How to retrieve a word from a filename

name:"rgb_watermark_lena.jpg"

I want to retrieve only "lena" word from file

It should be "lena.jpg"

Can any one sort out this problem

Answer 1

[Jakob Sørensen]

name = 'rgb_watermark_lena.jpg';
name(end-7:end-4)

ans =

lena

You probably get the point :)

Answer 2

[Neil Caithness]

It rather depends on how general you want it. Here's another example that may help you decide.

filename = 'rgb_watermark_lena.jpg';
[~, name, ext] = fileparts(filename);
nameparts = regexp(name, '_', 'split');
newfilename = fullfile([nameparts{end} ext])