title: Adding new features to the output of Flatten() layer in Keras
body: <p>I am doing image classification. Firstly I am feeding my images to my CNN model in Keras. </p>
  
  <p>I want to add new features at the output of Flatten layer in keras and then feed it to the dense layer(s). How do I write a code for it?</p>
  
  <p>Basically I am using Convolution for images and then at the end I want to add other features like Age Sex etc.</p>
  
  <pre><code>max_pool_final = MaxPooling2D(pool_size=(2,2))(conv_final)
  flat = Flatten()(max_pool_final)
  dense = Dense(128)(flat)
  </code></pre>
  
  <p>Before feeding flat as an input to the dense layer, I want to add a few features to flat. How do I do this?</p>
  
  <p>Thanks for help! </p>