Package org.opencv.xfeatures2d

Class VGG

  • public class VGG
extends Feature2D
    Class implementing VGG (Oxford Visual Geometry Group) descriptor trained end to end using "Descriptor Learning Using Convex Optimisation" (DLCO) aparatus described in CITE: Simonyan14. desc type of descriptor to use, VGG::VGG_120 is default (120 dimensions float) Available types are VGG::VGG_120, VGG::VGG_80, VGG::VGG_64, VGG::VGG_48 isigma gaussian kernel value for image blur (default is 1.4f) img_normalize use image sample intensity normalization (enabled by default) use_orientation sample patterns using keypoints orientation, enabled by default scale_factor adjust the sampling window of detected keypoints to 64.0f (VGG sampling window) 6.25f is default and fits for KAZE, SURF detected keypoints window ratio 6.75f should be the scale for SIFT detected keypoints window ratio 5.00f should be the scale for AKAZE, MSD, AGAST, FAST, BRISK keypoints window ratio 0.75f should be the scale for ORB keypoints ratio dsc_normalize clamp descriptors to 255 and convert to uchar CV_8UC1 (disabled by default)

    • Constructor Detail

      • VGG

        protected VGG​(long addr)

    • Method Detail

      • __fromPtr__

        public static VGG __fromPtr__​(long addr)

      • create

        public static VGG create​(int desc,
                         float isigma,
                         boolean img_normalize,
                         boolean use_scale_orientation,
                         float scale_factor,
                         boolean dsc_normalize)

      • create

        public static VGG create​(int desc,
                         float isigma,
                         boolean img_normalize,
                         boolean use_scale_orientation,
                         float scale_factor)

      • create

        public static VGG create​(int desc,
                         float isigma,
                         boolean img_normalize,
                         boolean use_scale_orientation)

      • create

        public static VGG create​(int desc,
                         float isigma,
                         boolean img_normalize)

      • create

        public static VGG create​(int desc,
                         float isigma)

      • create

        public static VGG create​(int desc)

      • create

        public static VGG create()

      • setSigma

        public void setSigma​(float isigma)

      • getSigma

        public float getSigma()

      • setUseNormalizeImage

        public void setUseNormalizeImage​(boolean img_normalize)

      • getUseNormalizeImage

        public boolean getUseNormalizeImage()

      • setUseScaleOrientation

        public void setUseScaleOrientation​(boolean use_scale_orientation)

      • getUseScaleOrientation

        public boolean getUseScaleOrientation()

      • setScaleFactor

        public void setScaleFactor​(float scale_factor)

      • getScaleFactor

        public float getScaleFactor()

      • setUseNormalizeDescriptor

        public void setUseNormalizeDescriptor​(boolean dsc_normalize)

      • getUseNormalizeDescriptor

        public boolean getUseNormalizeDescriptor()

      • finalize

        protected void finalize()
                 throws java.lang.Throwable
        Overrides:
        finalize in class Feature2D
        Throws:
        java.lang.Throwable