I am running tracker code in matlabR2013b, it is working properly. But when i try the same code in MatlabR2015b it is giving following error..not able to debug it..any help..thanks in advance...

code :

       [fig_h, axes_h, unused, scroll] = videofig(num_frames, @redraw, [], [], @on_key_press);  %#ok, unused 
       set(fig_h, 'Number','off', 'Name', ['Tracker - ' video_path])
  axis off;

Errors :

Error using matlab.ui.Figure/set
You cannot set the read-only property 'Number' of Figure.

Error in show_video (line 24)
  set(fig_h, 'Number','off', 'Name', ['Tracker - ' video_path])

Error in tracker (line 66)
    update_visualization = show_video(img_files, video_path, resize_image);

Error in run_tracker (line 188)
    [positions, time] = tracker(video_path, img_files, pos, target_sz, ...

Error in run_tracker (line 101)
      [precision, fps] = run_tracker(video, kernel_type, ...

[Madan Kumar Rapuru]

I got the answer .. In line 24 'Number' replaced by 'NumberTitle'...may be syntax issue in new version...thank you

[Yuxi Chen]

I faced the same problem today, but it's fixed by changing 'Number' to 'NumberTitle'. My matlab version is R2016b. Thanks a lot!

[Harold Chate]

I have the same problem, I was fixed replaced "Number" by "NumberTitle", used Matlab R2016b.

Answer 1

[Steven Lord]

In releases prior to release R2014b graphics handles were double precision numbers but as of release R2014b they are objects. To support referring to figures with numbers, we added a new property named Number to figures in that release.

In older releases, 'Number' referred to the NumberTitle property of the figure window; now it refers to the Number property, which is read-only. To correct the problem, modify your code to use 'NumberTitle' instead of 'Number'.