1. An image sensor for capturing a color image comprising: a two dimensional array of light-sensitive pixels including panchromatic pixels and color pixels having at least two different color responses, the pixels being arranged in a plurality of identical square minimal repeating units, each of the plurality of identical square minimal repeating units having at least three rows and three columns, the color pixels being arranged along one of the diagonals of the square minimal repeating unit, and all other pixels within the square minimal repeating unit being panchromatic pixels, wherein the two dimensional array is formed by placing each of the plurality of square minimal repeating units adjacent to each other, wherein the color pixels are red, green and blue pixels.