File:Bentham head - moire - desaturated luminance.png

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Bentham_head_-_moire_-_desaturated_luminance.png (649 × 584 pixels, file size: 439 KB, MIME type: image/png)

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Description
English: An engraved image with coloured moire "waves". This is used to illustrate ways to correct it. This image has been desaturated by luminance in GIMP and the moiré pattern is still visible.
Date
Source https://babel.hathitrust.org/cgi/pt?id=mdp.39015004284488&view=1up&seq=9
Author H. W. Pickersgill
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  • With moire
    With moire
  • Desaturated by luminance - bands visible
    Desaturated by luminance - bands visible
  • Desaturated by HSV value - bands less visible
    Desaturated by HSV value - bands less visible


Public domain

The author died in 1875, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.

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.

This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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Date/TimeThumbnailDimensionsUserComment
current06:35, 16 December 2020Thumbnail for version as of 06:35, 16 December 2020649 × 584 (439 KB)Inductiveload (talk | contribs){{Information |Description={{en|1=An engraved image with coloured moire "waves". This is used to illustrate ways to correct it. This image has been desaturated by luminance in GIMP and the moiré pattern is still visible.}} |Source=https://babel.hathitrust.org/cgi/pt?id=mdp.39015004284488&view=1up&seq=9 |Date=1843 |Author=H. W. Pickersgill |Permission= |other_versions=<gallery> File:Bentham_head_-_moire.png|With moire File:Bentham_head_-_moire - desaturated luminance.png|Desaturated by luminan...

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