What are the rules that determine what and how uploaded images get re-compressed? For example, I've recently uploaded the following poster image which was Saved for the Web at a quality level of 80 from Photoshop: http://kultiras.net/pics/GothamGirls.jpg Upon upload it has been re-compressed with some pretty noticeable artifacts. https://image.tmdb.org/t/p/original/5jFVck5TItyVu7bya3IZAgRMAFd.jpg
لم تجد الفلم أو المسلسل ؟ سجل دخولك و انشئها
هل تريد تقييم او اضافة هذا العنصر للقائمة؟
لست عضو؟
رد بواسطة lineker
بتاريخ أبريل 29, 2018 في 7:20 صباحا
Hi, I'm not sure how this works on site, but my instructions have always been to add the highest quality possible. Since I don't use Photoshop I'm not sure if level 80 is good or not, but for most programs I would want to go with at least 95 to ensure top quality. Often I use 98. Can you try saving in quality 95 and then re-add? That way we can see whether that setting is a problem or not.
رد بواسطة Daelin
بتاريخ أبريل 30, 2018 في 7:27 صباحا
I've tried outputting the file with a quality of 95, but uploading to here is still then adding more compression after the fact. Here is the file with a quality of 95: http://kultiras.net/pics/GothamGirls2.jpg And here it is after it was uploaded: https://image.tmdb.org/t/p/original/nx5288muDMdOM5fNHEovKYEnDCo.jpg
It's probably only really noticeable with this file because of parts like the flat reds and purple gradients that don't play well with JPEG compression.
رد بواسطة lineker
بتاريخ أبريل 30, 2018 في 10:19 صباحا
I think that must be the case. I haven't really thought about it before. However, now that I think of it, there have been a few old cases of posters with red in them that had the same slight issue.
رد بواسطة Travis Bell
بتاريخ أبريل 30, 2018 في 11:03 صباحا
Yes, reds are the worst colour to try and compress.
The current image service is using a dynamic system that calculates the compression on a per image (and size) basis so every image is compressed differently. We do compress just a tad on the high side (by design) but that's just how we gotta roll due to TMDb being a free service and bandwidth being our single biggest expense.
But no matter what, always upload the best quality asset you can. That will at least give the system the best quality source file to work on.
رد بواسطة Daelin
بتاريخ مايو 1, 2018 في 5:21 صباحا
Okay, fair enough.
You can probably remove the duplicate image https://image.tmdb.org/t/p/original/5jFVck5TItyVu7bya3IZAgRMAFd.jpg now then.
رد بواسطة lineker
بتاريخ مايو 1, 2018 في 6:01 صباحا
Image deleted. Closing topic.