An image sensor for capturing a color image is disclosed having a
two-dimensional array having first and second groups of pixels, arranged
in rows and columns, wherein pixels from the first group of pixels have
narrower spectral photoresponses than pixels from the second group of
pixels; and the placement of the first and second groups of pixels
defining a pattern that has a minimal repeating unit including at least
six pixels, so that at least some rows or columns of the minimal
repeating unit are composed only of pixels from the second group and some
rows or columns of the minimal repeating unit are composed only of pixels
from the first group, wherein the rows or columns that are composed only
of pixels from the first group are composed of at most two colors of
pixels from the first group.