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Multi-parameter images
From Computer Vision Primer
It is a function from the rectangle (in 2D) to the parameter space which is usually an array.
Parameter spaces:
- Binary Images: {0,1} (1 parameter)
- Gray scale images: {0,...,255} (1 parameter)
- Color Images: {0,...,255} x {0,...,255} x {0,...,255} (3 parameters)
For videos add another parameter (time).
Also "Almost all physical units can be used to make images and multivariate images: temperature, gravitational field, impedance, magnetic field, electrical field, mass, wavelength, ultrasound wavelength, polarization, electron energy etc." [1].
