Pierre Marc Dumuid wrote:

> This is a question regarding graphics in your documentation:
> 
> I notice that these pictures generally have only a few colours, (except 
> for the title bar which is shaded).
> 
> For pictures like these, it's better to use a compression that works 
> well with few colours.


the use of compression belongs to your diskspace ... ;-)
remember that LaTeX still uses uncompressed graphics.


> What I mean is, I think jpeg works on the shades within a picture, and 
> smothers them, but our eyes can't really tell the difference.  The think 
> is, with low numbers of colours, and sharp edges, (as in the text in the 
> dialog boxes) our eyes can.
> 
> I am writing this message to ask about what formats are best for what...


difficult question, depends to what you have in mind with
your text and graphics. But I'm not the one who have a lot
of knowledge in this area.


> A lot of people may assume jpeg because of the high compression ratio, 
> but I'm not sure this is the right answer...


jpeg is bad for images which contains linedrawings


> Could it be possible to generate some documentation on what format is 
> best for what...
> 
> I've seem to have in my ming that pcx and gif are good for low colours, 
> eps is good for vector graphics, and some graphics (I don't know much) 
> and jpeg for photographs.


eps is good for LaTeX ..., there are some other vector formats

> There may be others that are better for renderings (as these typically 
> contains different types of shades than photos)
> 
> Any info would be a great resource!!!


maybe that one of the users can write a short (only some pages ... :-)

report


Herbert



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