Update app.py

app.py

@@ -63,9 +63,12 @@ def detect_objects(model_name,url,image_upload,threshold):
     elif 'yolos' in model_name:
     
         model = YolosForObjectDetection.from_pretrained(model_name)
+    
+    if url:
         
-    if validators.url(url):
-        image = Image.open(requests.get(url, stream=True).raw)
+        if validators.url(url):
+            image = Image.open(requests.get(url, stream=True).raw)
+            
     elif image_upload:
         image = image_upload
     
@@ -105,14 +108,14 @@ with demo:
     slider_input = gr.Slider(minimum=0.2,maximum=1,value=0.7,label='Prediction Threshold')
     
     with gr.Tabs():
-        with gr.Tabitem('Image URL'):
+        with gr.TabItem('Image URL'):
             with gr.Row():
                 url_input = gr.Textbox(lines=1,label='Enter valid image URL here..')
                 img_output_from_url = gr.Image(shape=(450,450))
             
             url_but = gr.Button('Detect')
      
-        with gr.Tabitem('Image Upload'):
+        with gr.TabItem('Image Upload'):
             with gr.Row():
                 img_input = gr.Image(type='pil')
                 img_output_from_upload= gr.Image(shape=(450,450))