noise_generator.h File Reference

#include "develop/openmp_maths.h"

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Typedefs
typedef enum dt_noise_distribution_t	dt_noise_distribution_t

Enumerations
enum	dt_noise_distribution_t {   DT_NOISE_UNIFORM = 0 ,   DT_NOISE_GAUSSIAN = 1 ,   DT_NOISE_POISSONIAN = 2 }

Functions
static uint32_t	splitmix32 (const uint64_t seed)
static uint32_t	rol32 (const uint32_t x, const int k)
static float	xoshiro128plus (uint32_t state[4])
static float	uniform_noise (const float mu, const float sigma, uint32_t state[4])
static float	gaussian_noise (const float mu, const float sigma, const int flip, uint32_t state[4])
static float	poisson_noise (const float mu, const float sigma, const int flip, uint32_t state[4])
static float	dt_noise_generator (const dt_noise_distribution_t distribution, const float mu, const float param, const int flip, uint32_t state[4])
static void	uniform_noise_simd (const dt_aligned_pixel_t mu, const dt_aligned_pixel_t sigma, uint32_t state[4], dt_aligned_pixel_t out)
static void	gaussian_noise_simd (const dt_aligned_pixel_t mu, const dt_aligned_pixel_t sigma, const int flip[4], uint32_t state[4], dt_aligned_pixel_t out)
static void	poisson_noise_simd (const dt_aligned_pixel_t mu, const dt_aligned_pixel_t sigma, const int flip[4], uint32_t state[4], dt_aligned_pixel_t out)
static void	dt_noise_generator_simd (const dt_noise_distribution_t distribution, const dt_aligned_pixel_t mu, const dt_aligned_pixel_t param, const int flip[4], uint32_t state[4], dt_aligned_pixel_t out)

Typedef Documentation

dt_noise_distribution_t

typedef enum dt_noise_distribution_t dt_noise_distribution_t

Enumeration Type Documentation

dt_noise_distribution_t

enum dt_noise_distribution_t

Enumerator
DT_NOISE_UNIFORM
DT_NOISE_GAUSSIAN
DT_NOISE_POISSONIAN

Function Documentation

dt_noise_generator()

static float dt_noise_generator ( const dt_noise_distribution_t  distribution, const float  mu, const float  param, const int  flip, uint32_t  state[4]  )

inlinestatic

References DT_NOISE_GAUSSIAN, DT_NOISE_POISSONIAN, DT_NOISE_UNIFORM, flip(), gaussian_noise(), poisson_noise(), and uniform_noise().

dt_noise_generator_simd()

static void dt_noise_generator_simd ( const dt_noise_distribution_t  distribution, const dt_aligned_pixel_t  mu, const dt_aligned_pixel_t  param, const int  flip[4], uint32_t  state[4], dt_aligned_pixel_t  out  )

inlinestatic

References DT_NOISE_GAUSSIAN, DT_NOISE_POISSONIAN, DT_NOISE_UNIFORM, flip(), gaussian_noise_simd(), poisson_noise_simd(), and uniform_noise_simd().

gaussian_noise()

static float gaussian_noise ( const float  mu, const float  sigma, const int  flip, uint32_t  state[4]  )

inlinestatic

References flip(), M_PI, and xoshiro128plus().

Referenced by dt_noise_generator(), inpaint_mask(), and make_noise().

gaussian_noise_simd()

static void gaussian_noise_simd ( const dt_aligned_pixel_t  mu, const dt_aligned_pixel_t  sigma, const int  flip[4], uint32_t  state[4], dt_aligned_pixel_t  out  )

inlinestatic

References flip(), for_each_channel, M_PI, and xoshiro128plus().

Referenced by dt_noise_generator_simd().

poisson_noise()

static float poisson_noise ( const float  mu, const float  sigma, const int  flip, uint32_t  state[4]  )

inlinestatic

References flip(), M_PI, and xoshiro128plus().

Referenced by dt_noise_generator().

poisson_noise_simd()

static void poisson_noise_simd ( const dt_aligned_pixel_t  mu, const dt_aligned_pixel_t  sigma, const int  flip[4], uint32_t  state[4], dt_aligned_pixel_t  out  )

inlinestatic

References flip(), for_each_channel, M_PI, and xoshiro128plus().

Referenced by dt_noise_generator_simd().

rol32()

static uint32_t rol32 ( const uint32_t  x, const int  k  )

inlinestatic

Referenced by xoshiro128plus().

splitmix32()

static uint32_t splitmix32 ( const uint64_t  seed )

inlinestatic

uniform_noise()

static float uniform_noise ( const float  mu, const float  sigma, uint32_t  state[4]  )

inlinestatic

References xoshiro128plus().

Referenced by dt_noise_generator().

uniform_noise_simd()

static void uniform_noise_simd ( const dt_aligned_pixel_t  mu, const dt_aligned_pixel_t  sigma, uint32_t  state[4], dt_aligned_pixel_t  out  )

inlinestatic

References for_each_channel, and xoshiro128plus().

Referenced by dt_noise_generator_simd().

xoshiro128plus()

static float xoshiro128plus ( uint32_t  state[4] )

inlinestatic

References rol32().

Referenced by gaussian_noise(), gaussian_noise_simd(), poisson_noise(), poisson_noise_simd(), uniform_noise(), and uniform_noise_simd().