react-native-executorch/lib/module/modules/computer_vision/ObjectDetectionModule.js

An easy way to run AI models in React Native with ExecuTorch

"use strict";

import { ResourceFetcher } from '../../utils/ResourceFetcher';
import { ETError, getError } from '../../Error';
import { BaseModule } from '../BaseModule';
export class ObjectDetectionModule extends BaseModule {
  async load(model, onDownloadProgressCallback = () => {}) {
    const paths = await ResourceFetcher.fetch(onDownloadProgressCallback, model.modelSource);
    if (paths === null || paths.length < 1) {
      throw new Error('Download interrupted.');
    }
    this.nativeModule = global.loadObjectDetection(paths[0] || '');
  }
  async forward(imageSource, detectionThreshold = 0.7) {
    if (this.nativeModule == null) throw new Error(getError(ETError.ModuleNotLoaded));
    return await this.nativeModule.generate(imageSource, detectionThreshold);
  }
}
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