import * as tf from '@tensorflow/tfjs-core';
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import { Rect } from '../classes';
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import { FaceDetection } from '../classes/FaceDetection';
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/**
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* Extracts the tensors of the image regions containing the detected faces.
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* Useful if you want to compute the face descriptors for the face images.
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* Using this method is faster then extracting a canvas for each face and
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* converting them to tensors individually.
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*
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* @param imageTensor The image tensor that face detection has been performed on.
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* @param detections The face detection results or face bounding boxes for that image.
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* @returns Tensors of the corresponding image region for each detected face.
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*/
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export declare function extractFaceTensors(imageTensor: tf.Tensor3D | tf.Tensor4D, detections: Array<FaceDetection | Rect>): Promise<tf.Tensor3D[]>;
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