How to know the smallest number after 0

Hi all, I have set images 3D (256x256x90 uint16), let say P. Anyone know how to know the smallest number after 0?

>> min(min(min(P)))

ans =

uint16

0

>> max(max(max(P)))

ans =

uint16

1387

[David Goodmanson]

Hi mohd,

see 'help eps' for a list

Answer 1

[Voss]

The smallest uint16 number after zero is one.

[mohd akmal masud]

yes, the smallest is 0, but I want to know after 0, what is the number?

[Voss]

After 0 is 1, since we are talking about the integer type uint16.

[Voss]

If you want to find the smallest number greater than 0 that is in your image data, you can do this:

min(P(P > 0))

Answer 2

[Chunru]

P = randi([0 65535], [5 5 10], 'uint16');  % smaller size for demonstration
P1 = P(:);
min(P1(P1>0))

ans = uint16 141

[mohd akmal masud]

sir, what is [5 5 10] ?