[patch] updates to thumbnail standard

[Dr. Michael J. Chudobiak]

Hello all,

Following an earlier thread on this list, I would like to propose a 
minor update to the Thumbnail Managing Standard. A patch is attached 
against the HTML version. (I contacted Olivier Sessink, but he indicated 
that there was probably no valid up-to-date docbook source for the 
original HTML files.)

The proposed changes are meant to be uncontroversial, and are meant to 
codify existing best practices. The basic changes are:

1) Indicate that all cache reads and writes should be skipped for 
non-readable images (as discussed earlier on this list).

2) Indicate that image metadata, including orientation tags, should be 
respected. (The libgnomeui thumbnailer and gthumb do this for sure; 
other programs may differ.)

3) Some minor spelling corrections.


A patch is attached for discussion. A patched version is viewable here:
http://www.avtechpulse.com/opensource/spec-new/index.html


- Mike
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