Question of the Day
The human eye can see a hundred shades of grey.
The human eye can detect different shades of grey depending on its brightness. 1% of brightness is enough for the human eye to recognise a different shade.  More »
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Web Results
www.ncbi.nlm.nih.gov/pmc/articles/PMC3043920/
29 Dec 2006 ... In other words, how many grayscales can a human observer see in ... The Barten model is based on experimental data in which the eye is ...
www.answers.com/Q/How_many_different_shades_of_grey_can...
A healthy human eye can distinguish between 500 different shades of grey. ... Obviously, they can see all colours, and if you think about how many shades they  ...
www.answers.com/Q/How_many_shades_of_gray_can_the_human...
The number of shades of gray that can be seen depends on the ambient light and the field of view. For example, I recently ran displaymate video software on a ...
forums.anandtech.com/showthread.php?t=1761980
2.6 How many gray levels can the eye distinguish? ... Both the size of human brightness JND?s and the screen gamma change with viewing ...
www.dentalxrays.info/blog/more-50-shades-grey
13 Jun 2012 ... Furthermore, the actual number of meaningful shades of grey is difficult to ... on the human observer as much as the quality of the actual image. The human vision can only distinguish between 32-64 shades of grey at any time ...