VideoCapture Class

Initializes empty capture. To use this, you should call Open.

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Initializes from native pointer

Allocates and initialized the CvCapture structure for reading the video stream from the specified file. After the allocated structure is not used any more it should be released by cvReleaseCapture function.

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Gets or sets a memory address allocated by AllocMemory.

Gets or sets the byte length of the allocated memory

exposure control done by camera, user can adjust refernce level using this feature [CV_CAP_PROP_AUTO_EXPOSURE]

Gets or sets brightness of image (only for cameras)

Gets the capture type (File or Camera)

Gets or sets contrast of image (only for cameras)

Boolean flags indicating whether images should be converted to RGB

Native pointer of OpenCV structure

Exposure (only for cameras)

The format of the Mat objects returned by retrieve()

Gets or sets 4-character code of codec

Gets or sets frame rate

Gets number of frames in video file

Gets or sets height of frames in the video stream

Gets or sets width of frames in the video stream

Gain of the image (only for cameras)

default is 1 [CV_CAP_GSTREAMER_QUEUE_LENGTH]

Gets or sets hue of image (only for cameras)

Gets a value indicating whether this instance has been disposed.

Gets or sets a value indicating whether you permit disposing this instance.

A backend-specific value indicating the current capture mode

in mm [CV_CAP_PROP_OPENNI_BASELINE]

[CV_CAP_OPENNI_DEPTH_GENERATOR_BASELINE]

[CV_CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH]

[CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION_ON]

in pixels [CV_CAP_PROP_OPENNI_FOCAL_LENGTH]

in mm [CV_CAP_PROP_OPENNI_FRAME_MAX_DEPTH]

[CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE]

[CV_CAP_PROP_OPENNI_OUTPUT_MODE]

flag that synchronizes the remapping depth map to image map by changing depth generator's view point (if the flag is "on") or sets this view point to its normal one (if the flag is "off"). [CV_CAP_PROP_OPENNI_REGISTRATION]

Gets or sets relative position of video file

Gets or sets 0-based index of the frame to be decoded/captured next

Gets or sets film current position in milliseconds or video capture timestamp

ip for anable multicast master mode. 0 for disable multicast [CV_CAP_PROP_PVAPI_MULTICASTIP]

TOWRITE (note: only supported by DC1394 v 2.x backend currently)

Gets or sets saturation of image (only for cameras)

[CV_CAP_PROP_TEMPERATURE]

Automatic exposure/gain [CV_CAP_PROP_XI_AEAG]

default is 1 [CV_CAP_PROP_XI_AEAG_LEVEL]

Maximum limit of exposure in AEAG procedure [CV_CAP_PROP_XI_AE_MAX_LIMIT]

Maximum limit of gain in AEAG procedure [CV_CAP_PROP_XI_AG_MAX_LIMIT]

Automatic white balance [CV_CAP_PROP_XI_AUTO_WB]

Output data format. [CV_CAP_PROP_XI_DATA_FORMAT]

Change image resolution by binning or skipping. [CV_CAP_PROP_XI_DOWNSAMPLING]

Exposure priority (0.5 - exposure 50%, gain 50%). [CV_CAP_PROP_XI_EXP_PRIORITY]

Get general purpose level [CV_CAP_PROP_XI_GPI_LEVEL]

Set general purpose input mode [CV_CAP_PROP_XI_GPI_MODE]

Selects general purpose input [CV_CAP_PROP_XI_GPI_SELECTOR]

Set general purpose output mode [CV_CAP_PROP_XI_GPO_MODE]

Selects general purpose output [CV_CAP_PROP_XI_GPO_SELECTOR]

Define camera signalling LED functionality [CV_CAP_PROP_XI_LED_MODE]

Selects camera signalling LED [CV_CAP_PROP_XI_LED_SELECTOR]

Calculates White Balance(must be called during acquisition) [CV_CAP_PROP_XI_MANUAL_WB]

Horizontal offset from the origin to the area of interest (in pixels). [CV_CAP_PROP_XI_OFFSET_X]

Vertical offset from the origin to the area of interest (in pixels). [CV_CAP_PROP_XI_OFFSET_Y]

default is 1 [CV_CAP_PROP_XI_TIMEOUT]

Generates an internal trigger. PRM_TRG_SOURCE must be set to TRG_SOFTWARE. [CV_CAP_PROP_XI_TRG_SOFTWARE]

Defines source of trigger. [CV_CAP_PROP_XI_TRG_SOURCE]

Pins the object to be allocated by cvSetData.

Allocates the specified size of memory.

Releases the resources

Releases managed resources

Releases unmanaged resources

Determines whether the specified object is equal to the current object.

Destructor

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Allocates and initialized the CvCapture structure for reading the video stream from the specified file. After the allocated structure is not used any more it should be released by cvReleaseCapture function.

Retrieves the specified property of camera or video file.

Retrieves the specified property of camera or video file.

Serves as the default hash function.

Gets the Type of the current instance.

Grabs the frame from camera or file. The grabbed frame is stored internally. The purpose of this function is to grab frame fast that is important for syncronization in case of reading from several cameras simultaneously. The grabbed frames are not exposed because they may be stored in compressed format (as defined by camera/driver). To retrieve the grabbed frame, cvRetrieveFrame should be used.

Returns true if video capturing has been initialized already.

Creates a shallow copy of the current Object.

Notifies the allocated size of memory.

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Opens the specified video file

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Allocates and initialized the CvCapture structure for reading a video stream from the camera. Currently two camera interfaces can be used on Windows: Video for Windows (VFW) and Matrox Imaging Library (MIL); and two on Linux: V4L and FireWire (IEEE1394).

Grabs a frame from camera or video file, decompresses and returns it. This function is just a combination of cvGrabFrame and cvRetrieveFrame in one call. The returned image should not be released or modified by user.

Closes video file or capturing device.

Returns the pointer to the image grabbed with cvGrabFrame function. The returned image should not be released or modified by user.

Decodes and returns the grabbed video frame.

Decodes and returns the grabbed video frame.

Sets the specified property of video capturing.

Sets the specified property of video capturing.

If this object is disposed, then ObjectDisposedException is thrown.

Returns a string that represents the current object.

Gets or sets a handle which allocates using cvSetData.

Data pointer