- First create a Firebase project and add the image_picker and firebase_ml_vision dependencies.
- Use image_picker to get the image from camera/gallery & convert it into a format that can be understood by ML Kit.
- Pass the converted image to the detector and get it to scan the image for possible faces.
- The face detector will return a list of Face class which contains the Rect coordinates.
- The Painter will then use these coordinates to draw a rectangular box around the faces using these coordinates