Translation of "visual system" into Icelandic

5.8. Colour appearance is arranged around opponent colours; red versus green, and blue versus yellow. This colour opponency involves further reprocessing of the cone signals from cone-opponent processes into colour-opponent processes.

5.9. The visual system tries to disentangle the properties of surfaces in the world (e.g., the ‘red’ colour of a strawberry) from the properties of the illuminants (e.g., the ‘golden’ light of evening), even though surface and illuminant information are combined in the input to the eyes. Mechanisms of colour constancy use implicit knowledge about the world to correct for the influence of different illuminants and to keep that strawberry looking red under a wide range of conditions.