Deep Dream

Deep Dream modified implementation in Keras 1.0.6 using script provided at Deep Dream in Keras Examples

Examples

Weights (VGG 16)

Before running this script, download the weights for the VGG16 model at: https://drive.google.com/file/d/0Bz7KyqmuGsilT0J5dmRCM0ROVHc/view?usp=sharing (source: https://gist.github.com/baraldilorenzo/07d7802847aaad0a35d3) and make sure the variable weights_path in this script matches the location of the file.

• Save the weights in the root folder
• Save a copy of the weights in the root of the windows_helper folder (if you wish to use the Windows Helper tool to easily execute the script)

Windows Helper

It is a C# program written to more easily generate the arguments for the python script Network.py

• Make sure to save the vgg16_weights.h5 weights file in the windows_helper folder.
• Upon first run, it will request the python path. Traverse your directory to locate the python.exe of your choice (Anaconda is tested)

Benefits

• Automatically executes the script based on the arguments.
• Easy selection of images (Content, Output Prefix)
• Easy parameter selection
• Easily generate argument list, if command line execution is preferred.

Parameters

--setting : Setting can be one of "bad_trip", "dreamy" or "custom". 
--iter : Number of iterations. Default is 5. Test the output with 5 iterations, and increase to improve results.

# The below are used only if setting="custom"
--continuity : If setting is custom, allows to select continuity factor
--dream_l2 : If setting is custom, allows to select dream_l2 factor
--jitter : If setting is custom, allows to select jitter factor

Requirements

• Theano
• Keras
• CUDA (GPU)
• CUDNN (GPU)
• Scipy
• Numpy

Speed

On a 980M GPU, the time required for each epoch depends on mainly image size (gram matrix size) :

At 600 x 600, each epoch requires 3 seconds.