Commons:Graphics village pump/February 2013
Saving and uploading TIFFs
So I've just started doing restorations of old photos and I'm fine with the actual restoration part but I'd like some advice on TIFF files (which I haven't worked much with before) and the best practice for uploading the restored photo.
- So firstly, the original Library of Congress TIFF file is not on Commons yet. It is 92MB. Should I upload that or should I open it up in Photoshop, resave it as a compressed TIFF and then upload that instead?
- When saving the restored photo (and the original file if I should resave it) in Photoshop CS6 as a TIFF file, what settings do I use? There are options for Image Compression, Pixel Order, Byte Order, Save Image Pyramid and Layer Compression.
- Although it isn't possible with this particular file (since the filesize would exceed 100MB), in general, should I save the TIFF file with all my progress layers and adjustment layers? It is also possible to (since I didn't delete the cropped pixels) save the file with the cropped pixels intact, allowing someone to later restore the cropped areas. Should I do this or is this all excessive and should I just save only the final flattened image as the TIFF?
- You can see what other people have done at File:Love or dutyb.jpg, File:Belle of Nelson sour mash whiskey pga03041u edited.jpg, File:Great presidential puzzle2.jpg, etc. Uploading the original Library of Congress TIFF is optional, but if you upload a lossless version of your edited file, in my opinion it should not be in TIFF format, but rather in PNG... AnonMoos (talk) 10:13, 3 February 2013 (UTC)
File:Layla and Majnun2.jpg: Featured pictures gone wild
The file File:Layla and Majnun2.jpg, which is a featured picture on Commons and three Wikipedias, somehow has a bright cyan overtone. I have been unable to find a reason for this and I doubt it would have passed in its current condition. Anybody know how to fix it? Crisco 1492 (talk) 05:31, 13 February 2013 (UTC)
- Cross posting from the Help desk as it seems this may be too technical for that venue. I've checked the image on both Firefox and Chrome, and I'm getting nothing. Since this was a submission to POTY and all sorts of quality image programmes, it's obvious that the overtone was not there at the time. It may have something to do with the colour profile, as File:Layla and Majnun2 without color profile.jpg is showing up no problem.Crisco 1492 (talk) 13:05, 13 February 2013 (UTC)
- I see the same problem, so it is independent of a computer, or a user system. Yann (talk) 15:29, 13 February 2013 (UTC)
- The thumbnail of the original version doesn't display in my browser at all (I got tired of waiting for it to start to load); the thumbnail of the no-profile version displays fine. AnonMoos (talk) 20:54, 13 February 2013 (UTC)
- This was caused by an embedded "Phase One P 25 Product Flash" color profile. I stripped it using
convert +profile "*icc*" in.jpg out.jpg. The fact that it wasn't noticed before is probably down to changed browser behavior. Most browsers used to ignore color profiles in past years. If there's a good reason to keep the profile in, feel free to revert my change and change the uses to point to the other version without the color profile. For now, I thought it was best to update the most widely used version to one that's not going to look horrible for most people. —LX (talk, contribs) 23:18, 13 February 2013 (UTC)
Your first upload looks fine (to me), but the second one is still cyan.Crisco 1492 (talk) 23:42, 13 February 2013 (UTC)No, that was my cache.Crisco 1492 (talk) 23:43, 13 February 2013 (UTC)