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New README and documentation strategy
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Manuel Guenther
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*~ | ||
*.swp | ||
*.pyc | ||
*.so | ||
*.dylib | ||
bin | ||
eggs | ||
parts | ||
.installed.cfg | ||
.mr.developer.cfg | ||
*.egg-info | ||
src | ||
develop-eggs | ||
dist | ||
sphinx | ||
dist | ||
.nfs* | ||
.gdb_history | ||
build | ||
*.egg | ||
src/ |
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.. vim: set fileencoding=utf-8 : | ||
.. Manuel Guenther <manuel.guenther@idiap.ch> | ||
.. Thu Sep 4 11:35:05 CEST 2014 | ||
.. Fri Oct 31 14:18:57 CET 2014 | ||
.. image:: http://img.shields.io/badge/docs-stable-yellow.png | ||
:target: http://pythonhosted.org/bob.db.mnist/index.html | ||
.. image:: http://img.shields.io/badge/docs-latest-orange.png | ||
:target: https://www.idiap.ch/software/bob/docs/latest/bioidiap/bob.db.mnist/master/index.html | ||
.. image:: https://travis-ci.org/bioidiap/bob.db.mnist.svg?branch=master | ||
:target: https://travis-ci.org/bioidiap/bob.db.mnist | ||
.. image:: https://coveralls.io/repos/bioidiap/bob.db.mnist/badge.png | ||
:target: https://coveralls.io/r/bioidiap/bob.db.mnist | ||
.. image:: http://img.shields.io/github/tag/bioidiap/bob.db.mnist.png | ||
:target: https://github.com/bioidiap/bob.db.mnist | ||
.. image:: https://img.shields.io/badge/github-master-0000c0.png | ||
:target: https://github.com/bioidiap/bob.db.mnist/tree/master | ||
.. image:: http://img.shields.io/pypi/v/bob.db.mnist.png | ||
:target: https://pypi.python.org/pypi/bob.db.mnist | ||
.. image:: http://img.shields.io/pypi/dm/bob.db.mnist.png | ||
:target: https://pypi.python.org/pypi/bob.db.mnist | ||
.. image:: https://img.shields.io/badge/original-data--files-a000a0.png | ||
:target: http://yann.lecun.com/exdb/mnist | ||
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================ | ||
MNIST Database | ||
================ | ||
================================== | ||
MNIST Database Interface for Bob | ||
================================== | ||
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The MNIST database is a database of handwritten digits, which consists of a | ||
training set of 60,000 examples, and a test set of 10,000 examples. It was | ||
made available by Yann Le Cun and Corinna Cortes (`MNIST database | ||
<http://yann.lecun.com/exdb/mnist/>`_). The data was originally extracted | ||
from a larger set made available by `NIST <http://www.nist.gov/>`_, before | ||
being size-normalized and centered in a fixed-size image (28x28 pixels). | ||
The MNIST_ database is a database of handwritten digits, which consists of a training set of 60,000 examples, and a test set of 10,000 examples. | ||
It was made available by Yann Le Cun and Corinna Cortes. | ||
The data was originally extracted from a larger set made available by NIST_, before being size-normalized and centered in a fixed-size image (28x28 pixels). | ||
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The actual raw data for the database should be downloaded from the `original | ||
website <http://yann.lecun.com/exdb/mnist/>`_. This package only contains | ||
the `Bob <http://www.idiap.ch/software/bob/>`_ accessor methods to use this | ||
database directly from python. | ||
This package only contains the Bob_ accessor methods to use this database directly from Python. | ||
It does not contain the original raw data files, which need to be obtained through the link above. | ||
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You would normally not install this package unless you are maintaining it. What | ||
you would do instead is to tie it in at the package you need to **use** it. | ||
There are a few ways to achieve this: | ||
Installation | ||
------------ | ||
To install this package -- alone or together with other `Packages of Bob <https://github.com/idiap/bob/wiki/Packages>`_ -- please read the `Installation Instructions <https://github.com/idiap/bob/wiki/Installation>`_. | ||
For Bob_ to be able to work properly, some dependent packages are required to be installed. | ||
Please make sure that you have read the `Dependencies <https://github.com/idiap/bob/wiki/Dependencies>`_ for your operating system. | ||
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1. You can add this package as a requirement at the ``setup.py`` for your own | ||
`satellite package | ||
<https://github.com/idiap/bob/wiki/Virtual-Work-Environments-with-Buildout>`_ | ||
or to your Buildout ``.cfg`` file, if you prefer it that way. With this | ||
method, this package gets automatically downloaded and installed on your | ||
working environment, or | ||
Documentation | ||
------------- | ||
For further documentation on this package, please read the `Stable Version <http://pythonhosted.org/bob.db.mnist/index.html>`_ or the `Latest Version <https://www.idiap.ch/software/bob/docs/latest/bioidiap/bob.db.mnist/master/index.html>`_ of the documentation. | ||
For a list of tutorials on this or the other packages ob Bob_, or information on submitting issues, asking questions and starting discussions, please visit its website. | ||
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2. You can manually download and install this package using commands like | ||
``easy_install`` or ``pip``. | ||
.. _bob: https://www.idiap.ch/software/bob | ||
.. _mnist: http://yann.lecun.com/exdb/mnist | ||
.. _nist: http://www.nist.gov | ||
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The package is available in two different distribution formats: | ||
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1. You can download it from `PyPI <http://pypi.python.org/pypi/bob.db.mnist>`_, or | ||
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2. You can download it in its source form from `its git repository | ||
<https://github.com/bioidiap/bob.db.mnist>`_. | ||
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The database raw files must be installed somewhere in your environment. | ||
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You can mix and match points 1/2 above based on your requirements. Here | ||
are some examples: | ||
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Modify your setup.py and download from PyPI | ||
=========================================== | ||
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That is the easiest. Edit your ``setup.py`` in your satellite package and add | ||
the following entry in the ``install_requires`` section (note: ``...`` means | ||
`whatever extra stuff you may have in-between`, don't put that on your | ||
script):: | ||
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install_requires=[ | ||
... | ||
"bob.db.mnist", | ||
], | ||
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Proceed normally with your ``bootstrap/buildout`` steps and you should be all | ||
set. That means you can now import the namespace ``bob.db.mnist`` into your scripts. | ||
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Modify your buildout.cfg and download from git | ||
============================================== | ||
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You will need to add a dependence to `mr.developer | ||
<http://pypi.python.org/pypi/mr.developer/>`_ to be able to install from our | ||
git repositories. Your ``buildout.cfg`` file should contain the following | ||
lines:: | ||
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[buildout] | ||
... | ||
extensions = mr.developer | ||
auto-checkout = * | ||
eggs = bob | ||
... | ||
bob.db.mnist | ||
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[sources] | ||
bob.db.mnist = git https://github.com/bioidiap/bob.db.mnist.git | ||
... | ||
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How to use this database API | ||
============================ | ||
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After launching the python interpreter (assuming that the environment is properly set up), | ||
you could get the training set as follows:: | ||
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>>> import bob.db.mnist | ||
>>> db = bob.db.mnist.Database('PATH_TO_DATA_FROM_YANN_LECUN_WEBSITE') # 4 binary .gz compressed files | ||
>>> images, labels = db.data(groups='train', labels=[0,1,2,3,4,5,6,7,8,9]) | ||
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In this case, this should return two NumPy arrays: | ||
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1. `images` contain the raw data (60,000 samples of dimension 784 [28x28 pixels images]) | ||
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2. `labels` are the corresponding classes (digits 0 to 9) for each of the 60,000 samples | ||
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If you don't have the data installed on your machine, you can also use the following | ||
set of commands that will: | ||
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1. first look for the database in the bob/db/mnist/ subdirectory and use it if is available | ||
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2. automatically download it from Yann Lecun's website into a temporary folder that will | ||
be erased when the destructor of the bob.db.mnist database is called. | ||
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3. automatically download it into the provided directory that will **not** be deleted. | ||
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:: | ||
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>>> import bob.db.mnist | ||
>>> db = bob.db.mnist.Database() # Check for the data files locally, and download them if required | ||
>>> images, labels = db.data(groups='train', labels=[0,1,2,3,4,5,6,7,8,9]) | ||
>>> del db # delete the temporary downloaded files if any | ||
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or | ||
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:: | ||
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>>> db = bob.db.mnist.Database("Directory") # Persistently downloads files into the folder "Directory" | ||
>>> images, labels = db.data(groups='train', labels=[0,1,2,3,4,5,6,7,8,9]) | ||
>>> del db # The download directory stays | ||
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