Update app.py

app.py

@@ -306,8 +306,8 @@ class UpscalerApp:
                     input_image_blind = gr.Image(type="pil", label="Source Image")
                 compare_button = gr.Button("Compare Upscalers")
                 with gr.Row():
-                    output_image_a = gr.Image(label="Result A", interactive=False)
-                    output_image_b = gr.Image(label="Result B", interactive=False)
+                    output_image_a = gr.Image(label="Result A", interactive=False, format="png")
+                    output_image_b = gr.Image(label="Result B", interactive=False, format="png")
                 with gr.Row():
                     choose_a_button = gr.Button("I prefer Result A", interactive=False)
                     choose_b_button = gr.Button("I prefer Result B", interactive=False)
@@ -333,11 +333,11 @@ class UpscalerApp:
                 gr.Markdown("Select an upscaler model, choose a scaling factor, and process your image.")
                 with gr.Row():
                     with gr.Column(scale=1):
-                        input_image_playground = gr.Image(type="pil", label="Source Image")
+                        input_image_playground = gr.Image(type="pil", label="Source Image", format="png")
                         upscaler_model_dropdown = gr.Dropdown(choices=list(UPSCALER_DICT_GUI.keys()), label="Upscaler Model")
                         run_button_playground = gr.Button("Run Upscale")
                     with gr.Column(scale=2):
-                        output_image_playground = gr.Image(label="Upscaled Result", interactive=False)
+                        output_image_playground = gr.Image(label="Upscaled Result", interactive=False, format="png")
 
                 run_button_playground.click(
                     fn=gpu_tab2,