unable to display video object detection in GUI..please help here..??

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Rajesh 2013-3-13

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https://ww2.mathworks.cn/matlabcentral/answers/66987-unable-to-display-video-object-detection-in-gui-please-help-here

This is my code for object detection in video, but it unable to display in GUI axes, it is displaying outside axes.. plz help..?

vid = videoinput('winvideo',1, 'YUY2_640x480');
set(vid,'ReturnedColorSpace','rgb');
set(vid,'TriggerRepeat',Inf);
vid.FrameGrabInterval =5;
start(vid);
figure;
while(vid.FramesAcquired<=50) % Stop after 50 frames, it depends upon the 
frames
   data = getdata(vid,2);
   differ_image = imabsdiff(data(:,:,:,1),data(:,:,:,2)); %background subtraction
diff = rgb2gray(differ_image);
diff_bw = im2bw(diff,0.2);
bw2 = imfill(diff_bw,'holes');
s = regionprops(differ_image, 'centroid');
cd = s.Centroid;
centroids = cat(1, s.Centroid);
imshow(data(:,:,:,2));
hold(imgca,'on');
plot(imgca,centroids(:,1),centroids(:,2),'m*');
hold on;
rectangle('Position',[cd(:,1) cd(:,2) 20 20],'LineWidth',2,'EdgeColor','c');
hold(imgca,'off');
end
stop(vid)
delete(vid)
close(vid)
handles.output = hObject;

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Walter Roberson 2013-3-13

What is displaying outside of the axes?

You should have a drawnow() after you have finished the plotting.

Note: you should probably use 'Parent', imgca for the rectangle()

Rajesh 2013-3-13

outside of the axes figure window is displaying with complete output without any error but I need to display in axes command GUI not outside axes, it is inside axes...?

Here I'm using IMSHOW(), so this is problem arising, it is always display outside of axes GUI axis, so I need to rectify this problem.

So, how can I display output with out using IMSHOW() command.

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