suggest me suitable name for documentation?

Question

somasekar jalari 2015-9-28

评论： Image Analyst 2015-9-30

Consider an image f(x,y). I calculated the maximum and minimum intensity values of an image with the following operations:

k=max(f(x,y))-min(f(x,y));
p=max(f(x,y))-min(f(x,y));
m=k/p;

Suggest to me suitable name for k,p,m values.

For example: k is image global gradient etc.,

Thanks in advance.

Answer 1

Image Analyst 2015-9-28

Note, it should be (y,x) not (x,y) since row is the first index in matrices. Anyway, k should be

k = max(f(:)) - min(f(:));

I'd call k "dynamic range". Since your p is the same as k, I'd also call p "dynamic range." And I'd call m "one" since that's what it is.

somasekar jalari 2015-9-30

编辑：Image Analyst 2015-9-30

Thank u sir for response. sorry for small correction, in P. Now,

p=max(f(x,y))+min(f(x,y));
k=max(f(x,y))-min(f(x,y));
m=k/p;

now suggest me suitable title for p and m sir. but k is 'dynamic range' looking forward your reply.

thanks in advance.

Image Analyst 2015-9-30

k is twice the amplitude.

p is twice the mean signal level.

m is a common formula for contrast.