App for Style Transfer

This app was built using the C++ UI framework which was designed for the course project of Advanced Engineering Computation (24-783). The UI framework was in turn built on top of an OpenGL cross-platform window framework FsSimpleWindow created at Carnegie Mellon University by Prof. Soji Yamakawa . The UI framework follows the following hierarchy.

Tensorflow implementation of style transfer using adaptive instance normalisation was used as the backend for transferring style. The app outputs an image inside the ui after transferring a style of an image onto a content image.

Recommended Requirement

• Linux environment

The program has been tested on linux (Ubuntu-16.04) and was designed to be cross platform (Windows and MacOS), it can be ported by replacing file reading capabilities of dirent.h which is included in libraries and the functions called in bmplocations

Other Requirements

• Python 3.5 environment, required libraries are present in requirements.txt (tensorflow model would be used to transfer style onto image)
• cmake and make capabilities (if you wish to build the app from source)

Running the App

• Run setup_script.sh to download the data files (training checkpoint and vgg weights).
• Activate the python environment (in the terminal) after installing all the libraries listed in requirements.txt
• Run the Style transfer executable.

Using the app:

• Use left and right arrow keys to change the style image and up and down arrow keys to change the content image.
• The output image would be updated automatically, if the background is white then press Go! to transfer the style onto the content image. The tensorflow model would only be initialised if the output image is not already present and you press Go!.
• More style and content images can be added in the images directory. You can force the app to rebuild that hash that stores the location of all images by pressing the Update button.
• If you wish to transfer style of all style images onto all content images, press All In!.

Building the app from source:

• Make a build directory inside the current project. Inside the build directory, run cmake for the source files in src directory.
• Run make, the exectuable would be created at ./dist/StyleTransferApp (here).

User Interface