Graphic imaging method for pictures or text

摘要

The imaging method uses 2 relatively displaced rasters, acting as an image raster and a reference raster, used together for visualisation of pictures or text which are not visible within either raster. The reference raster is provided by a transparent foil covered over 50 % of its area with opaque image elements, the image raster provided by dark or coloured image elements against a bright background, with the elements for the image to be visualised aligned with the transparent regions of the reference raster.