How do I show a IplImage in a gtk.Image? *Joseph Soares Alcântara* Engenharia da Computação - 8º semestre Universidade Federal do Ceará - UFC Sobral - Ceará
+--------------------------------------------------------------------------+ .| - °v°...A liberdade não pode ser comprada e sim | .| -/(_)\..conquistada. Conquiste a sua também use | .| - ^^ G N U / L I N U X | +--------------------------------------------------------------------------+ 2012/2/21 Joseph S. Alcântara <[email protected]> > I cannot access FAQ, I think it's not working now. > Don't you have any example how could I solve that? > Yes, I'd like to show image from cv.QueryFrame in a gtk.Image, But I am > new in this, I'm learning a little slow. > It's a project to the university. We have an Open Source Study Group, and > I have to create a program using python + opencv + gtk. > > Thank you > > *Joseph Soares Alcântara* > Engenharia da Computação - 8º semestre > Universidade Federal do Ceará - UFC > Sobral - Ceará > > > +--------------------------------------------------------------------------+ > .| - °v°...A liberdade não pode ser comprada e sim | > .| -/(_)\..conquistada. Conquiste a sua também use | > .| - ^^ G N U / L I N U X | > > +--------------------------------------------------------------------------+ > > > > 2012/2/21 John Stowers <[email protected]> > >> IIRC opecv starts a mainloop when create window is called. >> >> In general, don't use threads unless you have read the FAQ and >> understand what you are doing. >> >> John >> >> 2012/2/21 Joseph S. Alcântara <[email protected]>: >> > Even if I don't use, ie, if I comment the lines where NamedWindow, >> ShowImage >> > and WaitKey appear it freezes too. >> > >> > Joseph Soares Alcântara >> > Engenharia da Computação - 8º semestre >> > Universidade Federal do Ceará - UFC >> > Sobral - Ceará >> > >> > >> +--------------------------------------------------------------------------+ >> > .| - °v°...A liberdade não pode ser comprada e sim | >> > .| -/(_)\..conquistada. Conquiste a sua também use | >> > .| - ^^ G N U / L I N U X | >> > >> +--------------------------------------------------------------------------+ >> > >> > >> > >> > 2012/2/21 John Stowers <[email protected]> >> >> >> >> GTK is not threadsafe. >> >> >> >> If opencv shows a gtk mainwindow in cv.ShowImage, and that occurs in a >> >> different thread to the one running gtk_main, then unpredictable >> >> crashes and odd behaviour will result. >> >> >> >> Please check the pygtk FAQ for how to use threading and pygtk. >> >> >> >> I suggest displaying the image yourself in by getting the data from >> >> the IPL image and copying it into a GtkImage. Or be much more careful >> >> with which operations you do in which thread (i.e. cv.ShowImage, >> >> cv.WaitKey) >> >> >> >> John >> >> >> >> 2012/2/21 Joseph S. Alcântara <[email protected]>: >> >> > Hi, Thank you for response to me. >> >> > >> >> > See, can I sand you my program to you see what I am making? I've used >> >> > Thread, but seems like is not working like I want. >> >> > >> >> > You must run from main.py >> >> > >> >> > Joseph Soares Alcântara >> >> > Engenharia da Computação - 8º semestre >> >> > Universidade Federal do Ceará - UFC >> >> > Sobral - Ceará >> >> > >> >> > >> >> > >> +--------------------------------------------------------------------------+ >> >> > .| - °v°...A liberdade não pode ser comprada e sim | >> >> > .| -/(_)\..conquistada. Conquiste a sua também use | >> >> > .| - ^^ G N U / L I N U X | >> >> > >> >> > >> +--------------------------------------------------------------------------+ >> >> > >> >> > >> >> > >> >> > 2012/2/19 Hart's Antler <[email protected]> >> >> >> >> >> >> Hi Joseph, >> >> >> I got GTK and OpenCV working together using threads. This example >> >> >> works >> >> >> with CPython2, CPython3 and PyPy, see my blog post. >> >> >> http://pyppet.blogspot.com/2011/12/rpythonic-044.html >> >> >> >> >> >> -brett- >> >> >> >> >> >> ________________________________ >> >> >> From: Joseph S. Alcântara <[email protected]> >> >> >> To: [email protected] >> >> >> Sent: Sunday, February 19, 2012 9:46 AM >> >> >> Subject: [pygtk] PyGTK + OpenCV >> >> >> >> >> >> hi, I'm writing a application that uses pygtk and opencv. and I had >> a >> >> >> problem. When I run the program it shows a gui. So far so good. But, >> >> >> when I >> >> >> click in a menuitem, it should call a functino that runs the famous >> >> >> routine >> >> >> to show a video from webcam. But in this moment, the app freezes. I >> >> >> have >> >> >> tried to use thread, but opencv gui runs just after I call >> >> >> gtk.main_quit(). >> >> >> What could solve my problem? Thanks. >> >> >> >> >> >> Estou escrevendo um programa em python, usando pygtk e opencv. >> Quando >> >> >> rodo >> >> >> o programa, aparece uma janela e até aí, beleza. Mas quando eu >> clico em >> >> >> um >> >> >> menuitem, ele deve chamar uma função que roda a famosa rotina que >> exibe >> >> >> um >> >> >> vídeo a partir da webcam. No entanto, neste momento, o programa >> trava. >> >> >> Então, eu tentei usar Thread, mas a parte do opencv só roda depois >> que >> >> >> eu >> >> >> fecho a janela, chamando gtk.main_quit(). O que poderia ser? >> Obrigado >> >> >> desde >> >> >> já. >> >> >> >> >> >> Joseph Soares Alcântara >> >> >> Engenharia da Computação - 8º semestre >> >> >> Universidade Federal do Ceará - UFC >> >> >> Sobral - Ceará >> >> >> >> >> >> >> >> >> >> >> >> >> +--------------------------------------------------------------------------+ >> >> >> .| - °v°...A liberdade não pode ser comprada e sim | >> >> >> .| -/(_)\..conquistada. Conquiste a sua também use | >> >> >> .| - ^^ G N U / L I N U X >> | >> >> >> >> >> >> >> >> >> >> +--------------------------------------------------------------------------+ >> >> >> >> >> >> >> >> >> _______________________________________________ >> >> >> pygtk mailing list [email protected] >> >> >> http://www.daa.com.au/mailman/listinfo/pygtk >> >> >> Read the PyGTK FAQ: http://faq.pygtk.org/ >> >> >> >> >> > >> >> > >> >> > _______________________________________________ >> >> > pygtk mailing list [email protected] >> >> > http://www.daa.com.au/mailman/listinfo/pygtk >> >> > Read the PyGTK FAQ: http://faq.pygtk.org/ >> > >> > >> > >
_______________________________________________ pygtk mailing list [email protected] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
