src/wavelet2D.c File Reference

#include <it/types.h>
#include <it/wavelet.h>
#include <it/wavelet2D.h>
#include <it/io.h>

Go to the source code of this file.

Defines
#define	reset_pointers()
#define	increment_pointers()
#define	adjust_pointers(odd)
#define	hlifting(dest, source, constant, alt_source_pre, alt_source, alt_source_post, w, h, odd)
#define	hlifting(dest, source, constant, alt_source_pre, alt_source, alt_source_post, w, h, odd)
#define	vlifting(dest, source, constant, alt_source_pre, alt_source, alt_source_post, line, w, h)
#define	scale(dest, scale, count)
#define	shift_up(x, l)   ((x + ~(-1 << l)) >> l)
#define	round_up(x, l)   (shift_up(x, l) << l)
Functions
static int	__wavelet2D_split (it_wavelet2D_t *wavelet)
static int	__wavelet2D_merge (it_wavelet2D_t *wavelet)
static int	__wavelet_flatten (it_wavelet2D_t *it_this, mat image)
static int	__wavelet_unflatten (it_wavelet2D_t *it_this, mat image)
static Mat	__it_wavelet2D_transform (it_transform2D_t *transform, Mat __image)
static Mat	__it_wavelet2D_itransform (it_transform2D_t *transform, Mat __flat)
static int	__it_wavelet2D_copy (it_wavelet2D_t *it_this, it_wavelet2D_t *source)
static void	__wavelet2D_get_output_size (it_transform2D_t *transform, idx_t *width, idx_t *height)
static void	__wavelet2D_set_size (it_transform2D_t *transform, idx_t width, idx_t height)
static void	__wavelet2D_get_size (it_transform2D_t *transform, idx_t *width, idx_t *height)
static void	__wavelet2D_destructor (it_object_t *it_this)
	it_instanciate (it_wavelet2D_t)
mat *	it_wavelet2D_split (mat wav, int nb_levels)
mat	it_wavelet2D_merge (mat *subbands, int nb_levels)
mat	it_dwt2D (mat m, it_wavelet_lifting_t const *lifting, int levels)
mat	it_idwt2D (mat t, it_wavelet_lifting_t const *lifting, int levels)

---

Define Documentation

#define adjust_pointers

(

odd

)

Value:

do {            \
  pixels+=odd;          \
  if(odd == 1) low++;       \
  if(odd == -1) high--;       \
} while(0)

Definition at line 110 of file wavelet2D.c.

#define hlifting	(	dest,
		source,
		constant,
		alt_source_pre,
		alt_source,
		alt_source_post,
		w,
		h,
		odd		)

Value:

do {                  \
  reset_pointers();             \
  for(y = 0; y < (h); y++) {            \
    (dest) = (source) + (constant) * (alt_source_pre);      \
    increment_pointers();           \
                  \
    for(x = 1; x < (w)-1; x++) {          \
      (dest) = (source) + (constant) * (alt_source);      \
      increment_pointers();           \
    }                 \
                      \
    (dest) = (source) + (constant) * (alt_source_post);     \
    increment_pointers();           \
    adjust_pointers(odd);           \
  }                 \
} while(0)

Definition at line 136 of file wavelet2D.c.

#define hlifting	(	dest,
		source,
		constant,
		alt_source_pre,
		alt_source,
		alt_source_post,
		w,
		h,
		odd		)

Value:

do {                  \
  reset_pointers();             \
  for(y = 0; y < (h); y++) {            \
    (dest) = (source) + (constant) * (alt_source_pre);      \
    increment_pointers();           \
                  \
    for(x = 1; x < (w)-1; x++) {          \
      (dest) = (source) + (constant) * (alt_source);      \
      increment_pointers();           \
    }                 \
                      \
    (dest) = (source) + (constant) * (alt_source_post);     \
    increment_pointers();           \
    adjust_pointers(odd);           \
  }                 \
} while(0)

Definition at line 136 of file wavelet2D.c.

Referenced by __wavelet2D_merge(), and __wavelet2D_split().

 

#define increment_pointers

(

)

Value:

do {            \
  pixels+=2;          \
  low++;          \
  high++;         \
  high_low++;         \
  high_high++;          \
  low_high++;         \
  low_low++;          \
} while(0)

Definition at line 99 of file wavelet2D.c.

 

#define reset_pointers

(

)

Value:

do {            \
  pixels = buffer + page;     \
  low = buffer;         \
  high = buffer + (page >> 1);      \
  low_low =   buffer + (page >> 1) + 0 * (page >> 2); \
  low_high =  buffer + (page >> 1) + 1 * (page >> 2); \
  high_low =  buffer + (page >> 1) + 2 * (page >> 2); \
  high_high = buffer + (page >> 1) + 3 * (page >> 2); \
} while(0)

Definition at line 88 of file wavelet2D.c.

Referenced by __wavelet2D_split().

#define round_up	(	x,
		l		)	(shift_up(x, l) << l)

Definition at line 185 of file wavelet2D.c.

Referenced by __it_wavelet2D_itransform(), __it_wavelet2D_transform(), __wavelet2D_merge(), __wavelet2D_set_size(), __wavelet2D_split(), __wavelet_flatten(), and __wavelet_unflatten().

#define scale	(	dest,
		scale,
		count		)

Value:

do {            \
  reset_pointers();       \
  for(x = 0; x < (count); x++) {    \
    (dest)[0] *= (scale);     \
    increment_pointers();     \
  }           \
} while(0)

Definition at line 175 of file wavelet2D.c.

Referenced by __wavelet2D_merge(), __wavelet2D_split(), __wavelet_merge(), __wavelet_split(), mat_hessenberg(), mat_svd(), and mat_tridiag().

#define shift_up	(	x,
		l		)	((x + ~(-1 << l)) >> l)

Definition at line 184 of file wavelet2D.c.

#define vlifting	(	dest,
		source,
		constant,
		alt_source_pre,
		alt_source,
		alt_source_post,
		line,
		w,
		h		)

Value:

do {                  \
  reset_pointers();             \
  for(x = 0; x < w; x ++) {           \
    (dest) = (source) + (constant) * (alt_source_pre);      \
    increment_pointers();           \
  }                 \
  (line) += p;                \
  for(y = 1; y < h-1; y ++) {           \
    for(x = 0; x < w; x ++) {           \
      (dest) = (source) + (constant) * (alt_source);      \
      increment_pointers();           \
    }                 \
    (line) += p;              \
  }                 \
  for(x = 0; x < w; x ++) {           \
    (dest) = (source) + (constant) * (alt_source_post);     \
    increment_pointers();           \
  }                 \
} while(0)

Definition at line 154 of file wavelet2D.c.

Referenced by __wavelet2D_merge(), and __wavelet2D_split().

---

Function Documentation

static int __it_wavelet2D_copy	(	it_wavelet2D_t *	it_this,
		it_wavelet2D_t *	source
	)			[static]

Definition at line 840 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _it_wavelet2D_::height, it_transform2D_set_size, _it_wavelet2D_::levels, vec_copy(), and _it_wavelet2D_::width.

Referenced by it_instanciate().

static Mat __it_wavelet2D_itransform	(	it_transform2D_t *	transform,
		Mat	__flat
	)			[static]

Definition at line 794 of file wavelet2D.c.

References __wavelet2D_merge(), __wavelet_unflatten(), _it_wavelet2D_::buffer, _it_wavelet2D_::height, it_transform2D_clear_size, it_transform2D_set_size, IT_WAVELET2D, _it_wavelet2D_::level, _it_wavelet2D_::levels, mat_height(), mat_new(), mat_width(), round_up, Vec_header, and _it_wavelet2D_::width.

Referenced by it_instanciate().

static Mat __it_wavelet2D_transform	(	it_transform2D_t *	transform,
		Mat	__image
	)			[static]

Definition at line 747 of file wavelet2D.c.

References __wavelet2D_split(), __wavelet_flatten(), _it_wavelet2D_::buffer, _it_wavelet2D_::height, it_transform2D_clear_size, it_transform2D_set_size, IT_WAVELET2D, _it_wavelet2D_::level, _it_wavelet2D_::levels, mat_height(), mat_new(), mat_width(), round_up, Vec_header, and _it_wavelet2D_::width.

Referenced by it_instanciate().

static void __wavelet2D_destructor

(

it_object_t *

it_this

)

[static]

Definition at line 885 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _it_wavelet2D_::height, _it_wavelet2D_::it_overloaded(), IT_WAVELET2D, vec_delete(), and _it_wavelet2D_::width.

Referenced by it_instanciate().

static void __wavelet2D_get_output_size	(	it_transform2D_t *	transform,
		idx_t *	width,
		idx_t *	height
	)			[static]

Definition at line 853 of file wavelet2D.c.

Referenced by it_instanciate().

static void __wavelet2D_get_size	(	it_transform2D_t *	transform,
		idx_t *	width,
		idx_t *	height
	)			[static]

Definition at line 876 of file wavelet2D.c.

References _it_wavelet2D_::height, IT_WAVELET2D, and _it_wavelet2D_::width.

Referenced by it_instanciate().

static int __wavelet2D_merge

(

it_wavelet2D_t *

wavelet

)

[static]

Definition at line 408 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _wavelet_lifting_::count, _it_wavelet2D_::height, hlifting, IT_EINVAL, _it_wavelet2D_::level, _it_wavelet2D_::levels, _it_wavelet2D_::lifting, round_up, _wavelet_lifting_::scale, scale, shift_up, _wavelet_lifting_::step, vlifting, and _it_wavelet2D_::width.

Referenced by __it_wavelet2D_itransform().

static void __wavelet2D_set_size	(	it_transform2D_t *	transform,
		idx_t	width,
		idx_t	height
	)			[static]

Definition at line 859 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _it_wavelet2D_::height, IT_WAVELET2D, _it_wavelet2D_::levels, round_up, vec_delete(), vec_new(), and _it_wavelet2D_::width.

Referenced by it_instanciate().

static int __wavelet2D_split

(

it_wavelet2D_t *

wavelet

)

[static]

Definition at line 188 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _wavelet_lifting_::count, _it_wavelet2D_::height, hlifting, IT_EINVAL, _it_wavelet2D_::level, _it_wavelet2D_::levels, _it_wavelet2D_::lifting, reset_pointers, round_up, _wavelet_lifting_::scale, scale, shift_up, _wavelet_lifting_::step, vlifting, and _it_wavelet2D_::width.

Referenced by __it_wavelet2D_transform().

static int __wavelet_flatten	(	it_wavelet2D_t *	it_this,
		mat	image
	)			[static]

Definition at line 628 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _it_wavelet2D_::height, IT_EINVAL, _it_wavelet2D_::level, _it_wavelet2D_::levels, mat_height(), mat_width(), round_up, and _it_wavelet2D_::width.

Referenced by __it_wavelet2D_transform().

static int __wavelet_unflatten	(	it_wavelet2D_t *	it_this,
		mat	image
	)			[static]

Definition at line 687 of file wavelet2D.c.

References _it_wavelet2D_::buffer, _it_wavelet2D_::height, IT_EINVAL, _it_wavelet2D_::level, _it_wavelet2D_::levels, mat_height(), mat_width(), round_up, and _it_wavelet2D_::width.

Referenced by __it_wavelet2D_itransform().