xbob.optflow.liu 1.0.0

Installation

You can just add a dependence for xbob.optflow.liu on your setup.py to automatically download and have this package available at your satellite package. This works well if Bob is installed centrally at your machine.

Otherwise, you will need to tell buildout how to build the package locally and how to find Bob. For that, just add a custom egg recipe to your buildout that will fetch the package and compile it locally, setting the environment variable PKG_CONFIG_PATH to where Bob is installed. For example:

[buildout]
parts = xbob.optflow.liu <other parts here...>
...

[env]
PKG_CONFIG_PATH = /Users/andre/work/bob/build/install/lib/pkgconfig

...

[xbob.optflow.liu]
recipe = zc.recipe.egg:custom
environment = env

...

Development

To develop these bindings, you will need the open-source library Bob installed somewhere. At least version 1.1.0 of Bob is required. If you have compiled Bob yourself and installed it on a non-standard location, you will need to note down the path leading to the root of that installation.

Just type:

$ python bootstrap.py
$ ./bin/buildout

If Bob is installed in a non-standard location, edit the file buildout.cfg to set the root to Bob’s local installation path. Remember to use the same python interpreter that was used to compile Bob, then execute the same steps as above.

Usage

Pretty simple, just do something like:

import bob
from xbob.optflow.liu import flow
...
(u, v, warped) = flow(image1, image2)

The flow method accepts more parameters. Please refer to its built-in documentation for details.