split up file name into strings...

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Chris E.
Chris E. 2012-11-18
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

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采纳的回答

Jan
Jan 2012-11-19
编辑：Jan 2012-11-19
And another approach:
name = 'curr_1.564_image_002.tiff';
numbers = sscanf(name, 'curr_%g_image_%d');

更多回答（2 个）

Image Analyst
Image Analyst 2012-11-18
编辑：Image Analyst 2012-11-18
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.
Azzi Abdelmalek
Azzi Abdelmalek 2012-11-18
编辑：Azzi Abdelmalek 2012-11-18
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))

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