1 | import { UnavailabilityError } from '@unimodules/core';
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2 |
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3 | import ExpoFaceDetector from './ExpoFaceDetector';
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4 |
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5 | type Point = { x: number; y: number };
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6 |
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7 | export type FaceFeature = {
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8 | bounds: {
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9 | size: {
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10 | width: number;
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11 | height: number;
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12 | };
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13 | origin: Point;
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14 | };
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15 | smilingProbability?: number;
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16 | leftEarPosition?: Point;
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17 | rightEarPosition?: Point;
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18 | leftEyePosition?: Point;
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19 | leftEyeOpenProbability?: number;
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20 | rightEyePosition?: Point;
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21 | rightEyeOpenProbability?: number;
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22 | leftCheekPosition?: Point;
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23 | rightCheekPosition?: Point;
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24 | leftMouthPosition?: Point;
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25 | mouthPosition?: Point;
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26 | rightMouthPosition?: Point;
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27 | bottomMouthPosition?: Point;
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28 | noseBasePosition?: Point;
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29 | yawAngle?: number;
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30 | rollAngle?: number;
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31 | faceID?: number;
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32 | };
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33 |
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34 | type ValuesOf<T extends any[]> = T[number];
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35 |
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36 | export type FaceDetectorMode = string[];
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37 |
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38 | export type FaceDetectorLandmarks = ValuesOf<typeof ExpoFaceDetector.Landmarks>;
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39 |
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40 | export type FaceDetectorClassifications = ValuesOf<typeof ExpoFaceDetector.Classifications>;
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41 |
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42 | export interface Image {
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43 | uri: string;
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44 | width: number;
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45 | height: number;
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46 | orientation: number;
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47 | }
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48 |
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49 | export type DetectionOptions = {
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50 | mode?: FaceDetectorMode;
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51 | detectLandmarks?: FaceDetectorLandmarks;
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52 | runClassifications?: FaceDetectorClassifications;
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53 | };
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54 |
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55 | export async function detectFacesAsync(
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56 | uri: string,
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57 | options: DetectionOptions = {}
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58 | ): Promise<{ faces: FaceFeature[]; image: Image }> {
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59 | if (!ExpoFaceDetector.detectFaces) {
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60 | throw new UnavailabilityError('expo-face-detector', 'detectFaces');
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61 | }
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62 | return await ExpoFaceDetector.detectFaces({ ...options, uri });
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63 | }
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64 |
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65 | export const Constants = {
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66 | Mode: ExpoFaceDetector.Mode,
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67 | Landmarks: ExpoFaceDetector.Landmarks,
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68 | Classifications: ExpoFaceDetector.Classifications,
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69 | };
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