ldvOverlap.cpp File Reference

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Detailed Description

Set of functions to compute the overlap between an image and other warped images.

Author:

Copyright (C) 2007 Vincent Rabaud <vrabaud@cs.ucsd.edu>

Version:

1.2-20080501

#include <algorithm>
#include "ldvImgInfo.h"
#include "ldvOverlap.h"

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Functions
unsigned int	computeCornerExtrema (const vector< ImgInfo > &vImgInfo, int &minX, int &maxX, int &minY, int &maxY)
	compute the corner extrema of several images.
void	computeMask (unsigned int width, unsigned int height, const CvMat *const H, IplImage *mask, int nTile)
	Draw a rectangle in an image (if nTile<0, only a white rectangle, otherwise, just the contour of the rectangle).
void	computeOverlap (const vector< ImgInfo > &vImgInfo, unsigned int imgInd, vector< OverlapInfo > &vOverlapInfo)
	compute the corner positions of several images.

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Function Documentation

unsigned int computeCornerExtrema	(	const vector< ImgInfo > &	vImgInfo,
		int &	minX,
		int &	maxX,
		int &	minY,
		int &	maxY
	)

compute the corner extrema of several images.

Parameters:

	vImgInfo	vector containing all the information
	minX	minimal X coordinate of a corner
	maxX	maximal X coordinate of a corner
	minY	minimal Y coordinate of a corner
	maxY	maximal Y coordinate of a corner

References OverlapInfo::i.

Referenced by computeGlobalHomography(), and computePanorama().

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void computeMask	(	unsigned int	width,
		unsigned int	height,
		const CvMat *const	H,
		IplImage *	mask,
		int	nTile
	)

Draw a rectangle in an image (if nTile<0, only a white rectangle, otherwise, just the contour of the rectangle).

Parameters:

	width	width of the image to transform
	height	height of the image to transform
	H	homography to apply to the image
	mask	image where the rectangle will be drawn
	nTile	to be displayed in hte rectangle

References OverlapInfo::i.

Referenced by computeOverlap(), and drawImgInfo().

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void computeOverlap	(	const vector< ImgInfo > &	vImgInfo,
		unsigned int	imgInd,
		vector< OverlapInfo > &	vOverlapInfo
	)

compute the corner positions of several images.

Also return the extrema of these coordinates

Parameters:

	vImgInfo	vector containing all the information
	imgInd	id of the current image to analyze
	vOverlapInfo	vector containing info about the different overlaps

References computeMask(), OverlapInfo::j, and OverlapInfo::OverlapInfo().

Referenced by compareAllSIFT(), and writeOverlapToFile().

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