libAuxiliary.cpp File Reference

Standard functions used by demosaicking algorithms. More...

#include "libAuxiliary.h"

Include dependency graph for libAuxiliary.cpp:

Go to the source code of this file.

Functions
void	wxRgb2Yuv (float *r, float *g, float *b, float *y, float *u, float *v, int width, int height)
	RGV to YUV standard conversion.
void	wxYuv2Rgb (float *r, float *g, float *b, float *y, float *u, float *v, int width, int height)
	YUV to RGB standard conversion.
void	wxCopy (float *tpI, float *tpO, int ilength)
	Make a copy of float vector.
void	sFillLut (float *lut, int size)
	Tabulate Exp(-x).
float	sLUT (float dif, float *lut)
	Compute Exp(-x).
float	l2_distance_r1 (float *u0, int i0, int j0, int i1, int j1, int width)
	Compute Euclidean distance of a 3x3 patch centered at (i0,j0), (u1,j1) of the same image.
void	wxMedian (float *u, float *v, float fRadius, int inIter, int iWidth, int iHeight)
	Sliding window iterated median filter.
int	order_float_increasing (const void *a, const void *b)
void	QuickSortFloat (float *arr, int ilength)
	Standard Quicksort. Orders float array in increasing order.

---

Detailed Description

Standard functions used by demosaicking algorithms.

Author:

Antoni Buades <toni.buades@uib.es>

Definition in file libAuxiliary.cpp.

---

Function Documentation

float l2_distance_r1	(	float *	u0,
		int	i0,
		int	j0,
		int	i1,
		int	j1,
		int	width
	)

Compute Euclidean distance of a 3x3 patch centered at (i0,j0), (u1,j1) of the same image.

Parameters:

[in]	u0	image
[in]	(i0,j0)	center of first window
[in]	(i1,j1)	center of second window
[in]	width	width of the image

Definition at line 171 of file libAuxiliary.cpp.

Here is the caller graph for this function:

int order_float_increasing	(	const void *	a,
		const void *	b
	)

Definition at line 298 of file libAuxiliary.cpp.

Here is the caller graph for this function:

void QuickSortFloat	(	float *	arr,
		int	ilength
	)

Standard Quicksort. Orders float array in increasing order.

Parameters:

[in]	arr	input array
[in]	ilength	length of the array
[out]	arr	output array

Definition at line 320 of file libAuxiliary.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void sFillLut	(	float *	lut,
		int	size
	)

Tabulate Exp(-x).

Parameters:

[out]	lut	output table
[in]	size	size of the table

Definition at line 122 of file libAuxiliary.cpp.

Here is the caller graph for this function:

float sLUT	(	float	dif,
		float *	lut
	)

Compute Exp(-x).

Parameters:

[in]	dif	value of x
[in]	lut	table of Exp(-x)

Definition at line 142 of file libAuxiliary.cpp.

Here is the caller graph for this function:

void wxCopy	(	float *	tpI,
		float *	tpO,
		int	ilength
	)

Make a copy of float vector.

Parameters:

[in]	tpI	input vector
[out]	tpO	copy
[in]	ilength	length of the vector

Definition at line 102 of file libAuxiliary.cpp.

Here is the caller graph for this function:

void wxMedian	(	float *	u,
		float *	v,
		float	fRadius,
		int	inIter,
		int	iWidth,
		int	iHeight
	)

Sliding window iterated median filter.

Parameters:

[in]	u	input image
[out]	v	output image
[in]	inIter	number of iterations
[in]	fRadius	window of size (2*fRadius+1) x (2*fRadius+1)
[in]	iWidth,iHeight	size of the image

Definition at line 237 of file libAuxiliary.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

void wxRgb2Yuv	(	float *	r,
		float *	g,
		float *	b,
		float *	y,
		float *	u,
		float *	v,
		int	width,
		int	height
	)

RGV to YUV standard conversion.

Y = COEFF_YR * R + COEFF_YG * G + COEFF_YB * B

U = R - Y

V = B - Y

Parameters:

[in]	r,g,b	input image
[out]	y,u,v	yuv coordinates
[in]	width,height	size of the image

Definition at line 50 of file libAuxiliary.cpp.

Here is the caller graph for this function:

void wxYuv2Rgb	(	float *	r,
		float *	g,
		float *	b,
		float *	y,
		float *	u,
		float *	v,
		int	width,
		int	height
	)

YUV to RGB standard conversion.

Parameters:

[in]	y,u,v	yuv coordinates
[out]	r,g,b	ouput image
[in]	width,height	size of the image

Definition at line 75 of file libAuxiliary.cpp.

Here is the caller graph for this function: