Eigengrau - Revision history

Karl Jones at 17:53, 6 September 2016

2016-09-06T17:53:15Z

Karl Jones at 17:52, 6 September 2016

2016-09-06T17:52:34Z

Karl Jones: /* External links */

2016-04-24T19:06:04Z

‎External links

Karl Jones: Created page with "'''Eigengrau''' (German: "intrinsic gray" / literally: "own gray"), also called '''Eigenlicht''' ("intrinsic light"), '''dark light''', or '''brain gray''', is the uniform dar..."

2016-02-18T12:22:57Z

Created page with "'''Eigengrau''' (German: "intrinsic gray" / literally: "own gray"), also called '''Eigenlicht''' ("intrinsic light"), '''dark light''', or '''brain gray''', is the uniform dar..."

New page

'''Eigengrau''' (German: "intrinsic gray" / literally: "own gray"), also called '''Eigenlicht''' ("intrinsic light"), '''dark light''', or '''brain gray''', is the uniform dark gray background that many people report seeing in the absence of [[light]].

== Description ==

The term ''eigengrau'' dates back to the nineteenth century, but has rarely been used in recent scientific publications.

Nowadays the phenomenon is more commonly referred to as "visual noise" or "background adaptation".

''Eigengrau'' is perceived as lighter than a black object in normal lighting conditions, because [[contrast]] is more important to the [[visual system]] than [[absolute brightness]].

== Night sky darker than ''eigengrau'' ==

For example, the night sky looks darker than [[eigengrau]] because of the contrast provided by the stars.

== See also ==

* [[Darkness]]
* [[Light]]
* [[Visual perception]]

== External links ==

* [https://en.wikipedia.org/wiki/Eigengrau Eigengrau] @ Wikipedia

← Older revision		Revision as of 19:06, 24 April 2016
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	* [https://en.wikipedia.org/wiki/Eigengrau Eigengrau] @ Wikipedia		* [https://en.wikipedia.org/wiki/Eigengrau Eigengrau] @ Wikipedia
		+
		+	[[Category:Light]]
		+	[[Category:Perception]]

@@ Line 7: / Line 7: @@
 Nowadays the phenomenon is more commonly referred to as "visual noise" or "background adaptation".
-''Eigengrau'' is perceived as lighter than a black object in normal lighting conditions, because [[contrast]] is more important to the [[visual system]] than [[absolute brightness]].
+''Eigengrau'' is perceived as lighter than a black object in normal lighting conditions, because [[Contrast (vision)|contrast]] is more important to the [[visual system]] than [[absolute brightness]].
 == Night sky darker than ''eigengrau'' ==
@@ Line 15: / Line 15: @@
 == See also ==
 * [[Darkness]]
 * [[Gray]]

@@ Line 1: / Line 1: @@
-'''Eigengrau''' (German: "intrinsic gray" / literally: "own gray"), also called '''Eigenlicht''' ("intrinsic light"), '''dark light''', or '''brain gray''', is the uniform dark gray background that many people report seeing in the absence of [[light]].
+'''Eigengrau''' (German: "intrinsic gray" / literally: "own gray"), also called '''Eigenlicht''' ("intrinsic light"), '''dark light''', or '''brain gray''', is the uniform dark [[gray]] background that many people report seeing in the absence of [[light]].
 == Description ==
@@ Line 16: / Line 16: @@
 * [[Darkness]]
 * [[Light]]
 * [[Visual perception]]