Abstract: A method and a device for converting a first picture composed of M pixels towards a second substantially identical picture composed of L pixels (M.epsilon.N, L.epsilon.N, M.noteq.L) which are destined for pixelwise representation, wherein each K.sup.th first pixel value is weighed with a weight factor h(k,i) determined by means of projection of the second picture on the first picture and wherein before the second pixel value y(i) is determined a first transfer function component (T) is added to each k.sup.th first pixel value and after determining the second pixel value y(i) a second transfer component (T') is added to that pixel value.