Image: Red geranium photopic mesopic scotopic
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Description: Simulation of mesopic and scotopic visual appearance from a photopic (full-color) original of a red geranium with greenery and blue in the background, to illustrate the Purkinje effect or Purkinje shift.
Title: Red geranium photopic mesopic scotopic
Credit: Own work based on: Red geranium 3.jpeg: by Collard
Author: Dick Lyon (original by Lewis Collard)
Permission: See below.
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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