getRelativeFaces method
Retrieve rectangles relative to the specific size
Implementation
List<Rect> getRelativeFaces(Size size) => faces.map((face) {
return Offset(
face.topLeft.dx / originalSize.width * size.width,
face.topLeft.dy / originalSize.height * size.height,
) &
Size(
face.size.width / originalSize.width * size.width,
face.size.height / originalSize.height * size.height,
);
}).toList();