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/***************************************************************************
gamma.h - prototypes and stuff for gamma.c
-------------------
begin : Thu Jan 13 2000
copyright : (C) 1998-2000 by pnm2ppa project
email :
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef _GAMMA_H
#define _GAMMA_H
#include "image.h"
/* empirical color correction curve */
int Make_GammaCurve ( double , double , double );
/* array of trial gamma values */
double GammaValue ( int );
/* produces color calibration page */
int ProduceGamma (image_t *, unsigned char *line );
#endif
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