Problems exporting a red image jpeg sRGB for facebook

Forum|Forum|9 years ago
January 18, 2017
4 replies
3200 views

Hi there,

I have huge problems exporting some pictures I shot in studio, a red flash was the main light directed to the subject. Done the editing, my file is good and well exported both tiff and jpg. Once the file (.jpg) is uploaded on facebook, the image looks like if a super-low quality file 500px were oversized to 1000px: poor details, no sharp lines. Just a big "mess" think the right way to describe it is Jpeg artifacts. I've followed fb instructions about size and resolution ( 960px low res / 2048px hi res, 72dpi sRGB and less than 100k to avoid additional compression): nope. So I've tried different setup eg png8/png24/gif and tiff: nothing really happened, only .tiff files are slightly better, but still nothing acceptable ( on my test best tiff setup was both 960/2048px long, LZW compression, Image pyramid and Per channel). The same image in each extension without saturation (bw image) has no problem at all.. So, I did some research on google and ok, red colour images do have problems, I know, lossy compression is part of the problem.. facebook convert each image in upload so this is a problem too.. but, how can I solve this situation?? These images need to be uploaded on facebook and now, it is just impossible with this quality. Do any of you have any suggestion?

Thank u

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ManiacJoe

Inspiring

Facebook is a terrible thing to do to pictures.

My recommendation would be to see what size facebook wants to display the image at, then export that size from Lightroom. When an image gets resized, it needs to be resharpened, which I doubt FB is doing.

Rob_Cullen

Community Expert

Facebook has attracted my interest lately-

J.Kost (Adobe) in a video recommends an export resize dimension of Long Edge = 960pixels.

Another Youtube video suggested 2048 or 1024 pixels (because facebook does not compress these sizes badly)

Jarod Platt on CreativeLive always re-sizes with Quality = 100 % (Start with the 'best' before Facebook cuts it down.) In an earlier video suggests pixel size 980.

So is there really a 'correct' answer?

I am still learning the details of publishing with Lr!

Regards. My System: Windows-11, Lightroom-Classic 15.1.1, Photoshop 27.3.1, ACR 18.1.1, Lightroom 9.0, Lr-iOS 10.4.0, Bridge 16.0.2 .

D

danielec8792751Author

Participant

uhmm... ok so there's no a "correct" or "better" export set up in ps/lr, to preserve red color images so fb compression won't destroy everything, right? I've done a little research on fb and google and apparently, all red images have the same problem, no matters about the photographer or post production settings...