File:JPG compression of printing texture.png

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Original file ‎(818 × 482 pixels, file size: 33 KB, MIME type: image/png)

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Description
English: Close zoom of an image with a high-frequency, regular, pattern of printing texture interacting with the block size of the JPG algorithm to produce noise that's "large" in both spatial and color extent.
Date
Source https://babel.hathitrust.org/cgi/pt?id=nyp.33433082198072&view=1up&seq=6&skin=2021
Author Unknown photographer
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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:JPG_compression_of_printing_texture.png

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Date/TimeThumbnailDimensionsUserComment
current21:55, 24 July 2021Thumbnail for version as of 21:55, 24 July 2021818 × 482 (33 KB)Inductiveload (talk | contribs){{Information |Description={{en|1=Close zoom of an image with a high-frequency, regular, pattern of printing texture interacting with the block size of the JPG algorithm to produce noise that's "large" in both spatial and color extent.}} |Source=https://babel.hathitrust.org/cgi/pt?id=nyp.33433082198072&view=1up&seq=6&skin=2021 |Date= 1922 |Author={{unknown artist}} |Permission={{PD-US-expired}} |other_versions= }}

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