qnowp

と言っても、さすがMacなので、brew で一発OK。

$ brew install opencv

こんだけ。

ただしこのままだと、ライブラリにパスが通っていないため、import 時にエラーになります。
ということでPython配下にライブラリをコピーします。

$ cp /usr/local/Cellar/opencv/2.3.1a/lib/python2.6/site-packages/cv2.so /Library/Python/2.6/site-packages/.

せっかくなのでラプラシアンフィルタをかけてみました。

こんな感じ。
ちなみに動かしたソースは以下。

#! /usr/bin python
# -*- coding: utf-8 -*-

import sys
import getopt
import os
from cv2 import cv

def main(argv):

    org_path = './test.jpg'
    dst_path = './out.jpg'

    org_image = cv.LoadImage(org_path)
    org_width = org_image.width
    org_heght = org_image.height
    org_channels = org_image.channels

    new_image = cv.CreateImage((org_width, org_heght),
                               cv.IPL_DEPTH_16S, org_channels)
    cv.Laplace(org_image, new_image)
    cv.SaveImage(dst_path, new_image)

    return

if __name__ == "__main__":
    main(sys.argv)

インストール時のログを念のため貼り付けておきます。Errorがチラッと見えたけど、気にしないw

$ brew list opencv
/usr/local/Library/Homebrew/global.rb:43: warning: Insecure world writable dir /usr/local in PATH, mode 040777
/usr/local/bin/brew:73: warning: Insecure world writable dir /usr/local in PATH, mode 040777
Error: No such keg: /usr/local/Cellar/opencv
$
$
$ brew install opencv
/usr/local/Library/Homebrew/global.rb:43: warning: Insecure world writable dir /usr/local in PATH, mode 040777
/usr/local/bin/brew:73: warning: Insecure world writable dir /usr/local in PATH, mode 040777
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
==> Installing opencv dependency: cmake
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://www.cmake.org/files/v2.8/cmake-2.8.6.tar.gz
######################################################################## 100.0%
==> ./bootstrap --prefix=/usr/local/Cellar/cmake/2.8.6 --system-libs --no-system
==> make
==> make install
Warning: m4 macros were installed to "share/aclocal".
Homebrew does not append "/usr/local/share/aclocal"
to "/usr/share/aclocal/dirlist". If an autoconf script you use
requires these m4 macros, you'll need to add this path manually.
==> Summary
/usr/local/Cellar/cmake/2.8.6: 628 files, 29M, built in 8.0 minutes
==> Installing opencv dependency: pkg-config
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://pkg-config.freedesktop.org/releases/pkg-config-0.25.tar.g
######################################################################## 100.0%
==> ./configure --disable-debug --prefix=/usr/local/Cellar/pkg-config/0.25 --wit
==> make install
Warning: m4 macros were installed to "share/aclocal".
Homebrew does not append "/usr/local/share/aclocal"
to "/usr/share/aclocal/dirlist". If an autoconf script you use
requires these m4 macros, you'll need to add this path manually.
==> Summary
/usr/local/Cellar/pkg-config/0.25: 8 files, 248K, built in 42 seconds
==> Installing opencv dependency: libtiff
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://download.osgeo.org/libtiff/tiff-3.9.5.zip
######################################################################## 100.0%
==> ./configure --prefix=/usr/local/Cellar/libtiff/3.9.5 --mandir=/usr/local/Cel
==> make install
/usr/local/Cellar/libtiff/3.9.5: 235 files, 3.5M, built in 50 seconds
==> Installing opencv dependency: jpeg
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://www.ijg.org/files/jpegsrc.v8c.tar.gz
######################################################################## 100.0%
==> ./configure --prefix=/usr/local/Cellar/jpeg/8c
==> make install
/usr/local/Cellar/jpeg/8c: 17 files, 1.6M, built in 41 seconds
==> Installing opencv dependency: jasper
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://slackware.sukkology.net/packages/jasper/jasper-1.900.1.zi
######################################################################## 100.0%
==> Patching
patching file src/libjasper/jpc/jpc_dec.c
==> ./configure --disable-debug --enable-shared --prefix=/usr/local/Cellar/jaspe
==> make install
/usr/local/Cellar/jasper/1.900.1: 33 files, 1.2M, built in 49 seconds
==> Installing opencv dependency: tbb
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://threadingbuildingblocks.org/uploads/77/177/4.0%20update%2
######################################################################## 100.0%
==> make tbb_build_prefix=BUILDPREFIX CONLY=/usr/bin/gcc-4.2 CPLUS=/usr/bin/g++-
/usr/local/Cellar/tbb/4.0u1: 85 files, 1.4M, built in 29 seconds
==> Installing opencv
/usr/local/Library/Homebrew/build.rb:7: warning: Insecure world writable dir /usr/local in PATH, mode 040777
==> Downloading http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/
######################################################################## 100.0%
==> Patching
patching file modules/highgui/src/grfmt_exr.hpp
==> cmake . -DCMAKE_INSTALL_PREFIX='/usr/local/Cellar/opencv/2.3.1a' -DCMAKE_BUI
==> make
==> make install
==> Caveats
The OpenCV Python module will not work until you edit your PYTHONPATH like so:
  export PYTHONPATH="/usr/local/lib/python2.6/site-packages:$PYTHONPATH"

To make this permanent, put it in your shell's profile (e.g. ~/.profile).
==> Summary
/usr/local/Cellar/opencv/2.3.1a: 147 files, 43M, built in 9.5 minutes
$