Thanks so much. I may be missing something, but is there an easy way to convert QVideoFrame to QImage? I can't see one.
Also note that the Qt example code also has this problem: http://qt-project.org/doc/qt-5.0/qtmultimedia/multimediawidgets-camera.html also note that the basic code I posted was example code from Qt Documentation... Thanks! Josh > Oh, I overlooked the code sample you provided. > > You should listen to the imageAvailable() signal instead of > imageCaptured(). What you get from imageCaptured() is just a preview, > it's emitted right after the camera sensor captured the image but at > this point the final image is not processed yet. That final image is > provided by imageAvailable(). You'll notice it's a QVideoFrame and > you'll have to convert it to a QImage if that's what you need. > > Yoann Lopes > Senior Software Engineer - Digia, Qt > Visit us on: http://qt.digia.com > > On Nov 5, 2013, at 7:09 PM, Joshua Grauman wrote: > > Sorry, I'm using Qt5.2beta under Linux. > > Josh > > Which platform are you on? > > Yoann Lopes > Senior Software Engineer - Digia, Qt > Visit us on: http://qt.digia.com > > On Nov 5, 2013, at 7:14 AM, Joshua Grauman wrote: > > Hello all, > > I setup a basic use of QCamera and QCameraViewFinder that work fine. I > just used the basic example in the docs to capture an image like this: > > camera->searchAndLock(); //on half pressed shutter button > imageCapture->capture(); //on shutter button pressed > camera->unlock(); //on shutter button released > > and had setup the viewfinder and camera like this: > > camera = new QCamera; > viewFinder = new QCameraViewfinder(picture1); > viewFinder->setSizePolicy(QSizePolicy::Maximum,QSizePolicy::Maximum); > viewFinder->setGeometry(picture1->geometry()); > imageCapture = new QCameraImageCapture(camera); > connect(imageCapture, SIGNAL(imageCaptured(int, const QImage &)), this, > SLOT(gotImage(int, const QImage &))); > camera->setViewfinder(viewFinder); > imageCapture->setCaptureDestination(QCameraImageCapture::CaptureToBuffer); > camera->setCaptureMode(QCamera::CaptureStillImage); > > Everything works as expected. The problem is with the exposure settings. > The viewfinder looks how I want it to (properly exposed). But when I > capture the image, it is under-exposed (very dark). I was hoping to get > the picture that is taken to have the same exposure settings as the > viewfinder since it looks fine. Does anyone know why the default settings > for QCamera would be under-exposed in comparison to the viewfinder? > Thanks! > > Josh > _______________________________________________ > Interest mailing list > Interest@qt-project.org<mailto:Interest@qt-project.org><mailto:Interest@qt-project.org> > http://lists.qt-project.org/mailman/listinfo/interest > > > > _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
