invert static method

List<double> invert()

Implementation

static List<double> invert() {
  const double offset = 255.0;
  return [
    -1,
    0,
    0,
    0,
    offset,
    0,
    -1,
    0,
    0,
    offset,
    0,
    0,
    -1,
    0,
    offset,
    0,
    0,
    0,
    1,
    0
  ];
}