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Write the usage example

I believe that this package is really great but I really don't have any idea how to use it. Reading the code does not help either because there is no def deblur(img) and besides there is no docs about what format img must have. Please write the docs.

[PATCH] fatal error: numpy/arrayobject.h: No such file or director

% python setup.py build_ext                                                                                                                                                                                                                                                                                         running build_ext
skipping 'pydeconv/utils.c' Cython extension (up-to-date)
building 'pydeconv.utils' extension
C compiler: x86_64-pc-linux-gnu-gcc -pthread -fPIC

compile options: '-I/usr/include/python2.7 -c'
x86_64-pc-linux-gnu-gcc: pydeconv/utils.c
pydeconv/utils.c:275:31: fatal error: numpy/arrayobject.h: No such file or directory
compilation terminated.
pydeconv/utils.c:275:31: fatal error: numpy/arrayobject.h: No such file or directory
compilation terminated.
error: Command "x86_64-pc-linux-gnu-gcc -pthread -fPIC -I/usr/include/python2.7 -c pydeconv/utils.c -o build/temp.linux-x86_64-2.7/pydeconv/utils.o" failed with exit status 1

The following patch fixes the issue:

diff --git a/setup.py b/setup.py
index 2a4cb41..ca53743 100644
--- a/setup.py
+++ b/setup.py
@@ -3,9 +3,11 @@
 from distutils.core import setup
 from distutils.extension import Extension
 from Cython.Distutils import build_ext
+from numpy.distutils.misc_util import get_numpy_include_dirs

 ext_modules = [
     Extension("pydeconv.utils", ["pydeconv/utils.pyx"],
+    include_dirs=get_numpy_include_dirs(),
     ),
 ]

HTH