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Example of Rendering Bounding Box Around Detected Bar Code · Issue #121 · react-native-camera/react-native-camera · GitHub
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Using VisionCamera's upcoming "write-back Frame Processor API" you can draw onto a Frame in realtime using RN Skia - this is a JS function that just applies a simple VHS filter (13
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React Native: Camera from "expo-camera" stop running when face is not ever detected - Stack Overflow
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