Step #1: Install Xcodeīefore we can even think about compiling OpenCV, we first need to install Xcode, a full blown set of software development tools for the Mac Operating System. If you are using an older version of the Mac Operating System (Mavericks, Yosemite, etc.), please refer to my previous tutorials. If you are running macOS Sierra or greater, you can use this tutorial to help you install OpenCV 3 with Python 2.7 bindings. My machine is currently running macOS Sierra (10.12). To check your Mac OS version click the Apple icon at the very top-left corner of your screen in the menu then select “About this Mac”.Ī window should then pop up, similar to the one below: Figure 1: Checking your OS version on Mac. How do I check my Mac Operating System version? Once OpenCV 3.2 is released I’m sure the QKit to AVFoundation migration will be included, but until then, if you want to install OpenCV 3 on your macOS system running Sierra or later, you’ll need to avoid using tagged releases and instead compile and install the development version of OpenCV 3. The trick is that we need to use the HEAD of the repo as opposed to a tagged release. That said, I’m happy to report that by using the latest commit to OpenCV’s GitHub we can install OpenCV on macOS Sierra and greater. That said, the latest commits to the OpenCV GitHub repo do address this issue however, a new tagged release of v3.2 has yet to be released. Error 2 make: ***Įven more problematic, both the tagged releases of OpenCV v3.0 and v3.1 do not include fixes to this issue. Thus, if you tried to compile OpenCV on your Mac using my previous tutorials your compile likely bombed out and you ended up with an error message similar to this: fatal error: This created a big problem when compiling OpenCV on Mac systems - the QTKit headers were not found on the system and were expected to exist. AVFoundation is the new framework for working with audiovisual media in iOS and macOS. However, it wasn’t until the release of macOS Sierra that much of QTKit was removed and instead replaced with AVFoundation, the successor to QTKit. In OSX version 10.9 (Mavericks) QTKit was deprecated ( source). Python for mac os free mac osx#In the Mac OSX environment the QTKit (QuickTime Kit) Objective-C framework is used for manipulating, reading, and writing media. Avoiding the QTKit/QTKit.h file not found error Python for mac os free how to#In particular, I explain a common error you may have run across - the QTKit.h header issue from the now deprecated QTKit library.įrom there, I provide super detailed instructions on how to install OpenCV 3 + Python 2.7 your macOS Sierra system or greater. The first part of this blog post details why I am creating a new tutorial for installing OpenCV 3 with Python bindings on the Mac Operating System. To learn how to install OpenCV with Python 2.7 bindings on your macOS system, keep reading. I decided to break these tutorials into two separate blog posts because they are quite lengthy.įurthermore, tuning your CMake command to get it exactly right can be a bit of a challenge, especially if you’re new to compiling from OpenCV from source, so I wanted to take the time to devise a foolproof method to help readers get OpenCV installed on macOS.
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