App bug fix.

app.py

@@ -120,14 +120,7 @@ def plot_results(pil_img, prob, boxes):
 
         cv2.rectangle(img, c1, c2, c, thickness=2, lineType=cv2.LINE_AA)
         
-        cv2.putText(
-            img, 
-            f'{id2label[cl.item()]}: {p[cl]:0.2f}', 
-            [xmin + 5, ymin + 5], 
-            cv2.FONT_HERSHEY_SIMPLEX, 
-            0.7, 
-            c, 
-            2)
+        cv2.putText(img, f'{id2label[cl.item()]}: {p[cl]:0.2f}', [int(xmin) + 5, int(ymin) + 5], cv2.FONT_HERSHEY_SIMPLEX, 0.7, c, 2)
         # ax.text(xmin, ymin, text, fontsize=10,
         #         bbox=dict(facecolor=c, alpha=0.5))
     return Image.fromarray(img)