feat: Refactor app.py to improve code structure and add image upload functionality

app.py

@@ -7,7 +7,7 @@ tile_upscaler_url = "https://gokaygokay-tileupscalerv2.hf.space"
 
 client_tile_upscaler = Client(tile_upscaler_url)
 
-def gradio_process_image(image, resolution, num_inference_steps, strength, hdr, guidance_scale, controlnet_strength, scheduler_name):
+def upscale_image(image, resolution, num_inference_steps, strength, hdr, guidance_scale, controlnet_strength, scheduler_name):
   result = client_tile_upscaler.predict(
       param_0=handle_file(image),
       param_1=resolution,
@@ -19,8 +19,12 @@ def gradio_process_image(image, resolution, num_inference_steps, strength, hdr,
       param_7=scheduler_name,
       api_name="/wrapper"
   )
-  print(result)
   return result
+
+def clear_output(image_slider):
+  image_slider[0] = None
+  image_slider[1] = None
+  return image_slider
   
 
 with gr.Blocks() as demo:
@@ -47,9 +51,13 @@ with gr.Blocks() as demo:
 
 
     run_button.click(
-      fn=gradio_process_image, 
-      inputs=[input_image, resolution, num_inference_steps, strength, hdr, guidance_scale, controlnet_strength, scheduler_name],
+      fn=clear_output,
+      inputs=[output_slider]
       outputs=output_slider
+    ).then(
+      upscale_image, 
+      [input_image, resolution, num_inference_steps, strength, hdr, guidance_scale, controlnet_strength, scheduler_name],
+      output_slider
     )
     
 demo.launch()