imwrite "the filename must be provided issue"

Hi ,

I am trying to read a video file and store the frames in a folder . The imwrite is giving me a "a filename must be provided error".This is my program:

filename = [sprintf("%03d L",ii) '.jpg'];

fullname = fullfile(workingDir,'images',filename);

imwrite(leftone,fullname) ;

Please help

[Mohammad Sami]

your filename assignment is creating two strings.

you can replace it with the following

filename = sprintf('%03d L.jpg',ii);

[Image Analyst]

Can you make this an answer? That way you can earn reputation points for it, unlike up here in the section which is used to ask posters for additional information.

Answer 1

[Image Analyst]

The problem is you used double quotes in the first part and single quotes in the second part which make two strings. Try this corrected code:

% Initialize some variables.
leftone = imread('cameraman.tif');
ii = 1
workingDir = pwd; % The current folder.

% Now Jishnu's code, corrected and made more robust.
outputFolder = fullfile(workingDir, '/images');
if ~isfolder(outputFolder)
	mkdir(outputFolder);
end
baseFileName = sprintf('%03d L.jpg',ii)
fullFileName = fullfile(outputFolder,baseFileName)
imwrite(leftone, fullFileName);