opencv cmake文件，如何在iOS中使用它们

Question

These stuff stuck me another 3 days to figure out.

I'm implementing opencv and I need to use xfeatures2d module in objc xcode . I previously downloaded the opencv.framework and successfully imported it in my iOS project and it works. But there is no xfeatures2d in it. So then I finally figured out that it is an extra module and it is in a package call opencv_contrib .

To make use of it, it seems like people recommend to use cmake to build the source code of opencv-master with opencv-contrib-master

I did it, and it looks build correctly. And I got lots of funky things in my folder. However, it seems like nothing I can use to #import to my .xcodeproj project. (Sorry I can't embed my screenshot yet.)

So did I do something wrong? Or,is it the correct way to build the file I need??

Please help, Thanks!

Answer 1

Finally I found a solution. @thachnb 's solution is referred from here . This instruction guide you to generate an opencv2.framework in use of your iOS project from the opencv-master package. If you want to use the modules in opencv_contrib, you need to physically copy the module from opencv_contrib (in my case is xfeatures2d, or you can just copy everything over), to opencv-master/module , and then use

python opencv/platforms/ios/build_framework.py ios

command to compile it. After this compilation, you will have a opencv2.framework containing everything you need. This also helps.

Thanks @thachnb !

Answer 2

Q1. Did you run below command?

python opencv/platforms/ios/build_framework.py ios

if yes, move to question 2

Q2. Did you see opencv.framework in ios subfolder?

if yes, move to question 3

Q3. Did you add that opencv.framework folder to your xcode project? or drag and drop it to Framework folder of your xcode project?