I want to install OpenCV 2.4.9 on Mac OS 10.5.8 with Intel Core Duo processor(32 bit) and only for C++(no Python required). Please help. I want the latest version of OpenCV because I want to use traincascade function provided in OpenCV which seems to have been upgraded in the latest version of OpenCV.
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I think easiest way is using homebrew
. It is a package manager for OS X. You can install it from here.
After installing brew, you can easily install OpenCV just by running following command from console:
brew install opencv
EDIT
Requirements for homebrew

guneykayim
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Which version of OpenCV gets installed? I am also not able to download homebrew using the command given on that page. – user3626948 Jun 11 '14 at 07:25
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It automatically installs the latest one, 2.4.9, or if you want you can install another version. – guneykayim Jun 11 '14 at 08:16
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Thanks a lot for your answer. I installed using MacPorts. – user3626948 Jun 12 '14 at 06:36