Commons talk:Media restoration

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Can multiple versions of an image be useful for restoration?[edit]

Among the many images by Wenceslas Hollar that I've uploaded are a number of images with several nearly-identical prints, or sometimes even multiple scans of the same image. Although I've so far chosen not to delete any of these redundant versions, except in cases where one is of exceptionally poor quality, I wonder, does having multiple versions available make restoration work easier? Thanks. Dcoetzee (talk) 01:18, 24 March 2009 (UTC)

Suggest you ask the uploader the reason for these. Regarding your general question, for restoration work it does make sense to have additional files. Each one would serve a specific purpose, and should contain explanation notes in the 'other versions' line. Thanks for asking. :) Durova (talk) 03:58, 24 March 2009 (UTC)
Well I am the uploader. :-) The reason there are multiple versions is because the source collection at the University of Toronto had multiple versions. The reason they did is that many of the images are print reproductions of the original work from various different sources; or they may have scanned the image multiple times because they didn't like the way the first scan turned out. Occasionally, one of the alternate prints was modified by a later illustrator. I do need to fill in the "other versions" field properly though. Dcoetzee (talk) 04:23, 24 March 2009 (UTC)
That makes sense. Would it be possible to get uncompressed versions of those files? Some of those could be good restoration projects. Best, Durova (talk) 14:58, 24 March 2009 (UTC)
Unfortunately, no - they charge for full-resolution uncompressed versions. They charge $25 an image for raw 600 dpi TIFFs, so this may be an option for particularly high-value images, but not for all of them. The best I could do was extract high-resolution JPEGs from their website automatically, many of which are the full 600 dpi, but still have some loss. Dcoetzee (talk) 18:32, 24 March 2009 (UTC)

Discussion: the characteristics of an appropriate and a best practices based restoration[edit]

When media files are digitally restored, the quality of the work involved can only be assessed when the original scan is available. When a restoration is performed, there may be different moments when changes are made that cannot be reverted. In order to allow for restorations to be a collaborative effort, it is recommended when in between files are retained on Commons. The original file and the work files are not to be compressed. The end result may be available in a compressed format for sharing with other projects.

The main purpose of Commons is to provide illustrations to WMF projects. This means that we seek in our restorations to provide great illustrations. Typically the effects of age detract from the value as an illustration.

At Wikiversity Durova is writing a course on Image restoration, this will present the technical aspects of restorations in a "how to" approach. The technical arguments why a particular restoration is not sound can be derived from the Wikiversity course.

NB This is my personal approach to this issue. Thanks, GerardM (talk) 15:09, 24 March 2009 (UTC)

Suggested for restoration[edit]

I recently uploaded quite a few high res photographs to Category:National_Portrait_Gallery,_London. Among these are a number of photos of the famous author Aldous Huxley by Lady Ottoline Morrell (died 1938, so public domain). But they're in pretty terrible shape, and weren't great pictures in the first place. And chance one of you guys might be interested in restoring one or more of them? The current image used in his article is worse even than these. Dcoetzee (talk) 01:24, 1 April 2009 (UTC)

Help for restoration[edit]

Hello, That's one of the best image of this time and people we have. Yann (talk) 20:40, 17 April 2009 (UTC)

Old color pictures[edit]

New template[edit]

Hello,

I created the template {{Restoration}}. Thanks, Yann (talk) 23:00, 20 April 2009 (UTC)

Restoration guidelines[edit]

Hey guys, I did a little clean up and restoration work for an illustrated Alice in Wonderland a little while ago (e.g.) and I'd like to upload the lossless versions for future editing by others. Is there a protocol to follow for this? Naming conventions, linking templates or notices? – Quoth (talk) 14:36, 10 August 2010 (UTC)