File:Red on centre green off centre.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	08:51, 21 March 2011		634 × 474 (48 KB)	JeanneMish	{{Information \|Description ={{en\|1=An example of edge detection using an emulation of retinal receptive fields. This is what the output of the optic nerve would look like (as a very rough approximation: the fovea is an almost 1:1 high definition visual

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