RescaleGrayscale4x4_to_8x8.cs

RescaleGrayscale4x4_to_8x8

// floored output
{
    0,  0,  0,  1,  1,  2,  2,  3,
    1,  2,  2,  2,  3,  3,  4,  4,
    3,  3,  4,  4,  5,  5,  5,  6,
    5,  5,  6,  6,  6,  7,  7,  8,
    6,  7,  7,  8,  8,  9,  9,  9,
    8,  8,  9,  9,  10, 10, 11, 11,
    10, 10, 11, 11, 12, 12, 12, 13,
    12, 12, 12, 13, 13, 14, 14, 15
},

// raw output without rounding
[0] = {double} 0
[1] = {double} 0.42857142857142855
[2] = {double} 0.8571428571428571
[3] = {double} 1.2857142857142856
[4] = {double} 1.7142857142857142
[5] = {double} 2.1428571428571428
[6] = {double} 2.5714285714285712
[7] = {double} 3
[8] = {double} 1.7142857142857142
[9] = {double} 2.1428571428571428
[10] = {double} 2.5714285714285716
[11] = {double} 2.9999999999999996
[12] = {double} 3.4285714285714279
[13] = {double} 3.8571428571428568
[14] = {double} 4.2857142857142847
[15] = {double} 4.7142857142857144
[16] = {double} 3.4285714285714284
[17] = {double} 3.8571428571428572
[18] = {double} 4.2857142857142856
[19] = {double} 4.7142857142857135
[20] = {double} 5.1428571428571423
[21] = {double} 5.5714285714285712
[22] = {double} 5.9999999999999991
[23] = {double} 6.4285714285714288
[24] = {double} 5.1428571428571423
[25] = {double} 5.5714285714285712
[26] = {double} 6
[27] = {double} 6.428571428571427
[28] = {double} 6.8571428571428559
[29] = {double} 7.2857142857142856
[30] = {double} 7.7142857142857135
[31] = {double} 8.1428571428571423
[32] = {double} 6.8571428571428568
[33] = {double} 7.2857142857142847
[34] = {double} 7.7142857142857144
[35] = {double} 8.1428571428571423
[36] = {double} 8.5714285714285712
[37] = {double} 9
[38] = {double} 9.4285714285714288
[39] = {double} 9.8571428571428577
[40] = {double} 8.5714285714285712
[41] = {double} 8.9999999999999982
[42] = {double} 9.4285714285714288
[43] = {double} 9.8571428571428559
[44] = {double} 10.285714285714286
[45] = {double} 10.714285714285715
[46] = {double} 11.142857142857142
[47] = {double} 11.571428571428571
[48] = {double} 10.285714285714285
[49] = {double} 10.714285714285712
[50] = {double} 11.142857142857142
[51] = {double} 11.571428571428569
[52] = {double} 12
[53] = {double} 12.428571428571427
[54] = {double} 12.857142857142858
[55] = {double} 13.285714285714285
[56] = {double} 12
[57] = {double} 12.428571428571427
[58] = {double} 12.857142857142858
[59] = {double} 13.285714285714286
[60] = {double} 13.714285714285714
[61] = {double} 14.142857142857142
[62] = {double} 14.571428571428571
[63] = {double} 15