Do silhouettes dream?
Code for reproducing our interactive art installation "Do silhouettes dream?".
MacOS Sierra tested recipe:
- follow the instructions here to install Python and OpenCV properly via homebrew
- install the kinect drivers following these instructions
- install the primesense package
Running the demo
In general, to run the demo you need to first connect the kinect to your laptop and then run the main script:
While having the python window selected, you can exit the demo at any time by pressing the ESC key.
Before running the demo for the first time, you will need to specify the input and output parameters and perhaps adjust the min-max depth values for each specific location.
Download sample input tensor
A sample tensor of a deep dream starting from a black image can be downloaded directly from here. The file should be placed in the tensors/ folder for the main script to work without changes.
Better, one may use the download script provided:
cd tensors && sh download_sample_tensor.sh
Adjusting input and output parameters
Open silhouettes.py with your favorite editor and adjust the following (self-explanatory) parameters:
# input/output parameters # input tensor input_fn = 'tensors/black.pkl' # output window size FINAL_OUTPUT_WIDTH = 1440 FINAL_OUTPUT_HEIGHT = 900
Adjusting min/max depth and debuging kinect input
You may wat to adjust the min-max depth values for each specific location you run the demo. These parameters would be very different if eg you want to run this in a big warehouse vs your cluttered bedroom. In general the depth values for kinect v2 are between 500 and 4500.
To debug depth, first turn set parameter:
show_depth = True
This will only display the depth map (the input from the kinect). Then, while having the python window selected/in focus, you can change the min/max depth values using some keyboard shortcuts:
- keys "a" and "z" control the minimun depth cliping
- keys "s" and "x" control the maximum depth cliping There are debug messages shown on the terminal, to let you pick the proper values that work for your space. After you decide, you set the following two variables to the selected depths. Eg parameters:
MIN_DEPTH = 500.0 MAX_DEPTH = 2000.0
will clip faraway objects and work better for smaller spaces.
Don't forget to turn the debug depth parameter off to start running the demo:
show_depth = False
Creating your own input tensors
We provide a modified version of the tensorflow deepdream script that outputs gifs and the proper numpy input tensor needed by the main script. See folder:
Day-to-night timelapse videos are ideal for this. We provide an iPython Notebook script that gets a video and creates the proper tensor needed from the main script:
it requires the youtube_dl package that you can install with:
sudo pip install --upgrade youtube_dl