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