Grabber class that uses OpenCV's grabbing function to grab camera images. More...

#include <OpenCVCamGrabber.h>

Inheritance diagram for icl::io::OpenCVCamGrabber:

Public Member Functions
virtual const core::ImgBase *	acquireImage ()
	grab function grabs an image (destination image is adapted on demand)
void	processPropertyChange (const utils::Configurable::Property &prop)
	callback for changed configurable properties
	OpenCVCamGrabber (int dev=0) throw (utils::ICLException)
	Creates new OpenCV based grabber.
	~OpenCVCamGrabber ()
	Destructor.
Static Public Member Functions
static const std::vector < GrabberDeviceDescription > &	getDeviceList (std::string hint, bool rescan)
	simpler version of getDeviceListN detecting a maxinum of 100 devices
Private Attributes
CvCapture *	cvc
	Wrapped Device struct.
int	device
	number of device
utils::Mutex	m_mutex
	locks all accesses to property values
core::ImgBase *	m_buffer
	Buffer for imagescaling.

Detailed Description

Grabber class that uses OpenCV's grabbing function to grab camera images.

Constructor & Destructor Documentation

icl::io::OpenCVCamGrabber::OpenCVCamGrabber ( int dev = 0 ) throw (utils::ICLException)

Creates new OpenCV based grabber.

Parameters:

dev

specifies the device index (0 chooses any available device automatically) you can also use opencv's so called 'domain offsets': current values are:

100 MIL-drivers (proprietary)
200 V4L,V4L2 and VFW,
300 Firewire,
400 TXYZ (proprietary)
500 QuickTime
600 Unicap
700 Direct Show Video Input (e.g. device ID 301 selects the 2nd firewire device)

icl::io::OpenCVCamGrabber::~OpenCVCamGrabber ( )

Destructor.

Member Function Documentation

virtual const core::ImgBase* icl::io::OpenCVCamGrabber::acquireImage ( ) [virtual]

grab function grabs an image (destination image is adapted on demand)

grab function calls the Grabber-specific acquireImage-method and applies distortion if necessary

If dst is not NULL, it is exploited and filled with image data

Reimplemented from icl::io::Grabber.

static const std::vector<GrabberDeviceDescription>& icl::io::OpenCVCamGrabber::getDeviceList	(	std::string	hint,
		bool	rescan
	)		`[static]`

simpler version of getDeviceListN detecting a maxinum of 100 devices

Internally, for each device index i=0,1,2,..., a grabber-instance is created. If any of these creation trys returns an error, no further devices are tested.

Parameters:

rescan if this params is a positive or zero integer, it defines the last device ID that is tried internally

void icl::io::OpenCVCamGrabber::processPropertyChange ( const utils::Configurable::Property & prop )

callback for changed configurable properties

Reimplemented from icl::io::Grabber.