Human visual system electronic imagers

Perceiving the environment the human visual system and electronic imagers... 

In electronics, the Fourier transform of the impulse response is defined as the transfer function. Analogously in imaging, S(co)r should be imaging or optical transform function (OFF). However, it is customary to normalize the OTF by its maximum value, so that the normalized OFF varies between unity and zero. Except for the human visual system, S(co)r is maximum when cor=0 and decreases as spatial frequency increases. Fhe magnitude of the optical transform function is called the modulation transfer function (MFF). In other words,... 

ISO 9241-302 2008 ergonomics of human-system interaction—part 302 terminology for electronic visual displays Image formation time, monitor coordinate system, luminance contrast... 

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