Implement a GenericMarkerDetector which is using the new IXrgbReader interface in his DetectAllMarkers(IXrgbReader) method:
 
interface IXrgbReader
{
int Width { get; }
int Height { get; }

int GetPixel(int, int);

// Get XRGB color for a set of x and y coordinates, only the RGB part will actually be used.
int[] GetPixels(int[], int[]);
 
int[] GetAllPixels();
}