With histogram equalisation, DN values are assigned
A) as their frequencies of occurrence
B) based on their frequencies of occurrence
C) as their original DN values divided by their frequencies of occurrence
D) as their original DN values multiplied by their frequencies of occurrence

Question

Quizplus · Accepted Answer

Histogram equalisation is a process in which an image's histogram is adjusted to enhance its contrast. This is achieved by reassigning the DN values based on their frequencies of occurrence, such that low frequency values are mapped to higher intensity levels and high frequency values are mapped to lower intensity levels. As a result, the frequency distribution of the image is stretched out, making it easier to distinguish between different objects in the image.

With Histogram Equalisation, DN Values Are Assigned