We're having a pretty serious issue with color-shifting between our post-processed images and the images being displayed in Gallery 2.3. The uploaded images are significantly and noticeably color-shifting. Any ideas as to why this might be happening or, more importantly, how we can fix it?
Thanks!!! 
Gallery URL = http://gallery.factorfourphoto.com/main.php
Gallery version = 2.3 core 1.3.0
API = Core 7.54, Module 3.9, Theme 2.6, Embed 1.5
PHP version = 5.2.6 cgi-fcgi
Webserver = Apache
Database = mysqli 5.0.67-userstats-log, lock.system=flock
Toolkits = ArchiveUpload, Exif, Ffmpeg, Getid3, jpegtran, LinkItemToolkit, NetPBM, Thumbnail, Gd, SquareThumb
Acceleration = none, none
Operating system = Linux doheny 2.6.24.2-grsec-p4-peon-1.1.2-grsec #1 SMP Wed Feb 20 15:30:29 PST 2008 i686
Default theme = carbon
gettext = enabled
Locale = en_US
Browser = Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.11) Gecko/2009060215 Firefox/3.0.11 (.NET CLR 3.5.30729)
Rows in GalleryAccessMap table = 600
Rows in GalleryAccessSubscriberMap table = 794
Rows in GalleryUser table = 8
Rows in GalleryItem table = 790
Rows in GalleryAlbumItem table = 45
Rows in GalleryCacheMap table = 0
Posted: Tue, 2009-06-30 22:06
Posts: 16503
CMYK?
Try uninstalling both GD and NetPBM and getting ImageMagick working and enabling the CMYK option in Site Admin > ImageMagick
http://gallery.menalto.com/node/87298
Note, you may not have that option depending on which version of IM is installed on your server and even possibly how it's configured. For example, I don't have that option at my shared host (ImageMagick 6.5.1-2), but I do at my VPS where I just finished setting almost everything up (ImageMagick 6.3.7). Yes, a slightly older version of IM, but that's what's in the current, stable repository for Debian 5.0 and it support CMYK.
____________________________________________
Like Gallery? Like the support? Donate now!!! See G2 live here
Posts: 2
No, the images are being exported in RGB. The problem, I think, has to do with the fact that we shoot (and post-process) in AdobeRGB (1998). I've run a few tests, and it seems to be some kind of strangeness dealing with Photoshop and sRGB. The solution seems to be exporting in sRGB, even though there's a slight color shift when converting from AdobeRGB to sRGB. That colorshift is a lot less than the oddness going on when we upload to Gallery, so I suppose that'll have to be the solution for now.
Any other suggestions would be welcome. I'm trying to keep the images looking 'true' to color... sheesh...
Posts: 16503
This still stands:
They looked fine to me :D They're going to look different on every single monitor they are displayed on. I'd be very surprised if you get even 1 single visitor every couple of years that even has a color calibrated monitor, let alone a client.
____________________________________________
Like Gallery? Like the support? Donate now!!! See G2 live here
Posts: 22888
This might help as well:
http://gallery.menalto.com/node/40199
but you still have not told us what image toolkit you are using.
please post a before and after image for comparison.
Dave
_____________________________________________
Blog & G2 || floridave - Gallery Team
Posts: 11
It's all to do with colour management and the type of monitor you have. Best use a colour managed browser. See
http://dpnow.com/forum2/blog.php?b=79