Image and Scanner Interface Specification (ISIS) is an industry standard interface for
image scanning
An image scanner—often abbreviated to just scanner—is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image. Commonly used in offices are variations of the desktop ''flatbed scanner'' ...
technologies, developed by Pixel Translations in 1990 (which became
EMC Corporation
Dell EMC (EMC Corporation until 2016) is an American multinational corporation headquartered in Hopkinton, Massachusetts and Round Rock, Texas, United States. Dell EMC sells data storage, information security, virtualization, analytics, clo ...
's
Captiva Software
OpenText Corporation (also written ''opentext'') is a Canadian company that develops and sells enterprise information management (EIM) software.
OpenText, headquartered in Waterloo, Ontario, Canada, is Canada's fourth-largest software company ...
and later acquired by
OpenText
OpenText Corporation (also written ''opentext'') is a Canadian company that develops and sells enterprise information management (EIM) software.
OpenText, headquartered in Waterloo, Ontario, Canada, is Canada's fourth-largest software company ...
).
ISIS is an open standard for scanner control and a complete image-processing framework. It is currently supported by a number of application and scanner vendors.
Functions
The modular design allows the scanner to be accessed both directly or with built-in routines to handle most situations automatically.
A message-based interface with
tags is used so that features, operations, and formats not yet supported by ISIS can be added as desired without waiting for a new version of the specification.
The standard addresses all of the issues that an application using a scanner needs to be concerned with. Functions include but are not limited to selecting, installing, and configuring a new scanner; setting scanner-specific parameters; scanning, reading and writing files, and fast
image scaling
In computer graphics and digital imaging, image scaling refers to the resizing of a digital image. In video technology, the magnification of digital material is known as upscaling or resolution enhancement.
When scaling a vector graphic image ...
, rotating, displaying, and printing. Drivers have been written to dynamically process data for operations such as converting grayscale to binary image data.
An ISIS interface can run scanners at or above their rated speed by linking drivers together in a pipe so that data flows from a scanner driver to compression driver, to packaging driver, to a file, viewer, or printer in a continuous stream, usually without the need to buffer more than a small portion of the full image. As a result of using the piping method, each driver can be optimised to perform one function well. Drivers are typically small and modular in order to make it simple to add new functionality to an existing application.
See also
*
Scanner Access Now Easy
Scanner Access Now Easy (SANE) is an open-source application programming interface (API) that provides standardized access to any raster image scanner hardware ( flatbed scanner, handheld scanner, video- and still-cameras, frame grabbers, etc.). ...
*
TWAIN
Twain may refer to:
People
* Mark Twain, pen name of American writer Samuel Langhorne Clemens (1835–1910)
* Norman Twain (1930–2016), American film producer
* Shania Twain (born 1965), Canadian singer-songwriter
Places
* Twain, California, a ...
*
Windows Image Acquisition Windows Image Acquisition (WIA; sometimes also called Windows Imaging Architecture) is a proprietary Microsoft driver model and application programming interface (API) for Microsoft Windows Me and later Windows operating systems that enables graphi ...
External links
EMC CaptivaOfficial portal for ISIS developers* http://www.scannerdrivers.com
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Image scanning
Standards