User talk:Historian 1875

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Welcome to Wikimedia Commons, Historian 1875!

-- Wikimedia Commons Welcome (talk) 20:26, 22 May 2023 (UTC)[reply]

Source and license changes of late

[edit]

I'm afraid to say (with respect) that this image has the wrong attribution. The author is Piesse & Lubin, if not The Graphic, and the license is worked out accordingly. Changing the colour of it, cleaning it up, even scanning your own copy, and republishing it, doesn't change the original attribution or source, and never will.

As it happens neither this file or the original tiff, are likely to be the original published colour.

Also I'm curious to know why you are converting tiff files to png, my take on the matter, is that the optimal conversion is to jpg. Which is lightest in weight and friendliest to websites, and doesn't lose defintion.

I do understand, that you have invested, time and study in your decisions, and respect the effort. Regards Broichmore (talk) 10:06, 19 January 2024 (UTC)[reply]

Thank you for your message @Broichmore. I will be able to respond tomorrow. Historian 1875 (talk) 18:21, 21 January 2024 (UTC)[reply]
I can see that you have made a large number of contributions to Wikimedia Commons and likewise I respect the effort that you put in.
I understand that you are a fan of JPEG for your own scanned uploads. PNG and JPEG both have their strengths. However, in most scenarios involving scans of newspaper sources, PNG is my preference over JPEG.
The reason for my preference for PNG over JPEG is that the JPEG format uses lossy compression. Every time you save a JPEG file information is lost. PNG is a lossless format and unlike JPEG image quality is not lost through compression. However, if a file already is in JPEG format, then the quality cannot be improved by converting to PNG, the loss of quality is permanent. The Wikimedia Help:Scanning section states that “Best practice: When possible, upload a PNG file as a lossless archival version”.
Ultimately it is up to the uploader which format they feel is most suitable for their scans and Wikimedia provides for both formats. Historian 1875 (talk) 21:27, 22 January 2024 (UTC)[reply]