noiseprofile.c File Reference

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <glib/gstdio.h>

Include dependency graph for noiseprofile.c:

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Macros
#define	ELEM_SWAP(a, b)   { elem_type t=(a);(a)=(b);(b)=t; }
#define	median(a, n)   kth_smallest(a,n,(((n)&1)?((n)/2):(((n)/2)-1)))
#define	N   300

Typedefs
typedef float	dt_aligned_pixel_t[4]
typedef float	elem_type

Functions
static elem_type	kth_smallest (elem_type a[], int n, int k)
static float *	read_pfm (const char *filename, int *wd, int *ht)
static float *	read_histogram (const char *filename, int *bins)
static void	invert_histogram (const float *const hist, float *const inv_hist, const int bins)
static float	clamp (float f, float m, float M)
int	compare_llhh (const void *a, const void *b)
int	main (int argc, char *arg[])

Macro Definition Documentation

ELEM_SWAP

#define ELEM_SWAP	(		a,
			b
	)		{ elem_type t=(a);(a)=(b);(b)=t; }

Definition at line 31 of file noiseprofile.c.

median

#define median	(		a,
			n
	)		kth_smallest(a,n,(((n)&1)?((n)/2):(((n)/2)-1)))

Definition at line 75 of file noiseprofile.c.

N

#define N   300

Definition at line 158 of file noiseprofile.c.

Typedef Documentation

dt_aligned_pixel_t

typedef float dt_aligned_pixel_t[4]

Definition at line 28 of file noiseprofile.c.

elem_type

typedef float elem_type

Definition at line 30 of file noiseprofile.c.

Function Documentation

clamp()

static float clamp ( float  f, float  m, float  M  )

inlinestatic

Definition at line 161 of file noiseprofile.c.

References f, M, and m.

Referenced by compare_llhh(), lerp_lookup_unbounded(), lookup(), lookup_unbounded(), and main().

compare_llhh()

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

Definition at line 166 of file noiseprofile.c.

References clamp(), and N.

Referenced by main().

invert_histogram()

static void invert_histogram ( const float *const  hist, float *const  inv_hist, const int  bins  )

static

Definition at line 121 of file noiseprofile.c.

References i, and k.

Referenced by main().

kth_smallest()

static elem_type kth_smallest ( elem_type  a[], int  n, int  k  )

static

Definition at line 51 of file noiseprofile.c.

References ELEM_SWAP, i, k, m, n, and x.

main()

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

Todo:

: test if file with replaced ext exists

Todo:

: add a callback to set the bpp without going through the config

Todo:

: have a parameter in command line to get the export presets

Definition at line 171 of file noiseprofile.c.

References clamp(), compare_llhh(), d, f, i, invert_histogram(), k, max, median, N, out, read_histogram(), read_pfm(), write_pfm(), and x.

read_histogram()

static float * read_histogram ( const char *  filename, int *  bins  )

static

Definition at line 95 of file noiseprofile.c.

References f, and k.

Referenced by main().

read_pfm()

static float * read_pfm ( const char *  filename, int *  wd, int *  ht  )

static

Definition at line 80 of file noiseprofile.c.

References f, k, and p.

Referenced by main().