Wikipedia

Picture function

A picture function is a mathematical representation of a two-dimensional image as a function of two spatial variables.[1] The function f(x,y) describes the intensity of the point at coordinates (x,y).

References

  1. ^ "Meaning and Function of a Picture, Published by:Taylor & Francis, Ltd. on behalf of the Mathematical Association of America, DOI: 10.2307/2301228on Jstor.Org".

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