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Asked: 2026-05-18T22:05:44+00:00

I want to do some image processing work like face detection or something during

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I want to do some image processing work like face detection or something
during the camera is under recording video mode .

now I can recording video and save file and transfer it to my server.
but if I want to detect human face during recording,(I don’t need any algorithm , I’ll take it)
how can I do this? use what kind of library ?
I think I should use some method to get each frame of the recording video. but how ?

now, I use “MediaRecorder” to capture the video .
SurfaceView , SurfaceHolder : to show the preview screen

is anyone can give me some suggestions ?
thank you very much in advance ^^

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1 Answer

  1. Editorial Team

    You need to provide a PreviewCallback when you set your Camera object. More info here.

    That listener will give you a pixel buffer of the preview frame from time to time, which you can use to perform your face detect Algorithm.

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