Update app.py

app.py

@@ -21,6 +21,7 @@ app_ui = ui.page_fillable(
     shinyswatch.theme.minty(),
     ui.layout_sidebar(
         ui.sidebar(
+            ui.input_file("tile_image", "Choose TIFF File", accept=[".tif"], multiple=False),
             # Artwork by @allison_horst
             ui.input_selectize(
                 "xvar",
@@ -53,6 +54,20 @@ app_ui = ui.page_fillable(
 
 
 def server(input: Inputs, output: Outputs, session: Session):
+    @reactive.Calc
+    def uploaded_image_path() -> str:
+        """Returns the path to the uploaded image"""
+        if input.tile_image() is not None:
+            return input.tile_image()[0]  # Assuming multiple=False
+        else:
+            return ""  # No image uploaded
+    
+    @output
+    @render.ui
+    def uploaded_image():
+        """Displays the uploaded image"""
+        return ui.tags.img(src=uploaded_image_path(), style={"max-width": "100%"})
+    
     @reactive.Calc
     def filtered_df() -> pd.DataFrame:
         """Returns a Pandas data frame that includes only the desired rows"""