An imaging pixel array includes an active area of pixels, organized into
rows and columns of pixels. The array also includes a plurality of dark
pixel columns adjacent to the active area of pixels such that rows of
pixels in the active area of pixels extend across the plurality of dark
pixel columns. The plurality of dark pixel columns are composed of tied
pixels. The array also includes a plurality of dark pixel rows adjacent
to the active area of pixels and the plurality of dark pixel columns such
that columns of pixels in the active area of pixels extend across the
plurality of dark pixel rows. The plurality of dark pixel rows are
composed of both optically black pixels and tied pixels on the same row.