Title: A File Format for the Exchange of Images in the Internet
Author(s): A. Katz, D. Cohen.
Status: PROPOSED STANDARD
Date: Apr 1992
Length: 54072
This document defines a standard file format for the exchange of fax-like black and white images within the Internet. It is a product of the Network Fax Working Group of the Internet Engineering Task Force (IETF).
The standard is:
** The file format should be TIFF-B with multi-page files
supported. Images should be encoded as one TIFF strip
per page.
** Images should be compressed using MMR when possible. Images
may also be MH or MR compressed or uncompressed. If MH or MR
compression is used, scan lines should be "byte-aligned".
** For maximum interoperability, image resolutions should
either be 600, 400, or 300 dpi; or else be one of the
standard Group 3 fax resolutions (98 or 196 dpi
vertically and 204 dpi horizontally).
Note that this specification is self contained and an implementation should be possible without recourse to the TIFF references, and that only the specific TIFF documents cited are relevant to this specification. Updates to the TIFF documents do not change this specification.
Experimentation with this file format specified here is encouraged.
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