We are proposing a new transformation,based on computation of the sector area of a binary image. Transformation is insensitive to noise and also shift and rotation invariant. In this method lines of various positions and orientations intersect the area of interest. Each line divides the image into two portions (sectors), and the area of one of the sectors is assigned to that line. Digital realisation of the transform is time consuming - therefore we are proposing its optical realisation. Optical processor uses incoherent, white light and anamorphic optics.