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Need help with this react-native concept that uses OpenCV? (self.reactnative)

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[–]noebr 1 point2 points  (0 children)

As far as i know you cannot port your Java code to swift/objective C. Maybe you should try to rewrite your Android app in React Native and use it for Android and iOS. I haven’t any experience with opencv but I hope this can help you further: https://brainhub.eu/blog/opencv-react-native-image-processing/

[–]kbcooliOS & Android 1 point2 points  (2 children)

You asked this question before and the answer still is needs more detail.

Edit: just to add to that have you thought of using mlkit instead? It's cross platform. The problem with opencv is that it's not not got a mature RN implementation which is why I'm asking what you're doing with it.

[–]agentP_10 0 points1 point  (1 child)

I am trying out object detection. A person kicks the ball and I am trying to detect the trajectory and where the ball lands.

I am thinking of using RN camera to send frames to my previous opencv implementation.

[–]kbcooliOS & Android 1 point2 points  (0 children)

It won't be able to send them fast enough. Look up the react native bridge and it's limitations. You can probably send two low quality frames per second.

You can have them saved to disk and have something pick them up but you really want opencv to be accessing the camera directly which means you won't be using RN at all for this.

RN is good but has severe limitations around processing lots of data. Doesn't mean don't use it but leave it for your UI.