Update app.py

app.py

@@ -85,9 +85,9 @@ def fourier_transform_drawing(input_image, frames, coefficients, img_size, blur_
         # Convert the Matplotlib figure to a PIL Image
         canvas = fig.canvas
         canvas.draw()
-        image = Image.frombytes('RGB', 
-                                canvas.get_width_height(),
-                                canvas.tostring_rgb())
+        w, h = canvas.get_width_height()
+        buf = np.frombuffer(canvas.buffer_rgba(), dtype=np.uint8)
+        image = Image.fromarray(buf.reshape(h, w, 4), 'RGBA').convert('RGB')
         last_image = image
 
         # Yield the current image and a placeholder for the final animation