boofcv.alg.feature.describe.impl

Class ImplSurfDescribeOps

java.lang.Object

boofcv.alg.feature.describe.impl.ImplSurfDescribeOps

public class ImplSurfDescribeOps
extends java.lang.Object

Design Note: When estimating the

Constructor Summary

Constructors

Constructor and Description
ImplSurfDescribeOps()

Method Summary

Modifier and Type	Method and Description
static void	gradientInner(boofcv.struct.image.GrayF32 ii, double tl_x, double tl_y, double samplePeriod, int regionSize, double kernelSize, float[] derivX, float[] derivY) Computes the gradient for a using the derivX kernel found in DerivativeIntegralImage.
static void	gradientInner(boofcv.struct.image.GrayS32 ii, double tl_x, double tl_y, double samplePeriod, int regionSize, double kernelSize, int[] derivX, int[] derivY) Computes the gradient for a using the derivX kernel found in DerivativeIntegralImage.
static <T extends boofcv.struct.image.ImageGray> void	naiveGradient(T ii, double tl_x, double tl_y, double samplePeriod, int regionSize, double kernelSize, boolean useHaar, double[] derivX, double[] derivY) Simple algorithm for computing the gradient of a region.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ImplSurfDescribeOps

public ImplSurfDescribeOps()

Method Detail

gradientInner

public static void gradientInner(boofcv.struct.image.GrayF32 ii,
                                 double tl_x,
                                 double tl_y,
                                 double samplePeriod,
                                 int regionSize,
                                 double kernelSize,
                                 float[] derivX,
                                 float[] derivY)

Computes the gradient for a using the derivX kernel found in DerivativeIntegralImage. Assumes that the entire region, including the surrounding pixels, are inside the image.

gradientInner

public static void gradientInner(boofcv.struct.image.GrayS32 ii,
                                 double tl_x,
                                 double tl_y,
                                 double samplePeriod,
                                 int regionSize,
                                 double kernelSize,
                                 int[] derivX,
                                 int[] derivY)

Computes the gradient for a using the derivX kernel found in DerivativeIntegralImage. Assumes that the entire region, including the surrounding pixels, are inside the image.

naiveGradient

public static <T extends boofcv.struct.image.ImageGray> void naiveGradient(T ii,
                                                                           double tl_x,
                                                                           double tl_y,
                                                                           double samplePeriod,
                                                                           int regionSize,
                                                                           double kernelSize,
                                                                           boolean useHaar,
                                                                           double[] derivX,
                                                                           double[] derivY)

Simple algorithm for computing the gradient of a region. Can handle image borders