ISO-IEC's image interchange facility -IIF-
This paper gives a technical description of the new Imnational Image Processing and Interchange Standard (IPirst International Image Processing and Interchange Standard (IPI), which is under elaboration by ISO/IEC JTC1/SC24. Considering the lacks and drawbacks of existing formats and current practice in exchanging digital images, the need for a new and more general approach to an image interchange format is illustrated. The IIF's data format is based on the IPI's image data model which describes data structures for images, image-related non-image data such as histograms, and image attributes for the definition of colourimetric and geometric properties. It addresses all raster graphics and prepress formats, telecommunication formats and the interchange of images among different application domains. It represents a superset of existing domain-specific image formats in such a way that the conversion of any popular de-facto standard image format into the IIF requires a minimum of computati on and works information-preserving. Besides the data format specification, the IIF also encompasses functionality for generating and parsing image data, for compressing and decompressing image data, and for the import/export of image data among the IIF, the Programmer's Imaging Kernel System (PIKS) and the application program. For the compression of image data, IIF generators provide mechanisms to apply appropriate compression schemes like JPEG or Group 3 facsimile to images or image parts.