Abstract: A lenticular interlaced image file manipulation/screening method is disclosed. Frame files (which may or may not have already have been compressed) can be fractionally scaled in a coextending lenticular direction to obtain fractionally scaled frame files. Alternatively, frame files can be interlaced to create an interlaced frame file, which can be fractionally scaled. Prior to output, a screened interlaced frame file can then be normalized in a coextending lenticular direction to normalize the initial fractional scaling in the coextending lenticular direction. The invention permits manipulation of work files used to create a lenticular image so as to decrease lenticular image frame memory usage and file handling time, increase the number of frames in a lenticular image for use with high resolution output devices, and increase lenticular image quality.