MATLAB: How to save webcam image in gui to a certain folder without push button

guiImage Acquisition Toolboximsave in guipushbuttonsave imagewebcam

I have interfaced webcam with matlab gui and able to take images. I have two push buttons Preview & Take Image. I want to take image with "Take Image" push button & my taken images to be stored with my desired names and folder as we do in imsave normally but here I am unable.Can anyone help me, the closest was below but it is introducing new push button.
https://se.mathworks.com/matlabcentral/answers/9564-i-need-gui-save-as-button-for-an-image-in-a-figure-please
function pbTP_Callback(hObject, eventdata, handles)
vid = videoinput('winvideo', 1, 'YUY2_1024x768');
vid.FramesPerTrigger = 1;
vid.ReturnedColorspace = 'rgb';
triggerconfig(vid, 'manual');
vidRes = get(vid, 'VideoResolution');
imWidth = vidRes(1);
imHeight = vidRes(2);
nBands = get(vid, 'NumberOfBands');
hImage = image(zeros(imHeight, imWidth, nBands), 'parent', handles.axPreview)
preview(vid, hImage);
start(vid); 
pause(5); 
trigger(vid);
stoppreview(vid);
im1 = getdata(vid);
imwrite(im1, 'myimage.jpg');

Best Answer

snowleopoard - Did you get an error message when you tried to save the file, and if so, what was it?
I suspect that the above error is when you pressed the Take Image button a second time. Is that the case? If so, the problem is probably due to
 vid = videoinput('winvideo', 1, 'YUY2_1024x768');
You are creating a new video input object without deleting the previous one (created the first time you pressed the button). Either add a line to delete your object before the callback exits (so after you've saved to file), or use a single object that you create once and save to your handles object. Something like
 function pbTP_Callback(hObject, eventdata, handles)
 if ~isfield(handles,'vidObject')
     handles.vidObject = videoinput('winvideo', 1, 'YUY2_1024x768');
     guidata(hObject,handles);
 end
 % now do same as what you have written, replacing vid with handles.vidObject
The above code checks to see if the vidObject has already been created and is part of the handles structure. If not, it creates it and saves it to handles using guidata.
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