cyvlfeat
A Python (cython) wrapper of the VLFeat library
We intend for this to be a light wrapper around the VLFeat
toolbox. cyvlfeat will provide a mixture of pure Python and Cython code
that looks to replicate the existing Matlab toolbox. Cython is intended
to fulfill the role of mex
files.
We respect the original BSD 2-clause license and thus release this wrapper under the same license.
We thank the authors of VLFeat for their contribution to the computer vision community.
At the moment, the following methods from vlfeat are exposed:
fisher
fisher
generic
set_simd_enabled, get_simd_enabled, cpu_has_avx, cpu_has_sse3, cpu_has_sse2
get_num_cpus,
get_max_threads, set_num_threads, get_thread_limit
hog
hog
kmeans
kmeans
kmeans_quantize
ikmeans, ikmeans_push
hikmeans, hikmeans_push
sift
dsift
sift
To install cyvlfeat, we strongly suggest you use conda:
conda install -c menpo cyvlfeat
If you don't want to use conda, your mileage will vary. In
particular, you must satisfy the linking/compilation requirements for
the package, which include the vlfeat
dynamic library.
To develop cyvlfeat (to extend its functionality), you will need to
be comfortable using Cython. To begin re-implementing Matlab's mex
methods in Cython, you will to install the following requirements:
cython >=0.22
numpy >= 1.9
vlfeat >= 0.9.20
To make this easier, we suggest you use conda. This makes installing the dependencies much simpler.
This library dynamically links against the vlfeat
,
and therefore you will need to ensure that it is available to the
Python setup environment at build time. As mentioned, this is mostly
easily done using conda:
conda config --add channels menpo conda install cyvlfeat conda remove cyvlfeat
This will install all of cyvlfeat's dependencies, including vlfeat
, numpy
and cython
. You will likely want to install this into a new conda environment for cyvlfeat development. Please see the conda documentation for an explanation about environments.
To begin developing, you will need to git fork and clone this repository:
Fork using the Github fork button
Clone your repo: git clone git@github.com:YOUR_GITHUB_USERNAME/cyvlfeat.git
Add this repo as upstream: git remote add upstream git@github.com:menpo/cyvlfeat.git
You can now locally install a development version/build cyvlfeat by using:
CFLAGS="-I/PATH_TO_MINICONDA/miniconda/envs/CONDA_ENV_NAME/include" LDFLAGS="-I/PATH_TO_MINICONDA/miniconda/envs/CONDA_ENV_NAME/lib" pip install -e ./
This will build and install a local version of cyvlfeat for your development. You can also build and test this by using conda itself (from inside the cyvlfeat git repository):
conda install conda-build CONDACI_VERSION=VERSION_HERE conda build ./conda
You need to fill in the version number, as this is normally supplied by the continuous integration systems (CI). Usually, you want to use a number that is tagged to the git repository. For example, in bash you could use the command:
CONDACI_VERSION=`git describe --tags` conda build ./conda
For Windows, you will need to set the variable before building:
set CONDACI_VERSION=VERSION_HERE conda build ./conda
To run the tests manually, ensure nose
is installed (conda install nose
), and run
nosetests -v .
From inside the git repository.
To add a new feature, please start a pull request. This will also kick off the automated building systems for both Linux and Windows. I will oversee any new additions, and providing they pass on both automated build systems, will merge the new functionality in.
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