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June 6, 2021 12:10
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import '@tensorflow/tfjs-node'; | |
import * as canvas from 'canvas'; | |
import * as faceapi from 'face-api.js'; | |
import path from 'path'; | |
const { Canvas, Image, ImageData } = canvas; | |
faceapi.env.monkeyPatch({ Canvas: Canvas as any, Image: Image as any, ImageData }); | |
class GlassifyLib { | |
async glassify(imageBuffer: Buffer): Promise<Buffer> { | |
await this.loadModels(); | |
const image = await canvas.loadImage(imageBuffer) as unknown as HTMLImageElement; | |
const faces = await faceapi.detectAllFaces( | |
image, | |
new faceapi.SsdMobilenetv1Options({ minConfidence: 0.5 }), | |
).withFaceLandmarks(); | |
const output = faceapi.createCanvasFromMedia(image); | |
faceapi.draw.drawDetections(output, faces.map(res => res.detection)); | |
faceapi.draw.drawFaceLandmarks(output, faces.map(res => res.landmarks)); | |
return (output as any).toBuffer('image/jpeg'); | |
} | |
private async loadModels() { | |
if (faceapi.nets.ssdMobilenetv1.isLoaded && faceapi.nets.faceLandmark68Net.isLoaded) { | |
return; | |
} | |
const modelsPath = path.join(__dirname, '../', 'public/weights'); | |
await faceapi.nets.ssdMobilenetv1.loadFromDisk(modelsPath); | |
await faceapi.nets.faceLandmark68Net.loadFromDisk(modelsPath); | |
} | |
} | |
export default new GlassifyLib(); |
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