Support Forum

Advanced Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
general-topic
Thumbnail colors are washed out
Avatar
lisalew
Member
Free Members
sp_UserOfflineSmall Offline
Sep 29, 2011 - 2:43 pm

I am using the forum for a photography critique site.  I have the thumbnails set to 500 pixels.  However, the color in the thumbnails is substantially less vibrant than the true image (like if I click on the mouse and the image enlarges, it's a completely better image).  Is there a way to change the compression or whatever is happening that diminishes the quality of the picture?

Avatar
Mr Papa
Simi Valley, CA
SP Master
Free Members
sp_UserOfflineSmall Offline
Sep 29, 2011 - 9:28 pm

the thumbnail quality is set to 80%...  that just appears to be a left over from the previous tool we used...  if you could try editing the file uploader plugin, file library/sp-plupload-config.php and change the thumb quality to 99 and see if that helps...

if it does, we can either make that permanent or make the field available on the upload options panel...

Avatar
lisalew
Member
Free Members
sp_UserOfflineSmall Offline
Oct 20, 2011 - 11:00 am

I noticed you made a modification to this so we can choose the quality of the thumbnail - thank you!  The color is still significantly different on some thumbnails (when the image is enlarged, it looks way different than the thumbnail).  I can send you a login and post link to see what I mean if you'd like.  Is there a way to just resize the image without changing the color?

Avatar
Yellow Swordfish
Glinton, England
SP Master
sp_UserOfflineSmall Offline
Oct 20, 2011 - 2:36 pm

Wow - I didn't even know myself we had this feature! laugh

I can only talk about the art of resizing images and whatever method you use they will always lose quality and the colours will always be resampled and compromised. Some tools are better at it than others of course. photoshop is pretty damn good but that is what you pay for. PHP can hardly compete with that.

Having said that I have not myself noticed anything dire about the thumbnails. Do you have an example?

andy-signature.png
YELLOW
SWORDFISH
Avatar
lisalew
Member
Free Members
sp_UserOfflineSmall Offline
Oct 20, 2011 - 10:57 pm

babybasket.jpgImage Enlargerbabybasketthumb.jpgImage EnlargerHere is an example - the darker one is the thumbnail...

Avatar
Mr Papa
Simi Valley, CA
SP Master
Free Members
sp_UserOfflineSmall Offline
Oct 21, 2011 - 10:18 am

at this point, need Andy to weigh in as he is the graphics dude here...  perhaps the GD tools just cannot handle it properly...  thats about the best we can assume is on all servers...

Forum Timezone: Europe/Stockholm
Most Users Ever Online: 1170
Currently Online:
Guest(s) 1
Currently Browsing this Page:
1 Guest(s)
Top Posters:
Mr Papa: 19448
Ike: 2086
Brandon: 864
kvr28: 804
jim: 649
FidoSysop: 577
Conrad_Farlow: 531
fiddlerman: 358
Stefano Prete: 325
Member Stats:
Guest Posters: 618
Members: 17348
Moderators: 0
Admins: 4
Forum Stats:
Groups: 7
Forums: 17
Topics: 10120
Posts: 79607