imcoarsen.c File Reference

Image coarsening utility program. More...

#include <math.h>
#include <string.h>
#include <ctype.h>
#include "imageio.h"

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Data Structures
struct	image
	struct representing an image More...
struct	programparams
	struct of program parameters More...
Defines
#define	VERBOSE   0
#define	NUMSTDS   4
	Approximate Gaussian with this number of standard deviations.
Enumerations
enum	boundaryhandling { BOUNDARY_CONSTANT = 0, BOUNDARY_HSYMMETRIC = 1, BOUNDARY_WSYMMETRIC = 2 }
Functions
int	ParseParams (programparams *Param, int argc, char *argv[])
int	Coarsen (image v, image u, programparams Param)
void	PrintHelpMessage ()
	Print program usage help message.
int	main (int argc, char *argv[])
float	Sqr (float x)
Variables
int(*	ExtensionMethod [3])(int, int)

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Detailed Description

Image coarsening utility program.

Author:

Pascal Getreuer <getreuer@gmail.com>

This file implements the imcoarsen program, a command line tool for coarsening an image by Gaussain smoothing followed by downsampling. See the routine PrintHelpMessage for usage details.

Copyright (c) 2010-2011, Pascal Getreuer All rights reserved.

This program is free software: you can use, modify and/or redistribute it under the terms of the simplified BSD License. You should have received a copy of this license along this program. If not, see <http://www.opensource.org/licenses/bsd-license.html>.

Definition in file imcoarsen.c.

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Define Documentation

#define NUMSTDS   4

Approximate Gaussian with this number of standard deviations.

Definition at line 29 of file imcoarsen.c.

#define VERBOSE   0

Definition at line 26 of file imcoarsen.c.

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Enumeration Type Documentation

enum boundaryhandling

Enumerator:

BOUNDARY_CONSTANT
BOUNDARY_HSYMMETRIC
BOUNDARY_WSYMMETRIC

Definition at line 43 of file imcoarsen.c.

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Function Documentation

int Coarsen	(	image	v,
		image	u,
		programparams	Param
	)

Definition at line 218 of file imcoarsen.c.

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int main	(	int	argc,
		char *	argv[]
	)

Definition at line 98 of file imcoarsen.c.

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int ParseParams	(	programparams *	Param,
		int	argc,
		char *	argv[]
	)

Definition at line 344 of file imcoarsen.c.

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void PrintHelpMessage

(

)

Print program usage help message.

Definition at line 74 of file imcoarsen.c.

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float Sqr

(

float

x

)

Definition at line 152 of file imcoarsen.c.

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Variable Documentation

int(* ExtensionMethod[3])(int, int)

Initial value:

 
    {ConstExtension, HSymExtension, WSymExtension}

Definition at line 214 of file imcoarsen.c.