Its an image where it's been enlarged, so the pixels are like a centimetre wide, and then split up so it can be printed, then all the bits stuck together in the right order.
Ok, so the lab technician is going to have a fit if he checks the logs for tonight and my flat manger will kill me when he sees I've used sticky tape on the walls but here it is:
genius peter, shall be abusing my design suite printer priveliges on montag at uni.
for those wondering, its a rasterized image, the rasterbator is a justa name they gave it. as far as i know it uses dots to create dots.
the image is made of dots, even the original. these dots could be enlarged but they would look pixelated (dot gain). by calculating the increase ratio and using normal dot size to create large dots, you dont lose as much detail. basically.