[pygtk] PyGTK + OpenCV
Joseph S. Alcântara
josephseraos at gmail.com
Fri Mar 2 04:48:59 WST 2012
Hey everybody, I get what I was trying about opencv+pygtk,
Where do I put what I get. If anyone wants to do the same thing, it could
be easy for them.
Regards,
*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 |
+--------------------------------------------------------------------------+
2012/3/1 Petr Kubánek <petr em kubanek.net>
> When calling GTK method. See sources in
>
> http://rts-2.svn.sourceforge.net/viewvc/rts-2/trunk/pyrts2/widgets/
>
> for details.
>
> Petr Kubanek
>
> Joseph S. Alcântara píše v Pá 24. 02. 2012 v 16:26 -0300:
> > Where do I have put gobject.idle_add?
> >
> > See the program: http://paste.debian.net/157481/
> >
> > 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 |
> >
> +--------------------------------------------------------------------------+
> >
> >
> >
> > 2012/2/22 Timo <timomlists em gmail.com>
> > Op 22-02-12 12:19, Joseph S. Alcântara schreef:
> > Hi, now I get access to FAQ PyGTK talking about
> > threads. It seems a little complicated, and I didn't
> > get it to work yet.
> > Like there teaches, I put at the begin, before
> > anything be called, gtk.threads_init() (that my python
> > says it's deprecated and suggest me to use
> > gtk.gdk.threads_init, as well as threads_enter/leave)
> >
> > So, I put gtk.main() between thrads_enter/leave and
> > every part of code I want to be a thread, I put into
> > this code (enter/leave) but it continue working the
> > same. ie, it's now working.
> >
> > I'm did something like this, into a class:
> >
> > gtk.gdk.threads_enter
> >
> > self.th <http://self.th> =
> > Thread(target=self.camera.runvideo)
> >
> > self.th.start()
> > gtk.gdk.threads_leave
> >
> > It's a class that calls a gtk.Window. After, in
> > self.camera.runvideo, it calls famous routine to show
> > images from webcam
> >
> >
> > I think it's also in the FAQ, but you shouldn't do any GUI
> > stuff in a thread, and if you do so, call it with
> > gobject.idle_add().
> >
> > Cheers,
> > Timo
> >
> > *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 <josephseraos em gmail.com
> > <mailto:josephseraos em gmail.com>>
> >
> >
> > 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
> > <josephseraos em gmail.com
> >
> > <mailto:josephseraos em gmail.com>>
> >
> >
> > 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
> > <john.stowers.lists em gmail.com
> >
> > <mailto:john.stowers.lists em gmail.com>>
> >
> >
> > 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
> > <josephseraos em gmail.com
> >
> > <mailto:josephseraos em gmail.com>>:
> >
> > > 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
> > <john.stowers.lists em gmail.com
> >
> > <mailto:john.stowers.lists em gmail.com>>
> >
> > >>
> > >> 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
> > <josephseraos em gmail.com
> >
> > <mailto:josephseraos em gmail.com>>:
> >
> > >> > 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
> > <bhartsho em yahoo.com
> >
> > <mailto:bhartsho em yahoo.com>>
> >
> > >> >>
> > >> >> 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
> > <josephseraos em gmail.com
> >
> > <mailto:josephseraos em gmail.com>>
> > >> >> To: pygtk em daa.com.au
> > <mailto:pygtk em daa.com.au>
> >
> >
> > >> >> 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 pygtk em daa.com.au
> >
> > <mailto:pygtk em daa.com.au>
> >
> > >> >>
> > http://www.daa.com.au/mailman/listinfo/pygtk
> > >> >> Read the PyGTK FAQ:
> > http://faq.pygtk.org/
> > >> >>
> > >> >
> > >> >
> > >> >
> > _______________________________________________
> > >> > pygtk mailing list pygtk em daa.com.au
> >
> > <mailto:pygtk em daa.com.au>
> >
> > >> >
> > http://www.daa.com.au/mailman/listinfo/pygtk
> > >> > Read the PyGTK FAQ:
> > http://faq.pygtk.org/
> > >
> > >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > pygtk mailing list pygtk em daa.com.au
> > http://www.daa.com.au/mailman/listinfo/pygtk
> > Read the PyGTK FAQ: http://faq.pygtk.org/
> >
> >
> >
> > _______________________________________________
> > pygtk mailing list pygtk em daa.com.au
> > http://www.daa.com.au/mailman/listinfo/pygtk
> > Read the PyGTK FAQ: http://faq.pygtk.org/
> >
> >
> > _______________________________________________
> > pygtk mailing list pygtk em daa.com.au
> > http://www.daa.com.au/mailman/listinfo/pygtk
> > Read the PyGTK FAQ: http://faq.pygtk.org/
>
>
>
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