Code Reference

C#

Camera Calibration

Camera Calibration : Shows the use of the camera calibration method within EMGU,

• Capture()
• CalibrateCamera()
• FindChessboardCorners()
• IntrinsicCameraParameters
• ExtrinsicCameraParameters

Stereo Imaging : Shows the use of the camera calibration StereoCalibrate method within EMGU,

• Capture()
• FindChessboardCorners()
• StereoCalibrate()
• cvStereoRectify()
• IntrinsicCameraParameters
• ExtrinsicCameraParameters
• cvStereoRectify()
• StereoSGBM()
• ReprojectImageTo3D()

Capture

Capture: Camera : Shows the use of the camera capture method to acquire images from a web cam or alternative connected device. This example uses a independent thread to deal with acquiring frames from the device.

• Capture()
• RetrieveBgrFrame()
• RetrieveGrayFrame()
• GetCaptureProperty()
• SetCaptureProperty()

Capture: Camera - Legacy : Shows the use of the older use of the camera capture method to acquire images from a web cam or alternative connected device. This example uses the Application.Idle event to deal with acquiring frames from the device. This method is dependant on processing the form functions first.

• Capture()
• RetrieveBgrFrame()
• RetrieveGrayFrame()
• GetCaptureProperty()
• SetCaptureProperty()

Capture: Video Files Capture : Shows the use of the capture method to load videos save them from a web cam and look at individual frames. It also demostrates the use of the VideoWriter class.

• Capture()
• VideoWriter
• RetrieveBgrFrame()
• RetrieveGrayFrame()
• GetCaptureProperty()
• SetCaptureProperty()
• WriteFrame()

Capture: Kinect : Shows the use of the camera capture method to acquire images from a Microsoft Kinect Device.

In Progress

• KinectCapture()
• RetrieveBgrFrame()
• RetrieveGrayFrame()
• RetrieveDisparityMap()
• RetrieveDisparityMap32f()
• RetrieveValidDepthMap()
• RetrieveDepthMap()
• RetrievePointCloudMap()
• GetColorPoints()
• GetMaxDisparity()
• GetOpenNIContext()

Color

Color Conversion & Correction Shows the use of different image formats. Converting between them, getting image information, and applying colour filtering and correction.

In Progress

• Bgr
• Bgra
• Gray
• Hls
• Hsv
• IColor
• Lab
• Luv
• Rgb
• Rgba
• Xyz
• Ycc

DenseHistogram : Shows the use of OpenCV Dense histogram method

In Progress

• Calculate etc

HistogramShows the use of C# histogram method

In Progress

• Calculate
• Correction
• Apply

Image

Background ImageShows the use of the RunningAvg() to forms a background image of stationary objects within a camera field of view. This can be used for motion tracking purposes with background subtraction.

• AbsDiff()
• RunningAvg()
• ThresholdBinary()
• ToBitmap()

Compare Images: DifferenceShows the use of the AbsDiff() to compare two images, in this case the current frame and previous frame from a web camera. This can be used for motion tracking purposes. This example can be combined with the Background Image example.

• AbsDiff()
• ThresholdBinary()
• FindContours()
• ToBitmap()

VideoWriter

See Capture: Video Files Capture : Shows the use of the capture method to load videos save them from a web cam and look at individual frames. It also demostrates the use of the VideoWriter class.

• VideoWriter
• WriteFrame()