Hello, Andrew. Thanks for the information, really helpful. Does anybody have any experience on using the n8x0's camera from opencv?
Bad news come from maemo's How to use the Camera API : "*Since the maemo Platform delegates all multimedia handling to the GStreamer framework, applications that need access to the built-in camera should employ GStreamer for this instead of directly acessing Video4Linux devices, via the v4l2src GStreamer module.*" My attempts involved: CvCapture * cap; ... cap= cvCaptureFromCAM (-1); and I get: HIGHGUI ERROR: V4L: device /dev/video0: Unable to query number of channels BTW, a very interesting tutorial, albeit in spanish, may be found at " http://dis.um.es/~ginesgm/files/doc/pav/guion3.pdf"; Thank you, Jesus A. Baro Universidad de Valladolid On Fri, Apr 11, 2008 at 8:33 PM, Andrew Daviel <[EMAIL PROTECTED]> wrote: > On Sun, 6 Apr 2008, Jesus A. Baro wrote: > > Hy Andrew, > > It just may be that fun with char arithmetics is not at the root of the > > trouble. > > Opencv compiles ok for me under both arm and x86. The trick came form > > ArnimS > > at internettabletalk: change -03 to -02. > > > > I had to recompile cvpyrsegmentation with -O2; did that by hand and > restarted make, but otherwise used -O3 > Also did export PYTHON=/usr/bin/python2.5 ; ./configure as I recall. > I'm not using Python; just to get the build to run. > > I see it's trivial to make an image converter from e.g. JPEG to PNG with > opencv, e.g. > > http://www.cs.iit.edu/~agam/cs512/lect-notes/opencv-intro/opencv-intro.html<http://www.cs.iit.edu/%7Eagam/cs512/lect-notes/opencv-intro/opencv-intro.html> > > My real problem is that libdecodeqr I'm trying to use fails on 10% of > codes for no obvious reason, and qrcode in jaimo is way too slow :-( > > Andrew > >
_______________________________________________ maemo-developers mailing list [email protected] https://lists.maemo.org/mailman/listinfo/maemo-developers
