MATLAB: Load an image which i choose from a spesific folder

gui button imread image from a folder

I'm building a GUI in which i have a button that i want to load an image from specific folder.But i don't want a specific image.I want to have the choise to choose one image that i want(not multiple images just one).Is there any way to push that button open me the folder and choose my image? Images files must be (.bmp) Thanks a lot

Best Answer

Hello Thanos!

In your GUI add a EditText (Tag edit1) and a Push button (Tag pushbutton1). Right click over the push button and select View Callbacks/Callback. On the pushbutton1_Callback write something like this:

%Open dialog box and select and image from it
[filename,filepath]=uigetfile({'*.bmp'},'Select and image');
%Set the value of the text field edit1 to the route of the selected image.
set(handles.edit1, 'String', strcat(filepath, filename));

Regards,

Related Solutions

MATLAB: How to input the image as input to the GUI.

    [filename, pathname] = uigetfile('*.png', 'Select an image?');
    if ~ischar(filename); return; end      %user cancelled
    filepath = fullfile(pathname, filename);
    Img = imread(filepath);

MATLAB: How to create a folder in GUI

Mehdi - you need to describe the steps that the user would follow when using your GUI. Does he/she

select some files for cropping
crop the images
press a button to save the cropped images
select a (new) folder to those cropped images

Or does the above occur in some other order? You have supplied a callback for a textfield, which seems to have the code for creating a directory, and then crops the images. It is unclear though why or how this textfield is to be used - why should its callback (and not a button?) be used to create the directory and crop the images? As well, are the directory and Cropbillede functions in separate m files, or declared within the GUI?

From your directory function, you do the following

 function handles = directory( handles )
   direct = uigetdir(pwd, 'Select Directory');
   handles.myData.direct = direct;
 end

So the user selects a directory (new or existing) and the value gets saved to the handles.myData.direct field. The updated handles gets returned and in the textfield callback the structure is saved using guidata. Then Croppbillede is called and has two blocks of code where data is written

 SequenceName = 'CroppedBone' ;
 for k = 1:length(ImagesToRead)
    ExportedName = sprintf('%s%03d.tif',SequenceName,k); 
    % Add the frame # after the name
    imwrite(CroppedImageCell{k}...
    ,ExportedName,...
    'tif','WriteMode','overwrite','Compression','none');
 end
 for k = 1:length(ImagesToRead)
    imwrite(CroppedImageCell{k},handles.myData.direct,SequenceName,...
        'tif','WriteMode','append','Compression','none'); 
        % Note the "append" writing mode.
 end

The first block seems to be writing a number of images to file, all whose name is something like CroppedBoneXYZ.tig where XYZ is a three digit number. But you don't specify the directory/folder for these files. Should the folder be that which was selected from the directory function? If so, then replace your ExportedName initialization with

 ExportedName = fullfile(handles.myData.direct,sprintf('%s%03d.tif',SequenceName,k));

which will add the directory to ExportedName and so the files should be saved there.

In your second for loop, you don't specify a file per se, but seem to expect that the same image (?) will be appended to the existing file since you are providing the directory to save the file and the SequenceName which is just CroppedBone. I suspect that this block would cause an error to be thrown - are you not observing this?

I suggest that you comment out the second for loop and check to make sure that the first for loop (once updated with the directory/folder to save the files) is working correctly, and then decide whether you need this extra code or not.

Best Answer

Related Solutions

MATLAB: How to input the image as input to the GUI.

MATLAB: How to create a folder in GUI

Related Question