Pinta.LevelsDialog.MaskAvg C# (CSharp) Method

        private int MaskAvg(ColorBgra before)
        {
            int count = 0, total = 0;

            for (int c = 0; c < 3; c++) {
                if (mask [c]) {
                    total += before [c];
                    count++;
                }
            }

            if (count > 0) {
                return total / count;
            }
            else {
                return 0;
            }
        }