Having recently been successful at applying Mssrs. Fraser and Schewe output sharpening techniques in Real World Image Sharpening, I'm a bit stumped now as to how to output sharpen for a billboard.
We build the ID layout at 1/48'' scale and the image is placed at 816ppi but when full size will be 17ppi and printed on inkjet. According to Bruce and Jeff, the image must be output sharpened at full size and final rez (no exceptions). Any thoughts as to how I can achieve this? Thanks!