private static void CalculateMoments(ColorMoment[,,,] moments)
{
var areaSquared = new ColorMoment[SideSize, SideSize];
var area = new ColorMoment[SideSize];
for (int alphaIndex = 1; alphaIndex < SideSize; alphaIndex++)
{
for (int redIndex = 1; redIndex < SideSize; redIndex++)
{
Array.Clear(area, 0, area.Length);
for (int greenIndex = 1; greenIndex < SideSize; greenIndex++)
{
var line = new ColorMoment();
for (int blueIndex = 1; blueIndex < SideSize; blueIndex++)
{
line.AddFast(ref moments[alphaIndex, redIndex, greenIndex, blueIndex]);
area[blueIndex].AddFast(ref line);
areaSquared[greenIndex, blueIndex].AddFast(ref area[blueIndex]);
ColorMoment moment = moments[alphaIndex - 1, redIndex, greenIndex, blueIndex];
moment.AddFast(ref areaSquared[greenIndex, blueIndex]);
moments[alphaIndex, redIndex, greenIndex, blueIndex] = moment;
}
}
}
}
}
private static void CalculateMoments(ColorMoment[, , ,] moments)
{
ColorMoment[,] areaSquared = new ColorMoment[SideSize, SideSize];
ColorMoment[] area = new ColorMoment[SideSize];
for (int alphaIndex = 1; alphaIndex < SideSize; alphaIndex++)
{
for (int redIndex = 1; redIndex < SideSize; redIndex++)
{
Array.Clear(area, 0, area.Length);
for (int greenIndex = 1; greenIndex < SideSize; greenIndex++)
{
ColorMoment line = new ColorMoment();
for (int blueIndex = 1; blueIndex < SideSize; blueIndex++)
{
line.AddFast(ref moments[alphaIndex, redIndex, greenIndex, blueIndex]);
area[blueIndex].AddFast(ref line);
areaSquared[greenIndex, blueIndex].AddFast(ref area[blueIndex]);
ColorMoment moment = moments[alphaIndex - 1, redIndex, greenIndex, blueIndex];
moment.AddFast(ref areaSquared[greenIndex, blueIndex]);
moments[alphaIndex, redIndex, greenIndex, blueIndex] = moment;
}
}
}
}
}
public static void then_should_add_each_property_value_together()
{
// Arrange
var colorMoment = new ColorMoment { Alpha = 1, Blue = 2, Green = 3, Moment = 4, Red = 5, Weight = 6 };
// Act
colorMoment.AddFast(ref colorMoment);
// Assert
Assert.That(colorMoment.Alpha, Is.EqualTo(2));
Assert.That(colorMoment.Red, Is.EqualTo(10));
Assert.That(colorMoment.Green, Is.EqualTo(6));
Assert.That(colorMoment.Blue, Is.EqualTo(4));
Assert.That(colorMoment.Moment, Is.EqualTo(8.0f));
Assert.That(colorMoment.Weight, Is.EqualTo(12));
}
