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 three different color responses, the color pixels being red, green and blue pixels, the pixels being arranged in a rectangular minimal repeating unit having at least eight pixels, wherein the minimal repeating unit has four rows and four columns, and wherein the first and third rows of the minimal repeating unit have two green pixels and two panchromatic pixels, the second row of the minimal repeating unit has three panchromatic pixels and one red pixel, and the fourth row of the minimal repeating unit has three panchromatic pixels and one blue pixel, wherein for a first color response, the color pixels having the first color response alternate with panchromatic pixels in at least two directions, and for each of the other color responses there is at least one row, column or diagonal of the repeating pattern that only has color pixels of the given color response and panchromatic pixels.