Class BackgroundSubtractorGSOC

java.lang.Object
org.opencv.core.Algorithm
org.opencv.video.BackgroundSubtractor
org.opencv.bgsegm.BackgroundSubtractorGSOC
public class BackgroundSubtractorGSOC extends BackgroundSubtractor
Implementation of the different yet better algorithm which is called GSOC, as it was implemented during GSOC and was not originated from any paper. This algorithm demonstrates better performance on CDNET 2014 dataset compared to other algorithms in OpenCV.

  • Constructor Details

    • BackgroundSubtractorGSOC

      protected BackgroundSubtractorGSOC(long addr)

  • Method Details

    • __fromPtr__

      public static BackgroundSubtractorGSOC __fromPtr__(long addr)

    • apply

      public void apply(Mat image, Mat fgmask, double learningRate)
      Description copied from class: BackgroundSubtractor
      Computes a foreground mask.
      Overrides:
      apply in class BackgroundSubtractor
      Parameters:
      image - Next video frame.
      fgmask - The output foreground mask as an 8-bit binary image.
      learningRate - The value between 0 and 1 that indicates how fast the background model is learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame.

    • apply

      public void apply(Mat image, Mat fgmask)
      Description copied from class: BackgroundSubtractor
      Computes a foreground mask.
      Overrides:
      apply in class BackgroundSubtractor
      Parameters:
      image - Next video frame.
      fgmask - The output foreground mask as an 8-bit binary image. learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame.

    • apply

      public void apply(Mat image, Mat knownForegroundMask, Mat fgmask, double learningRate)
      Description copied from class: BackgroundSubtractor
      Computes a foreground mask with known foreground mask input.
      Overrides:
      apply in class BackgroundSubtractor
      Parameters:
      image - Next video frame. Floating point frame will be used without scaling and should be in range \([0,255]\).
      knownForegroundMask - The mask for inputting already known foreground, allows model to ignore pixels.
      fgmask - The output foreground mask as an 8-bit binary image.
      learningRate - The value between 0 and 1 that indicates how fast the background model is learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame. Note: This method has a default virtual implementation that throws a "not impemented" error. Foreground masking may not be supported by all background subtractors.

    • apply

      public void apply(Mat image, Mat knownForegroundMask, Mat fgmask)
      Description copied from class: BackgroundSubtractor
      Computes a foreground mask with known foreground mask input.
      Overrides:
      apply in class BackgroundSubtractor
      Parameters:
      image - Next video frame. Floating point frame will be used without scaling and should be in range \([0,255]\).
      knownForegroundMask - The mask for inputting already known foreground, allows model to ignore pixels. learnt. Negative parameter value makes the algorithm to use some automatically chosen learning rate. 0 means that the background model is not updated at all, 1 means that the background model is completely reinitialized from the last frame. Note: This method has a default virtual implementation that throws a "not impemented" error. Foreground masking may not be supported by all background subtractors.
      fgmask - The output foreground mask as an 8-bit binary image.

    • getBackgroundImage

      public void getBackgroundImage(Mat backgroundImage)
      Description copied from class: BackgroundSubtractor
      Computes a background image.
      Overrides:
      getBackgroundImage in class BackgroundSubtractor
      Parameters:
      backgroundImage - The output background image. Note: Sometimes the background image can be very blurry, as it contain the average background statistics.