public unsafe static int[] LineValues(this Image image, int line)
{
if (line < 0 || line > image.Height)
{
throw new ArgumentException("That line is not possible");
}
ImagePlane plane = image.Planes[0];
var size = plane.Parent.Size;
var access = plane.GetLinearAccess();
var xInc = access.XInc.ToInt64();
var yInc = access.YInc.ToInt64();
var pBase = (byte *)access.BasePtr;
int y = line;
int[] lineValues = new int[size.Width];
for (int x = 0; x < size.Width; x++)
{
var pPixel = pBase + x * xInc + y * yInc;
lineValues[x] = *pPixel;
}
return(lineValues);
}
public unsafe PixelHelper(ImagePlane plane)
{
Size = plane.Parent.Size;
Access = plane.GetLinearAccess <byte>();
XInc = Access.XInc.ToInt64();
YInc = Access.YInc.ToInt64();
PBase = (byte *)Access.BasePtr;
}
public static unsafe int[] ToHistogram(this ImagePlane plane)
{
var histogram = new int[byte.MaxValue + 1];
var size = plane.Parent.Size;
var access = plane.GetLinearAccess();
var xInc = access.XInc.ToInt64();
var yInc = access.YInc.ToInt64();
var pBase = (byte *)access.BasePtr;
for (int y = 0; y < size.Height; y++)
{
for (int x = 0; x < size.Width; x++)
{
var pPixel = pBase + x * xInc + y * yInc;
++histogram[*pPixel];
}
}
return(histogram);
}