jpeg quality : 95 ?

badtzjunk

Joined: 2002-09-25
Posts: 17
Posted: Wed, 2002-09-25 16:01

When you set the jpeg quality at 95, is that 100% of the original quality?

if not, then why isn't there an option for 100 ?

thanks! :smile:
 
deckerboy1

Joined: 2002-09-23
Posts: 10
Posted: Wed, 2002-09-25 23:31

i'm not an expert on the topic :grin:, but basically, the difference at that point is so inscrutable that there is no point of having 100. (if indeed 95 is not 100% quality...)
 
badtzjunk

Joined: 2002-09-25
Posts: 17
Posted: Thu, 2002-09-26 05:39

:???:

 
bharat
bharat's picture

Joined: 2002-05-21
Posts: 7994
Posted: Thu, 2002-09-26 05:55

All JPEG transformations with the NetPBM libraries are lossful. 95% is the highest quality rating that will not make the JPEG file incredibly large. You should probably go read up on JPEG standards to understand this better.
 
badtzjunk

Joined: 2002-09-25
Posts: 17
Posted: Thu, 2002-09-26 10:32

is there a script to where it re-sizes the image on-the-fly to where it's @ a certain resolution?

when i upload a big resolution file, it keeps the original file, the modified file, and the thumbnail [even though i set it to not have an intermediary file] ????
 
bharat
bharat's picture

Joined: 2002-05-21
Posts: 7994
Posted: Sat, 2002-09-28 02:34

Gallery 1.x does not resize on the fly. G2 will provide more support for that capability.
If you turn off auto-resizing in your album properties, it won't generate the intermediate
resized version when you upload new images.