discreteness of an image histogram

How to find a discreteness of an image histogram?is there any matlab function for tat ?

Answer 1

[Image Analyst]

Never heard of it. Do you have a definition of " discreteness "?

[christian bale]

it is the summation of all the

absolute differences between any two consecutive bins in a histogram

[Walter Roberson]

There is no direct matlab function to do this, but you can code

sum(abs(diff(hist(DATA))))

[Image Analyst]

Of what practical use is that?

[Walter Roberson]

Dunno. Seems to me the standard deviation of the absolute differences might be more interesting.