Abstract: A sound damping wallboard and methods of forming a sound damping wallboard are disclosed. The sound damping wallboard comprises a gypsum layer with a gypsum surface having an encasing layer. The encasing layer is partially removed to expose the gypsum surface and form a gypsum surface portion and a first encasing layer portion on the gypsum layer. A sound damping layer is applied to the gypsum layer to cover at least part of the gypsum surface portion and the encasing layer portion.

Abstract: A process for adjusting the content of a digitized image file used in printing an interlaced image on a lenticular lens material to substantially eliminate ghosting effects which might otherwise occur when the printed image is viewed by an observer. A pixel address within the image file is selected, as is a preselected number of pixel addresses adjacent the selected address on both sides thereof. Percent color values contained at each of the addresses within the resulting range of addresses are added together and the result divided by the total number of addresses to compute an average color percent value. The percent color value at the selected address is compared with the computed average and is changed by a predetermined amount if the percent color value is greater or less than the computed average. The revised percent color value is then stored at the selected address. The process is repeated for each pixel address within the file.