jafar::correl::FastZncc Class Reference

Compared to Zncc, remove some robustness features, but add a lot of optimizations. More...

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Detailed Description

Compared to Zncc, remove some robustness features, but add a lot of optimizations.

Definition at line 52 of file zncc.hpp.

#include <zncc.hpp>

List of all members.

Static Public Member Functions
static double	compute (image::Image const &im1, image::Image const &im2, double sum1, double sumSqr1, double sum2, double sumSqr2, double minScore, int partialLine, double partialSum1, double partialSumSqr1, double partialSum2, double partialSumSqr2)
	This function computes the ZNCC between two images of the same depth in two regions of interest that must have the same size, and use precomputed sums and squaredSums (that should provide from integral images), and some other optimizations.
static double	computeChar (image::Image const &im1, image::Image const &im2, double sum1, double sumSqr1, double sum2, double sumSqr2, double minScore, int partialLine, double partialSum1, double partialSumSqr1, double partialSum2, double partialSumSqr2)
	This version can more easily be inlined, which can increase the speed by 10%, but only manages CV_8U images.
Static Private Member Functions
template<int depth, typename worktype >
static double	computeTpl (image::Image const &im1, image::Image const &im2, double sum1, double sumSqr1, double sum2, double sumSqr2, double minScore, int partialLine, double partialSum1, double partialSumSqr1, double partialSum2, double partialSumSqr2)

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Member Function Documentation

double jafar::correl::FastZncc::compute	(	image::Image const &	im1,
		image::Image const &	im2,
		double	sum1,
		double	sumSqr1,
		double	sum2,
		double	sumSqr2,
		double	minScore,
		int	partialLine,
		double	partialSum1,
		double	partialSumSqr1,
		double	partialSum2,
		double	partialSumSqr2
	)		[inline, static]

This function computes the ZNCC between two images of the same depth in two regions of interest that must have the same size, and use precomputed sums and squaredSums (that should provide from integral images), and some other optimizations.

Parameters:

im1_	the first image
im2_	the second image
sum1	the sum of all the pixels of the first image
sumSqr1	the sum of the square of all the pixels of the first image
sum2	the sum of all the pixels of the second image
sumSqr2	the sum of the square of all the pixels of the second image
minScore	the minimum score for which we want a result (if the real score is below, 0 will be returned)
halfLine	the line number at which the half test will be done: if in the best case it is impossible to reach minScore, then correlation is stopped and 0 is returned
halfSumSqr1	the sum of the square of the pixels of the first image from halfLine+1 to the end of the image

Definition at line 162 of file zncc.hpp.

References jafar::image::Image::depth(), and JFR_PRECOND.

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The documentation for this class was generated from the following file:

• modules/correl/include/correl/zncc.hpp