MATLAB: I have a problem with reading .JPG images.

.jpgMATLAB

Error using imread>get_full_filename (line 516)

File "filtru.jpg" does not exist.

Error in imread (line 340)

fullname = get_full_filename(filename);

Error in surse (line 35)

Imag=imread('filtru.jpg');

Best Answer

Try this in surse.m

folder = pwd;  % Current folder.  Change to whatever you need.
fullFileName = fullfile(folder, 'filtru.jpg')
if exist(fullFileName, 'file')
    Imag=imread(fullFileName);
else
    warningMessage = sprintf('File does not exist:\n%s\nCheck folder and spelling', fullFileName);
    uiwait(errordlg(warningMessage));
end

Tell me what happens.

If your file is not found, make sure your folder is right. If it's in C:\myphotos, then do

folder = 'D:\myphotos';

or wherever it really lives.

Related Solutions

MATLAB: Does image reading is wrong?fullFilename contains the path of the image along with image extension

Well what would you want it to contain? It sounds right to me. However this is wrong:

img=imread('fullFileName');

It should be without quotes. When you added single quotes around it, that make a literal string - the string was 'fullFileName' instead of 'F:\My Images\foobar.png' or whatever. Here is the fix:

img=imread(fullFileName);

MATLAB: Read images from folder

See the code snippet in the FAQ:

https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Which you'd adjust like this:

% Specify the folder where the files live.
myFolder = fullfile(pwd, '..\TRAINING SET');
% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder);
    uiwait(warndlg(errorMessage));
    myFolder = uigetdir(); % Ask for a new one.
    if myFolder == 0
         % User clicked Cancel
         return;
    end
end
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.BMP'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    % Now do whatever you want with this file name,
    % such as reading it in as an image array with imread()
    imageArray = imread(fullFileName);
    imshow(imageArray);  % Display image.
    drawnow; % Force display to update immediately.
end

Best Answer

Related Solutions

MATLAB: Does image reading is wrong?fullFilename contains the path of the image along with image extension

MATLAB: Read images from folder

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