Update app.py

app.py

@@ -20,7 +20,9 @@ model = Pix2Pix_Turbo("sketch_to_image_stochastic")
 ITEMS_NAMES = [ "💡 Lamp","👜 Bag","🛋️ Sofa","🪑 Chair","🏎️ Car","🏍️ Motorbike"]
 MAX_SEED = np.iinfo(np.int32).max
 DEFAULT_ITEM_NAME = "💡 Lamp"
-
+empty_input_image = { 'background': Image.new("L", (512, 512), 255),
+             'layers': [Image.new("L", (512, 512), 255)],
+             'composite': Image.new("L", (512, 512), 255)    }
 
 def pil_image_to_data_uri(img, format='PNG'):
     buffered = BytesIO()
@@ -175,7 +177,7 @@ with gr.Blocks(css="style.css") as demo:
     with gr.Column(elem_id="main_block"):
         with gr.Row(elem_id="board_row"):
             with gr.Group(elem_id="input_image_container", elem_classes="image_container" ):
-                image = gr.Sketchpad(type="pil", image_mode="L",container=False, height="100%", width="100%",
+                image = gr.Sketchpad(type="pil", image_mode="L",container=False, height="100%", width="100%", value = empty_input_image,
                     # invert_colors=True, shape=(512, 512), brush_radius=4, 
                     interactive=True, show_download_button=True, elem_id="input_image", show_label=False)
                 gr.HTML("""<img src="file=assets/drawCta.png" id="draw_cta" alt="draw here image" />""",elem_id="draw_cta_container")