Update app.py

app.py

@@ -147,13 +147,13 @@ if st.button("Generate HeatMap & DataFrame"):
         for idx, image in enumerate(selected_images):
             # Convert the image to a format that can be inserted into Excel
             image_stream = io.BytesIO()
-            image.save(image_stream, format='PNG')
+            image.save(image_stream, format='JPEG')  # image.save(image_stream, format='JPEG')  # Save the image as JPEG; or PNG
             image_stream.seek(0)
             # Calculate the scaling factor to fit the image inside the cell
             cell_width = 64
             scale_factor = cell_width / image.width
             # Insert the image into the cell
-            worksheet.insert_image(f'J{idx + 2}', 'image.png', {
+            worksheet.insert_image(f'J{idx + 2}', 'image.jpg', {      #or image.png
                 'image_data': image_stream,
                 'x_scale': scale_factor,
                 'y_scale': scale_factor,