Having trouble with save_to_dir in Keras ImageDataGenerator flow method
<p>I want to save the augmented images my ImageDataGenerator is creating so that I can use them later. When I execute the following code, it runs fine, but the images I was hoping to save do not show up in the directory I am trying to save them in.</p>

<pre><code>gen = image.ImageDataGenerator(rotation_range=17, width_shift_range=0.12,
                     height_shift_range=0.12, zoom_range=0.12, horizontal_flip=True, dim_ordering='th')

batches = gen.flow_from_directory(path+'train', target_size=(224,224),
        class_mode='categorical', shuffle=False, batch_size=batch_size, save_to_dir=path+'augmented', save_prefix='hi')
</code></pre>

<p>I feel like I must not be using this feature correctly. Any idea what I'm doing wrong?</p>