This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Red_on_centre_green_off_centre.png(634 × 474 pixels, file size: 48 KB, MIME type: image/png)

Summary

Description
English: 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 area and the receptive fields increase in size from the centre of the retina to the peripheral). This image was processed in Java using a 52-pixel template (contact me for source code). Both types (on centre and off centre) cells are shown in different colours. Here is the original preprocessed image.
Русский: Распознавание границ изображения (краёв, углов) рецептивными полями сетчатки (грубая компьютерная аппроксимация). Размеры рецептивных полей увеличиваются от центра сетчатки к её периферии). Визуальная информация от двух типов клеток (с on- и off-центрами) показана красным и зелёным цветом, соответственно. Автор изображения – User:Simpsons_contributor
Date
Source originally uploaded to the English language wikipedia
Author Own work by Simpsons contributor

Licensing

Public domain This work has been released into the public domain by its author, Simpsons contributor at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
Simpsons contributor grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was on en.wikipedia ( file log). All following user names refer to en.wikipedia.

  • 08:52, 31 May 2009 (UTC) Simpsons contributor 634×474 (48 KB) ({{Information |Description = 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 area)

Information

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

31 May 2009

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current 08:51, 21 March 2011 Thumbnail for version as of 08:51, 21 March 2011634 × 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
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file: