sepia static method

List<double> sepia(double value)

Implementation

static List<double> sepia(double value) {
  double inv0_607 = 1 - 0.607 * value;
  double inv0_314 = 1 - 0.314 * value;
  double inv0_869 = 1 - 0.869 * value;
  return [
    inv0_607,
    0.769 * value,
    0.189 * value,
    0,
    0,
    0.349 * value,
    inv0_314,
    0.168 * value,
    0,
    0,
    0.272 * value,
    0.534 * value,
    inv0_869,
    0,
    0,
    0,
    0,
    0,
    1,
    0
  ];
}