Why the discrete histogram equalization technique does not, in general, yield a flat histogram?

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Martín Martínez Villar

In fact, equalization is used to get a flat histogram independently of continuous or discrete distribution values, so what type of EQ you mean?

https://en.wikipedia.org/wiki/Histogram_equalization

Davor Antonic

That is an effect of discretization. Discrete histogram is an approximation of continuous probability density function and no new intensity levels are created in equalization process.