def convert_images_from_uint8(images, drange=[-1,1], nhwc_to_nchw=False):
    """Convert a minibatch of images from uint8 to float32 with configurable dynamic range.
    Can be used as an input transformation for Network.run().
    """
    images = tf.cast(images, tf.float32)
    if nhwc_to_nchw:
        images = tf.transpose(images, [0, 3, 1, 2])
    return images * ((drange[1] - drange[0]) / 255) + drange[0]
Convert a minibatch of images from uint8 to float32 with configurable dynamic range.
    Can be used as an input transformation for Network.run().
    
converters/stylegan2ada_tf_official/dnnlib/tflib/tfutil.py