Get the master branch of Caffe to compile on your machine. If you've never used Caffe before, it can take a bit of time to get all the required libraries in place. Fortunately, the installation process is well documented. When you're installing OpenCV, install the Python bindings as well (see Step 2 below).
Note: You can set CPU_ONLY := 1 in your Makefile.config to skip all the Cuda/GPU stuff. The Deep Visualization Toolbox can run with Caffe in either CPU or GPU mode.
Instead of using the master branch of caffe, to use the demo you'll need a slightly modified branch (supporting deconv and a few extra Python bindings). Getting the branch and switching to it is easy. Starting from your caffe directory, run:
$ git remote add yosinski https://github.com/yosinski/caffe.git
$ git fetch --all
$ git checkout --track -b deconv-deep-vis-toolbox yosinski/deconv-deep-vis-toolbox
$ make clean
$ make -j
$ make -j pycaffe
As noted above, feel free to compile in CPU_ONLY mode if desired.
You may have already installed the python-opencv bindings as part of the Caffe setup process. If import cv2 works from Python, then you're all set. If not, install the bindings like this:
Linux:
$ sudo apt-get install python-opencv
Mac using homebrew (if desired, add option --with-tbb to enable parallel code using Intel TBB):
$ brew install opencv
Other install options on Mac may also work well.
You can put it wherever you like:
$ git clone https://github.com/yosinski/deep-visualization-toolbox
$ cd deep_visualization_toolbox
Copy settings.py.template to settings.py and edit it so the caffevis_caffe_root variable points to the directory where you've compiled caffe in Step 1:
$ cp settings.py.template settings.py
$ < edit settings.py >
Download the example model weights and corresponding top-9 visualizations saved as jpg (downloads a 230MB model and 1.1GB of jpgs to show as visualization):
$ cd models/caffenet-yos/
$ ./fetch.sh
Simple:
$ ./run_toolbox.py
Once the toolbox is running, push 'h' to show a help screen. You can also have a look at bindings.py to see what the various keys do. If the window is too large or too small for your screen, set the global_scale variable in settings.py to a value smaller or larger than one.
If you have any problems running the Deep Vis Toolbox, here are a few things to try:
- Try using the
devbranch instead (git checkout dev). Sometimes it's a little more up to date than the master branch. - If you get an error (
AttributeError: 'Classifier' object has no attribute 'backward_from_layer') when switching to backprop or deconv modes, it's because your compiled branch of Caffe does not have the necessary Python bindings for backprop/deconv. Follow the directions in "Step 1: Compile the deconv-deep-vis-toolbox branch of caffe" above. - If the backprop pane in the lower left is just gray, it's probably because backprop and deconv are producing all zeros. By default, Caffe won't compute derivatives at the data layer, because they're not needed to update parameters. The fix is simple: just add "force_backward: true" to your network prototxt, like this.
- If none of that helps, feel free to email me or submit an issue. I might have left out an important detail here or there :).