSize,
         y: y / imageSize,
         w: w / imageSize,

src/YOLO/index_test.js

@@ -38,6 +38,6 @@ describe('YOLO', () => {
   it('detects a robin', async () => {
     const robin = await getRobin();
     const detection = await yolo.detect(robin);
-    expect(detection[0].className).toBe('bird');
+    expect(detection[0].label).toBe('bird');
   });
 });