how to insert elements in listbox?

how can i insert list of images into listbox?? I have a folder containg images and i want to insert list of images into the listbox

Answer 1

[Chandra Kurniawan]

Hi, Usama.

Maybe you are seeking for something like this?

In the openingfcn

function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
files = dir(fullfile(pwd,'Folder01','*.png'));
for x = 1 : length(files)
    handles.images{x} = imread(fullfile(pwd,'Folder01',files(x).name));
end
set(handles.listbox1,'string',{files.name});
guidata(hObject, handles);

In the listbox1 callback

function listbox1_Callback(hObject, eventdata, handles)
handles.output = hObject;
index = get(handles.listbox1,'value');
imshow(handles.images{index});
guidata(hObject, handles);

You can also change the image extention by replacing png with another extention

Eq: files = dir(fullfile(pwd,'Folder01','*.jpg'));

And if it is DICOM files

files = dir(fullfile(pwd,'Folder01','*.dcm'));
for x = 1 : length(files)
    handles.images{x} = dicomread(fullfile(pwd,'Folder01',files(x).name));
end

I hope this helps.

[Usama Javed]

thank you so much sir,

is this openingfcn is any callbackfcn or user created fcn???

[Usama Javed]

i got it.. :)

[Usama Javed]

i want to loaddir thorugh browse button...

i mean there is a browse button when i click that button than those images should be loaded into the listbox...

can u tell me that plz...

[Chandra Kurniawan]

Hi, Usama :)

Just little hint : uigetdir

http://i1196.photobucket.com/albums/aa410/nasa078/Mathworks/uigetdir01.jpg

[Usama Javed]

i have used it sir,but its not showing in the listbox

handles.output=hObject;

dirr=uigetdir('C:\Users\Asad\Documents\MATLAB\','Select a Case')

files = dir(fullfile(pwd,dirr,'*.dcm'));

for x=1 : length(files)

handles.images{x}= dicomread(fullfile(pwd,'Case1',files(x).name));

end

set(handles.listbox1,'string',{files.name});

guidata(hObject, handles);

[hush puppy]

hi @chandra, i've used the code provided above..but im getting this error: 'Cell contents assignment to a non-cell array object'. Can you tell me what went wrong? All I get is a blank listbox.

[Image Analyst]

Try

for k = 1 : length(files)
  listboxItems{k} = files(k).name;
end
set(handles.listbox1, 'String', listboxItems);

[hush puppy]

@image analyst, i've tried your code..this code seem to display all my file names now..but the image is not appearing on my handles.images when I click on it..

Answer 2

[Chandra Kurniawan]

In openingfcn

function untitled_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;
handles.cdir = pwd;
set(handles.listbox1,'enable','off');
guidata(hObject, handles);

In pushbutton callback

function pushbutton1_Callback(hObject, eventdata, handles)
handles.output = hObject;
fn = uigetdir(handles.cdir,'Select directory');   
if fn ~= 0   
    handles.cdir = fn;    
    img = dir(fullfile(handles.cdir,'*.png'));
    for x = 1 : length(img)
        handles.I{x} = imread(fullfile(handles.cdir,img(x).name));
    end   
    if length(img) ~= 0, set(handles.listbox1,'enable','on');
    else,                             set(handles.listbox1,'enable','off'); 
    end
    set(handles.edit1,'string',handles.cdir);
    set(handles.listbox1,'string',{img.name});    
end
guidata(hObject, handles);

In listbox callback

function listbox1_Callback(hObject, eventdata, handles)
handles.output = hObject;
index = get(handles.listbox1,'value');
imshow(handles.I{index});
guidata(hObject, handles);

%

[Usama Javed]

So kind of you sir, thank you, works great

[Usama Javed]

how can i put a static image on my interface, for example if i want to put a logo on my interface than ??

[Chandra Kurniawan]

Just the same idea.

Use small axes in the top corner of your interface.

Then call the logo image with imread from your directory in opening fcn.

[Walter Roberson]

http://www.mathworks.com/support/solutions/en/data/1-19J7T/

[Elysi Cochin]

sir i wanted one more listbox in my GUI... the same code when written... listbox1's image1 is showing listbox2's image... but listbox2's images are being displayed correctly... can u rectify my error.... same way i wanted to swap the contents of 2 listboxes.... and also i wanted same contents of listbox1 in listbox2.... please do reply me.....

[Walter Roberson]

Please start a new Question for this, and show your code in that new Question.

[Elysi Cochin]

hi, chandra, one doubt, in addition to the listbox and axes.... i have two buttons also.... one named "DELETE" and the other named "RESTORE".....

in the DELETE button when i select a particular item from listbox that name gets deleted from the listbox and the corresponding image gets deleted from the folder....

on click of the RESTORE button all the delete images should get displayed in a figure file and added back to the folder.....

please can u help me do this option.....

i tried, its working when only one image is deleted..... if i delete more than one item, only the last deleted item is getting restored..... can u help me sort it out.....

Answer 3

[Image Analyst]

I don't know how to put images into listboxes. You can put the name of the image files into the listboxes (like Titus showed you) but you can't put the images themselves in with MATLAB only. However, you can put an ActiveX control onto your GUI, and there are third party ActiveX controls that can have images in a listbox, such as ( http://www.atalasoft.com/products/dotimage/winforms). Or you can use Microsoft's "ListView" control: http://msdn.microsoft.com/en-us/library/ie/bb398790.aspx. Scroll down the page about half way until you see the listbox with pictures of bicycles in it.

Answer 4

[Titus Edelhofer]

Hi Usama,

something like the following:

files = dir(fullfile(theFolder, '*.jpg'));
set(handles.listbox1, 'string', {files.name})

Titus