private static void ProcessMiddleOddRows(RawPixel <ushort> raw, int Width, VectorPixel pix)
{
float maxValue = raw.MaxValue;
// First left pixel
pix.SetAndMoveNext(
(raw.GetRel(1, 0) / maxValue),
(raw.Value / maxValue),
((raw.GetRel(0, -1) + raw.GetRel(0, +1)) / maxValue / 2));
raw.MoveNext();
var lastX = Width - 1;
for (var x = 1; x < lastX; x += 2)
{
var xy = raw.Value;
var x1y = raw.GetRel(+1, 0);
var x11y12 = raw.GetRel(+1, -1) + raw.GetRel(+1, +1);
pix.SetAndMoveNext(
(xy / maxValue),
((raw.GetRel(-1, 0) + x1y + raw.GetRel(0, -1) + raw.GetRel(0, +1)) / maxValue / 4),
((raw.GetRel(-1, -1) + x11y12 + raw.GetRel(-1, +1)) / maxValue / 4));
pix.SetAndMoveNext(
((xy + raw.GetRel(+2, 0)) / maxValue / 2),
(x1y / maxValue),
(x11y12) / maxValue / 2);
raw.MoveNext();
raw.MoveNext();
}
// First right pixel
pix.SetAndMoveNext(
(raw.Value / maxValue),
((raw.GetRel(0, -1) + raw.GetRel(0, +1) + (raw.GetRel(-1, 0) << 1)) / maxValue / 4),
((raw.GetRel(-1, -1) + raw.GetRel(-1, +1)) / maxValue / 2));
raw.MoveNext();
}
private static void ProcessMiddleEvenRows(RawPixel <ushort> raw, int Width, VectorPixel pix)
{
float maxValue = raw.MaxValue;
// Second left pixel
pix.SetAndMoveNext(
((raw.GetRel(1, -1) + raw.GetRel(1, +1)) / maxValue / 2.0f),
((raw.GetRel(0, -1) + raw.GetRel(0, +1) + (raw.GetRel(1, 0) << 1)) / maxValue / 4.0f),
raw.Value / maxValue);
raw.MoveNext();
var lastX = Width - 1;
for (var x = 1; x < lastX; x += 2)
{
var xy = raw.Value;
var x1y = raw.GetRel(+1, 0);
var xy12 = raw.GetRel(0, -1) + raw.GetRel(0, +1);
pix.SetAndMoveNext(
(xy12) / maxValue / 2.0f,
(xy) / maxValue,
((raw.GetRel(-1, 0) + x1y)) / maxValue / 2.0f);
pix.SetAndMoveNext(
((xy12 + raw.GetRel(+2, -1) + raw.GetRel(+2, +1)) / maxValue / 4),
((xy + raw.GetRel(+2, 0) + raw.GetRel(+1, -1) + raw.GetRel(+1, +1)) / maxValue / 4),
(x1y) / maxValue);
raw.MoveNext();
raw.MoveNext();
}
// Second right pixel
pix.SetAndMoveNext(
((raw.GetRel(0, -1) + raw.GetRel(0, +1)) / maxValue / 2),
(raw.Value) / maxValue,
(raw.GetRel(-1, 0) / maxValue));
raw.MoveNext();
}
private static void ProcessMiddleEvenRows(RawPixel <ushort> raw, int Width, Color <ushort> pix)
{
// Second left pixel
pix.SetAndMoveNext(
(ushort)((raw.GetRel(1, -1) + raw.GetRel(1, +1))),
(ushort)((raw.GetRel(0, -1) + raw.GetRel(0, +1) + (raw.GetRel(1, 0) << 1)) >> 1),
(ushort)(raw.Value << 1));
raw.MoveNext();
var lastX = Width - 1;
for (var x = 1; x < lastX; x += 2)
{
var xy = raw.Value;
var x1y = raw.GetRel(+1, 0);
var xy12 = raw.GetRel(0, -1) + raw.GetRel(0, +1);
pix.SetAndMoveNext(
(ushort)(xy12),
(ushort)(xy << 1),
(ushort)((raw.GetRel(-1, 0) + x1y)));
pix.SetAndMoveNext(
(ushort)((xy12 + raw.GetRel(+2, -1) + raw.GetRel(+2, +1)) >> 1),
(ushort)
((xy + raw.GetRel(+2, 0) + raw.GetRel(+1, -1) + raw.GetRel(+1, +1)) >> 1),
(ushort)(x1y << 1));
raw.MoveNext();
raw.MoveNext();
}
// Second right pixel
pix.SetAndMoveNext(
(ushort)((raw.GetRel(0, -1) + raw.GetRel(0, +1))),
(ushort)(raw.Value << 1),
(ushort)(raw.GetRel(-1, 0) << 1));
raw.MoveNext();
}
