Key Cap­ture NX-D terms

NPhoto - - Nikopedia -

Lumin ance nois e

This is ran­dom vari­a­tion in the bright­ness of ad­ja­cent pix­els. Any soft­ware finds it dif­fi­cult to sep­a­rate this from ac­tual im­age de­tail, and so re­duc­ing lu­mi­nance noise usu­ally means los­ing some sub­tle de­tail.

Colo ur nois e

This is a ran­dom vari­a­tion in the colour of ad­ja­cent pix­els. This is less likely to rep­re­sent real de­tail, so it’s rel­a­tively straight­for­ward to cor­rect.

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