1. A method for interpolation of an image information value for a pixel of an interline (y), comprising the steps of: selecting from a number of image directions (dx), to each of which a direction quality value (qd) is assigned, a direction of interpolation (dx0) by comparing these direction quality values; determining the image information value (S(x,y)) being interpolated in dependence on image information values assigned to pixels lying adjacent to the pixel (x,y) being interpolated in the direction of interpolation (dx); ascertaining a direction quality value (qd) for an image direction by selecting a pixel group having at least two pixels; determining a single direction quality value (q) for each pixel of the pixel group, the single direction quality value (q) being dependent on image information values assigned to image regions lying adjacent to the particular pixel of the group in the image direction (dx); and creating the direction quality value as a function of the single direction quality values (q) of the pixel group.