[Gllug] GIMP

[Rich Walker]

Mike Brodbelt <mike at coruscant.demon.co.uk> writes:
[snip]
> Couple that with the fact that a significant number of
> users who are supposedly professional graphics people are utterly
> clueless about colour management. I regard myself as a total amateur in
> this area, and I find people representing themselves as professionals
> who talk complete rubbish. Printers who want images at 300 dpi, but
> don't seem to understand that the DPI tag in the JPEG header is
> effectively meaningless, and all you need is enough pixels in your
> image...

This really is a "don't get us started" area. One of our number runs a
photolibrary, and the amount of idiocy in this area is incredible. As
you say, the DPI thing - which comes from the fact that Mac software has
always had a "DPI" setting for generating jpeg's, I think, so people
believe it...

Then there's the people who say "we must have a TIFF 'cos it's better"
(I send them a fax tiff, usually, with a JPEG as "backup" for my own
amusement) along with the *ridiculous* copyright declarations you run into....

My favourite is still the pair of images printed on an early
high-resolution colour printer. One image was JPEG-d and re-JPEG-d 20
times. The other wasn't. No-one - professional picture researchers and
editors, the lot - got which was which right :->

>
> Oh, and there's also 16 bit mode, which Cinepaint (formerly FilmGIMP)
> supports, but GIMP doesn't. I actually think the practical use of a 16
> bit per channel editing path is of questionable value for 99.9% of
> users, but people want the feature nevertheless. 

If you've got a slide scanner, you've already noticed that you don't
have enough colour depth to work with the images... Interestingly, tho',
no-one seems to use 12-bit-per-channel JPEG, which makes me wonder about
the amount of disk space wasted storing 16-bit-per-channel images.


cheers, Rich.

-- 
rich walker         |  Shadow Robot Company | rw at shadow.org.uk
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