split up file name into strings...

Well I have a file name that I need to split up into 2 main parts and then put them into matlab as numbers.

The average name of the file is:

curr_1.564_image_002.tiff

I need:

curr = 1.564

image = 2

Here is what I have right now, this is really ugly way of doing this...

        [~,o,p] = fileparts(fig_dir(1).name);

        [k y] = strtok(o,'_');

        y = y(2:end);

        [curr z] = strtok(y,'_');

        image = z(8:end);

If I can split up this file name into these two parts that is all I need. I was unsure how to do this in MATLAB. Thank you, Chris

Answer 1

[Jan]

And another approach:

name    = 'curr_1.564_image_002.tiff';
numbers = sscanf(name, 'curr_%g_image_%d');

Answer 2

[Image Analyst]

In the absence of anything to suggest the need for anything more general, this code will work for that filename and any others that are the same format and length:

filename = 'curr_1.564_image_002.tiff'

curr = filename(6:10)
imageNumber = filename(18:20)

If things can vary position, then you must say so. Otherwise this will work fine and is the simplest you can get.

% Alternate, more general way
underlineLocations = find(filename == '_')
curr2 = filename(underlineLocations(1)+1:underlineLocations(2)-1)
[folder, baseFileName, extension] = fileparts(filename);
imageNumber2 = baseFileName(18:end)

In your edited/expanded question you're getting them as strings, but just in case you want them as numbers....

% If you want them as numbers instead of strings, use the str2double function
dblCurr2 = str2double(curr2)
intImageNumber2 = int32(str2double(imageNumber2))

By the way, don't use image as a variable name because that's the name of a built-in function.

Answer 3

[Azzi Abdelmalek]

s='curr_1.564_image_002.tiff'
idx=regexp(s,'_')
ii=regexp(s,'.tiff')
curr=str2num(s(idx(1)+1:idx(2)-1))
image=str2num(s(idx(3)+1:ii-1))