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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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#include "paths.h" |
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#ifdef __cplusplus |
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extern "C" { |
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#define MAXPREHIST 1024 /* maximum precomputed histogram */ |
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#define LMIN 1e-7 /* minimum visible world luminance */ |
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#define LMAX 1e5 /* maximum visible world luminance */ |
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#define LMAX 1e7 /* 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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#endif |
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extern void acuscan(COLOR *scln, int y); /* get acuity-sampled scanline */ |
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extern void addveil(COLOR *sl, int y); /* add veil to scanline */ |
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extern int initacuity(void); /* initialize variable acuity sampling */ |
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extern void initacuity(void); /* initialize variable acuity sampling */ |
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extern double hacuity(double La); /* human acuity func. (cycles/deg.) */ |
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#ifdef __cplusplus |