Update app.py

app.py

@@ -65,5 +65,5 @@ else:
     st.write(cnn.apply({"params": params}, input).argmax(axis=1)[0])
 
 with st.expander("See first convolutional layer"):
-    rgb = np.repeat(np.expand_dims(np.array(params["Conv_0"]["kernel"].squeeze()[:,:,0]+1)*127., axis=0), repeats=3, axis=0).transpose(1,2,0)
+    rgb = np.repeat(np.expand_dims(np.array(params["Conv_0"]["kernel"].squeeze()[:,:,0]+1)*127., axis=0), repeats=3, axis=0).astype(np.uint8).transpose(1,2,0)
     st.image(Image.fromarray(rgb, mode="RGB").resize((28, 28)))