The Ohio Memory online scrapbook will include both derivative and high-resolution image files. Derivative images will be likely the most heavily used. OhioLINK, which will store image files for the scrapbook, has software that automatically generates both thumbnail and service images. There are subjective decisions that may influence how materials should be digitized. Though bitonal scanning is normally sufficient for typed documents, color scanning may be preferred in this case.
Scanners operate best when used around a consistent, fairly dim light source.
Scanning at higher resolutions does not necessarily afford additional benefits. While the difference between 72 dpi and 600 dpi may be obvious, the same may not be true when increasing from 600 dpi to 1200 dpi. A representative subset of any collection should be digitized prior to production to determine whether these guidelines provide acceptable results for intended uses, such as viewing with monitors or printing. Different scanners will produce different results, as will different commercial scanning vendors. Quality control throughout a scanning project is vital.