Update app.py

app.py

@@ -92,12 +92,16 @@ def fourier_transform_drawing(input_image, frames, coefficients, img_size, blur_
         yield from animate(frame, coefs, np.linspace(0, 1, num=frames))
 
     # Generate final animation as GIF
-    anim = animation.FuncAnimation(fig, animate, frames=frames, interval=5, fargs=(coefs, np.linspace(0, 1, num=frames)))
-    gif_buf = io.BytesIO()
-    anim.save(gif_buf, 'output.gif', fps=15)
-    gif_buf.seek(0)
-    final_gif = Image.open(gif_buf)
-    final_gif = np.array(final_gif.convert('RGB'))
+    with tempfile.NamedTemporaryFile(delete=False, suffix='.gif') as temp_file:
+        anim = animation.FuncAnimation(fig, animate, frames=frames, interval=5, fargs=(coefs, np.linspace(0, 1, num=frames)))
+        anim.save(temp_file.name, fps=15)
+
+        # Read the final GIF
+        with open(temp_file.name, 'rb') as gif_file:
+            final_gif = np.array(Image.open(io.BytesIO(gif_file.read())))
+
+    # Remove the temporary file
+    os.remove(temp_file.name)
 
     # Yield the final GIF in place of the last frame
     yield (image, final_gif)