MotionCam

MotionCam analyzes pixels in center of live preview in order to detect repeatable action like rotation or stroboscopic light. After that, it puts final data in chart which can be viewed and analyzed by the user.
Chart represent power of detected signal (y axis) and frequency (actions per second). Pitches in the chart represent detected frequencies.

This project is opensource, find the code on GitHub
https://github.com/PDymala/MotionCam

Additional features:
- Apply color filters (red, green, blue, gray)
- Double tap on screen to zoom
- Settings to play around with number of frames to analyze (analysis precision), and cleaning the chart (% of max value not to push to chart)
- Start / stop of preview and chart
- Flashlight
- Interactive chart

Have in mind that the app can only detect motion which is in range of 0 up to 1/2 maximum camera fps.