Flatbed and slide scanners are located in the Visual Resources Collection.
Visual Resources staff members are available to show patrons how to use the scanning equipment.
Best practices for scanning or creating images for use:
Just like in selecting and creating images for presentations, one has to look at the original size of the image and the output size. For general printing of an image (say, a poster) 350 dpi is great. If you are printing this, how many inches will the print be? Three inches on the shortest side? Then that short side needs to have 1,050 pixels.
Lets say you found an image in a book that is 8 x 10 for your poster. Scanning it a 350 ppi results in 2800 x 3500 pixels – more than enough for your three inch image. After scanning you can resize it to 1050 but the recommendation is to keep it larger. Better to start with an image that is too big than too small. Make a derivative instead.
If you are scanning from a book, magazine, newspaper, postcard, calendar, etc. the printer likely used four half-tone screens (Cyan, Magenta, Yellow, and black – CMYK). In a scanned image there may be moire pattern – interference between the pattern of grids from the screens and the scanner. In order to remove this the scanner software offers a descreen option. Use this when scanning for projection or printing.If quality is a central concern, try a couple different settings to make sure you get the product you want.
If you need the highest possible quality image from a book or other printed material for your classwork please fill out an order form. Photography for those within the Department of Art and Archaeology can be done for the best possible outcome.