HDR with AVFoundation

Question

I'm like to get both a real-time and post-processed HDR effect with AVFoundation and/or CoreImage. I'm assuming this is relatively easy with CoreImage once a full-frame still image is captured, but does anybody know how to achieve an HDR-like effect using AVCaptureVideoPreviewLayer?

Answer 1

You can use AVCaptureVideoOutput class and above mentioned delegate method (captureOutput:didOutputSampleBuffer:fromConnection:) to get each live frame from camera. From that frame, you can create CIImage and make changes using CoreImage framework; After that just draw output using drawRect: method