s located at the jth row and kth column when one of j and k is an even integer and the other an odd integer; (b) when j is even horizontally interpolate rows of pixel values to yield rows of red values R(j,k) and green values G(j,k) for all k; (c) when j is odd horizontally interpolate rows of pixel values to yield green values G(j,k) and blue values B(j,k) for all k; (d) when j is an even integer