react-native-object-detection/src/index.ts

A React Native library for object detection using MLKit

import { NativeModules } from 'react-native';

const { ObjectDetectionModule } = NativeModules;

export interface DetectedObject {
  frame: {
    left: number;
    top: number;
    right: number;
    bottom: number;
  };
  trackingID: number | null;
  labels: Array<{
    text: string;
    confidence: number;
  }>;
}

/**
 * Starts object detection on the provided image
 * @param imagePath - The path to the image file (can be local or remote URL)
 * @returns Promise that resolves with an array of detected objects
 * @throws Error if image loading or detection fails
 */
export const startObjectDetection = (imagePath: string): Promise<DetectedObject[]> => {
  return new Promise((resolve, reject) => {
    ObjectDetectionModule.startObjectDetection(imagePath)
      .then((objects: DetectedObject[]) => resolve(objects))
      .catch((error: Error) => reject(error));
  });
};