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 | | Note also that our perception of intensity is nonlinear, with changes of normalised intensity from 0.1 to 0.11 and from 0.5 to 0.55 being perceived as equal changes in brightness[2]. |
 | | In other words, the perception of colour is an entirely arbitrary creation of our nervous system, and is in no way contained in the wavelengths themselves[4]. |
 | | Figure 8: Image (a) shows a colour test pattern, consisting of horizontal stripes of fl, blue, green, cyan, red, magenta and yellow, a colour ramp with constant intensity, maximal saturation, and hue changing linearly from red through green to blue, and a greyscale ramp from fl to white. |
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