How to append underscore to name of image?

Hi

How to append underscore to the variable name or name of image?Eg:a_20.how to a concatenate 'a' and '_'='a_'

Answer 1

[Iain]

You can concatenate strings:

['hello' ' ' 'world' '_' 'a' '.jpg']

['name' '_' num2str(number)]

etc.

Answer 2

[Matt J]

You don't enumerate different images this way, if that's what you mean. You use cell arrays or multi-dimensional indexing

 a(:,:,20) = theImage;

or

 a{20} = theImage;

If that's not what you mean, please clarify. It seems like it should be very easy to modify the name of the variable, just by assigning to the new name and clearing the old one if needed

 a_=a; clear a