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schorsch |
3.11 |
/* RCSid: $Id: pcond.h,v 3.10 2003/02/22 02:07:27 greg Exp $ */
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greg |
3.1 |
/*
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* Header file for picture file conditioning.
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*/
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schorsch |
3.11 |
#ifndef _RAD_PCOND_H_
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#define _RAD_PCOND_H_
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greg |
3.1 |
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#include "standard.h"
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#include "color.h"
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#include "view.h"
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schorsch |
3.11 |
#ifdef __cplusplus
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extern "C" {
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#endif
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greg |
3.1 |
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greg |
3.10 |
#ifndef ADJ_VEIL
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#define ADJ_VEIL 0 /* adjust veil to preserve contrast? */
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#endif
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greg |
3.1 |
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#define SWNORM 2.26 /* scotopic/photopic ratio for white */
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#define WHTSEFFICACY (SWNORM*WHTEFFICACY)
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greg |
3.3 |
#define BotMesopic 5.62e-3 /* top of scotopic range */
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#define TopMesopic 5.62 /* bottom of photopic range */
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greg |
3.10 |
#define FOVDIA (1.0*PI/180.0) /* foveal diameter (radians) */
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greg |
3.1 |
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#define HISTRES 100 /* histogram resolution */
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gwlarson |
3.9 |
#define MAXPREHIST 1024 /* maximum precomputed histogram */
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greg |
3.1 |
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gwlarson |
3.8 |
#define LMIN 1e-7 /* minimum visible world luminance */
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greg |
3.1 |
#define LMAX 1e5 /* maximum visible world luminance */
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#define Bl(Lw) log(Lw) /* brightness function */
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#define Bl1(Lw) (1.0/(Lw)) /* first derivative of Bl(Lw) */
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#define Lb(Bw) exp(Bw) /* inverse of brightness function */
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#define Lb1(Bw) exp(Bw) /* first derivative of Lb(Bw) */
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/* Flags of what to do */
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greg |
3.2 |
#define DO_ACUITY 01
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greg |
3.1 |
#define DO_VEIL 02
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#define DO_HSENS 04
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#define DO_COLOR 010
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#define DO_CWEIGHT 020
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greg |
3.5 |
#define DO_FIXHIST 040
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gwlarson |
3.9 |
#define DO_PREHIST 0100
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#define DO_LINEAR 0200
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greg |
3.1 |
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#define DO_HUMAN (DO_ACUITY|DO_VEIL|DO_HSENS|DO_COLOR)
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extern int what2do; /* desired adjustments */
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extern double ldmax; /* maximum output luminance */
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greg |
3.7 |
extern double lddyn; /* display dynamic range */
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extern double Bldmin, Bldmax; /* Bl(ldmax/lddyn) and Bl(ldmax) */
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greg |
3.1 |
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extern char *progname; /* global argv[0] */
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extern char *infn; /* input file name */
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extern FILE *infp; /* input stream */
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extern double rgblum(), cielum(); /* luminance functions */
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extern double (*lumf)(); /* input luminance function */
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extern double inpexp; /* input exposure value */
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#define plum(clr) ((*lumf)(clr,0)/inpexp)
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#define slum(clr) ((*lumf)(clr,1)/inpexp)
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greg |
3.7 |
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#define ldmin (ldmax/lddyn)
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greg |
3.1 |
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extern COLOR *fovimg; /* foveal (1 degree) averaged image */
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greg |
3.10 |
extern int fvxr, fvyr; /* foveal image resolution */
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extern float *crfimg; /* contrast reduction factors */
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greg |
3.1 |
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#define fovscan(y) (fovimg+(y)*fvxr)
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greg |
3.10 |
#define crfscan(y) (crfimg+(y)*fvxr)
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greg |
3.5 |
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extern double fixfrac; /* histogram share due to fixations */
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extern short (*fixlst)[2]; /* fixation history list */
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extern int nfixations; /* number of fixation points */
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greg |
3.1 |
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greg |
3.10 |
extern double bwhist[HISTRES]; /* luminance histogram */
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greg |
3.4 |
extern double histot; /* total count of histogram */
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greg |
3.1 |
extern double bwmin, bwmax; /* histogram limits */
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extern double bwavg; /* mean brightness */
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greg |
3.4 |
#define bwhi(B) (int)(HISTRES*((B)-bwmin)/(bwmax-bwmin))
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greg |
3.1 |
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extern RGBPRIMP inprims; /* input primaries */
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extern COLORMAT inrgb2xyz; /* convert input RGB to XYZ */
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extern RGBPRIMP outprims; /* output primaries */
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extern double scalef; /* linear scaling factor */
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extern VIEW ourview; /* picture view */
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extern double pixaspect; /* pixel aspect ratio */
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extern RESOLU inpres; /* input picture resolution */
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extern char *mbcalfile; /* macbethcal mapping file */
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greg |
3.6 |
extern char *cwarpfile; /* color warp mapping file */
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greg |
3.1 |
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extern double hacuity(); /* human acuity func. (cycles/deg.) */
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extern double htcontrs(); /* human contrast sens. func. */
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greg |
3.10 |
extern double clampf(); /* histogram clamping function */
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extern double crfactor(); /* contrast reduction factor */
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greg |
3.1 |
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extern COLOR *firstscan(); /* first processed scanline */
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extern COLOR *nextscan(); /* next processed scanline */
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schorsch |
3.11 |
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RAD_PCOND_H_ */
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