The ImageCapture() constructor creates a new ImageCapture object.

videoTrack

A MediaStreamTrack from which the still images will be taken. This can be any source, such as an incoming stream of a video conference, a playing movie, or the stream from a webcam.

A new ImageCapture object which can be used to capture still frames from the specified video track.

The following example shows how to use a call to MediaDevices.getUserMedia() to retrieve the MediaStreamTrack needed by the ImageCapture() constructor.

navigator.mediaDevices
  .getUserMedia({ video: true })
  .then((mediaStream) => {
    document.querySelector("video").srcObject = mediaStream;
    const track = mediaStream.getVideoTracks()[0];
    imageCapture = new ImageCapture(track);
  })
  .catch((error) => console.error(error));