Page 7 - May_Newsletter_2017

The standard software interface in current use is TWAIN. This is an ap-
plications programming interface (API) and communications protocol
that regulates communication between software and digital imaging de-
vices, such as image scanners and digital cameras.

The design of TWAIN began in January 1991. The TWAIN group was
originally launched in 1992 by several members of the imaging industry,
with the intention of standardizing communication between image han-
dling software and hardware. Review of the original TWAIN Developer’s
Toolkit occurred from April, 1991 through January, 1992.

Common problems

• Scanners produce an image of the source

• Text cannot be editted
• Scan may be a large file
• Poor quality source will give poor quality output
• Driver software may be operating system specific
- common issue when Win 7 64bit came out.