iOS — Camera Frames Extraction
Boris Ohayon
35813

Thanks so much for this amazingly helpful tutorial! I got the camera and image conversions working beautifully, but I was wondering if you could help with an issue integrating OpenCV in Swift. (I set up OpenCV in Swift according to your earlier tutorial.)

For each frame, I want to run face detection and emotion recognition. However, when I try to load the Fisher face classifier, I get this error:

OpenCV Error: Unspecified error (File can’t be opened for reading!) in load, file ~/opencv/modules/face/src/facerec.cpp, line 61

libc++abi.dylib: terminating with uncaught exception of type cv::Exception: ~/opencv/modules/face/src/facerec.cpp:61: error: (-2) File can’t be opened for reading! in function load

First of all, I don’t know why it’s referring to a module outside my project directory. I have copied opencv2.framework into my Xcode project.

Second of all, I don’t know why it can’t open my saved model (it’s saved as “fishface_ckplus.xml”). I copied the .xml file into my Xcode project, as well.

Any thoughts on why I can’t load the model? Any help would be greatly appreciated!

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.