如何在angular 6中获取图像输入流

npm install ngx-webcam --save

import { WebcamModule, WebcamImage } from 'ngx-webcam';

@NgModule({
  imports: [
    // other imports
    WebcamModule
  ],
  // other configurations
})
export class YourComponentModule { }

<video [height]="videoHeight" [width]="videoWidth" [src]="webcamImage?.imageAsDataUrl" autoplay></video>
<button (click)="capture()">Capture</button>

export class YourComponent {
  webcamImage: WebcamImage = null;
  videoWidth = 640;
  videoHeight = 480;

  capture() {
    this.webcamImage = this.webcamImage.imageAsDataUrl;
  }
}