string formatting in MATLAB

Question

I want to ask quite simple question. I'm writing function converting raw image to bmp. Function name is raw2bmp() Now say I want to work with file LENA.raw so I type my function raw2bmp('LENA.raw'). My function produces output bmp image. I want it name LENA.raw.bmp. So the question is how to get file name as an array of symbols?

herohuyongtao · Accepted Answer · 2014-10-07 12:10:09Z

2

You can use sprintf() to format your string, like this:

file_to_save = sprintf('%s.bmp', input_file);

Then you can save the result to file_to_save.

answered Oct 7, 2014 at 12:10

herohuyongtao

50.9k30 gold badges138 silver badges179 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Mykola Servetnyk Over a year ago

I just posted easier way. Sorry to bother.

herohuyongtao Over a year ago

@MykolaServetnyk I prefer to use sprintf(), especially when I want my file name like file_0005.bmp, then I can simply use sprintf('file_%04d.bmp', 5).

kusi · Accepted Answer · 2014-10-07 12:28:30Z

2

function raw2bmp(name)
  fid=fopen(name);
  rawdata=fread(fid);
  %do the conversion of rawdata and save it to bmpdata
  newname=[name '.bmp'];
  imwrite(bmpdata,newname,'bmp');
end

Then you call the function

raw2bmp('LENA.raw')

which saves the bmp image under 'LENA.raw.bmp'

answered Oct 7, 2014 at 12:28

kusi

1972 silver badges7 bronze badges

Comments

Mykola Servetnyk · Accepted Answer · 2014-10-07 12:16:25Z

0

I already found an answer. Maybe it will be useful for someone

function [ img1 ] = raw2bmp( in_file );

out_name = [in_file '.bmp'];

answered Oct 7, 2014 at 12:16

Mykola Servetnyk

17210 bronze badges

Collectives™ on Stack Overflow

string formatting in MATLAB

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related