/// <summary>
///
/// </summary>
/// <param name="Absolute"></param>
/// <returns></returns>
static public BrighterDirection[,] GetRelativeImageIntensity(byte[,] Absolute)
{
int Width = Absolute.GetLength(0), Height = Absolute.GetLength(1);
var Relative = new BrighterDirection[Width, Height];
int[] XList = new int[3], YList = new int[3];
for (int CurrentY = 0; CurrentY < Height; CurrentY++)
{
YList[0] = (CurrentY == 0) ? (Height - 1) : (CurrentY - 1);
YList[1] = CurrentY;
YList[2] = (CurrentY == Height - 1) ? (0) : (CurrentY + 1);
for (int CurrentX = 0; CurrentX < Width; CurrentX++)
{
XList[0] = (CurrentX == 0) ? (Width - 1) : (CurrentX - 1);
XList[1] = CurrentX;
XList[2] = (CurrentX == Width - 1) ? (0) : (CurrentX + 1);
byte CurrentRelative = 0;
var Current = Absolute[CurrentX, CurrentY];
byte Bit = 1;
foreach (var NearY in YList)
{
foreach (var NearX in XList)
{
// Ignore Center
if (NearX == 0 && NearY == 0)
{
continue;
}
var Near = Absolute[NearX, NearY];
if (Current > Near)
{
CurrentRelative |= Bit;
}
Bit <<= 1;
}
}
Relative[CurrentX, CurrentY] = (BrighterDirection)CurrentRelative;
}
}
return(Relative);
}
/// <summary>
///
/// </summary>
/// <param name="Absolute"></param>
/// <returns></returns>
public static BrighterDirection[,] GetRelativeImageIntensity(byte[,] Absolute)
{
int Width = Absolute.GetLength(0), Height = Absolute.GetLength(1);
var Relative = new BrighterDirection[Width, Height];
int[] XList = new int[3], YList = new int[3];
for (int CurrentY = 0; CurrentY < Height; CurrentY++)
{
YList[0] = (CurrentY == 0) ? (Height - 1) : (CurrentY - 1);
YList[1] = CurrentY;
YList[2] = (CurrentY == Height - 1) ? (0) : (CurrentY + 1);
for (int CurrentX = 0; CurrentX < Width; CurrentX++)
{
XList[0] = (CurrentX == 0) ? (Width - 1) : (CurrentX - 1);
XList[1] = CurrentX;
XList[2] = (CurrentX == Width - 1) ? (0) : (CurrentX + 1);
byte CurrentRelative = 0;
var Current = Absolute[CurrentX, CurrentY];
byte Bit = 1;
foreach (var NearY in YList) foreach (var NearX in XList)
{
// Ignore Center
if (NearX == 0 && NearY == 0) continue;
var Near = Absolute[NearX, NearY];
if (Current > Near)
{
CurrentRelative |= Bit;
}
Bit <<= 1;
}
Relative[CurrentX, CurrentY] = (BrighterDirection)CurrentRelative;
}
}
return Relative;
}