ðòïåëôù 


  áòèé÷ 


Apache-Talk @lexa.ru 

Inet-Admins @info.east.ru 

Filmscanners @halftone.co.uk 

Security-alerts @yandex-team.ru 

nginx-ru @sysoev.ru 

  óôáôøé 


  ðåòóïîáìøîïå 


  ðòïçòáííù 



ðéûéôå
ðéóøíá












     áòèé÷ :: Filmscanners
Filmscanners mailing list archive (filmscanners@halftone.co.uk)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: filmscanners: Encoding/compression Was:CD storage



Tom writes ...

> >Hi everyone,If you are storing lots of images its worth using
Photoshops
> >LZW compression,If you have Photoshop that is .It will save a fair
bit
> >of space and wont degrade your hard won image like Jpeg does.
>
> I would assume that LZW is a sort of runlength encoding or otherwise
> non-destructive compression. There is no reason not to use it.

    Some people don't use it simply because you don't save much more
than 15% with photographic images, and then dealing with the time
consuming overhead of encoding or decoding.

> Otherwise I believe GIF is a compressed bitmap format. You don't
loose any
> quality by exporting to GIF, but your files get significantly
smaller than
> with TIFF/BMP.

    Not possible ... unless you convert your 24bit RGB to an 8bit
"indexed" palette ... and throw away much more information than with
JPEG.

shAf  :o)




 




Copyright © Lexa Software, 1996-2009.