PyrImage Class Reference

Multi-resolution pyramidal image. More...

#include <pyrimage.h>

Public Member Functions
	PyrImage (IplImage *im, int nblev)
	~PyrImage ()
void	build ()
	build the pyramid from level 0 by calling cvPyrDown()
void	setPixel (unsigned x, unsigned y, CvScalar &val)
	Set a pixel a every precision level.
void	set (CvScalar val=cvScalarAll(0))
	Set all pixels of all levels to a constant value.
PyrImage *	clone () const
	make an exact copy of this image, reallocating all memory.
IplImage *	operator[] (unsigned i)
void	smoothLevel0 (int kernelSize=3)
	apply a gaussian blur on level 0.
void	setImageROI (CvRect rect)
	set a region of interest using OpenCV cvSetImageROI()
void	resetImageROI ()
	reset a region of interest using OpenCV cvResetImageROI()

Static Public Member Functions
static PyrImage *	load (int level, const char *filename, int color, bool fatal=true)
	try to load an image with cvLoadImage() and build a PyrImage.
static int	convCoord (int x, int from, int to=0, unsigned method=0)
	Convert a coordinate from one level to another.
static float	convCoordf (float x, int from, int to=0)
	Convert a subpixel coordinate from one level to another.

Public Attributes
const int	nbLev
IplImage **	images

Detailed Description

Multi-resolution pyramidal image.

Represent a multi-precision pyramidal image. images[0] is the largest image. images[nbLev-1] is the smallest image.

Each level is 4 times smaller than the previous one: width and height are divided by 2.

Definition at line 40 of file pyrimage.h.

Constructor & Destructor Documentation

PyrImage::PyrImage	(	IplImage *	im,
		int	nblev
	)

Definition at line 27 of file pyrimage.cpp.

References images, and nbLev.

Referenced by clone(), and load().

PyrImage::~PyrImage

(

)

Definition at line 39 of file pyrimage.cpp.

References images, and nbLev.

Member Function Documentation

void PyrImage::build

(

)

build the pyramid from level 0 by calling cvPyrDown()

Definition at line 45 of file pyrimage.cpp.

References images, and nbLev.

Referenced by object_view::build(), object_view::build_from_image_0(), load(), and pyr_yape::pyramidBlurDetect().

PyrImage * PyrImage::clone

(

)

const

make an exact copy of this image, reallocating all memory.

Definition at line 116 of file pyrimage.cpp.

References images, nbLev, and PyrImage().

int PyrImage::convCoord ( int  x, int  from, int  to = 0, unsigned  method = 0  )

static

Convert a coordinate from one level to another.

Definition at line 67 of file pyrimage.cpp.

Referenced by pyr_yape::save_image_of_detected_points(), setImageROI(), and setPixel().

float PyrImage::convCoordf ( float  x, int  from, int  to = 0  )

static

Convert a subpixel coordinate from one level to another.

Examples:

augment3d.cpp, fullcalib.cpp, multicam.cpp, multigl.cpp, and singlecalib.cpp.

Definition at line 86 of file pyrimage.cpp.

Referenced by add_detected_homography(), planar_object_recognizer::compute_support_for_affine_transformation(), planar_object_recognizer::detect_most_stable_model_points(), planar_object_recognizer::draw_input_image_points(), planar_object_recognizer::draw_matches(), planar_object_recognizer::draw_model_points(), planar_object_recognizer::estimate_affine_transformation(), planar_object_recognizer::estimate_homographic_transformation_linear_method(), planar_object_recognizer::estimate_homographic_transformation_nonlinear_method(), affine_image_generator::generate_random_examples(), geom_calib_draw(), yape::save_image_of_detected_points(), pyr_yape::save_image_of_detected_points(), planar_object_recognizer::save_image_of_model_points(), planar_object_recognizer::save_one_image_per_match(), planar_object_recognizer::save_one_image_per_match_input_to_model(), planar_object_recognizer::save_one_image_per_match_model_to_input(), and show_result().

PyrImage * PyrImage::load ( int  level, const char *  filename, int  color, bool  fatal = true  )

static

try to load an image with cvLoadImage() and build a PyrImage.

Returns

0 on failure or a valid PyrImage that has to be deleted by the caller.

Definition at line 51 of file pyrimage.cpp.

References build(), and PyrImage().

IplImage* PyrImage::operator[] ( unsigned  i )

inline

Definition at line 83 of file pyrimage.h.

References images.

void PyrImage::resetImageROI

(

)

reset a region of interest using OpenCV cvResetImageROI()

Definition at line 136 of file pyrimage.cpp.

References images, and nbLev.

void PyrImage::set

(

CvScalar

val = cvScalarAll(0)

)

Set all pixels of all levels to a constant value.

Definition at line 110 of file pyrimage.cpp.

References images, and nbLev.

void PyrImage::setImageROI

(

CvRect

rect

)

set a region of interest using OpenCV cvSetImageROI()

Definition at line 124 of file pyrimage.cpp.

References convCoord(), images, and nbLev.

void PyrImage::setPixel	(	unsigned	x,
		unsigned	y,
		CvScalar &	val
	)

Set a pixel a every precision level.

Compute coordinates for each precision level, and call cvSet2d() on it. This method is slow.

Parameters

x	x coordinate for level 0
y	y coordinate for level 0
val	pixel value to change.

Definition at line 97 of file pyrimage.cpp.

References convCoord(), images, and nbLev.

void PyrImage::smoothLevel0 ( int  kernelSize = 3 )

inline

apply a gaussian blur on level 0.

Definition at line 86 of file pyrimage.h.

References images.

Referenced by object_view::build_from_image_0().

Member Data Documentation

IplImage** PyrImage::images

Definition at line 98 of file pyrimage.h.

Referenced by build(), clone(), pyr_yape::detect(), operator[](), pyr_yape::pyramidBlurDetect(), PyrImage(), resetImageROI(), pyr_yape::select_level(), set(), setImageROI(), setPixel(), smoothLevel0(), and ~PyrImage().

const int PyrImage::nbLev

Definition at line 97 of file pyrimage.h.

Referenced by build(), clone(), object_view::comp_gradient(), pyr_yape::detect(), pyr_yape::pyramidBlurDetect(), PyrImage(), resetImageROI(), set(), setImageROI(), setPixel(), pyr_yape::stat_points(), pyr_yape::~pyr_yape(), and ~PyrImage().

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The documentation for this class was generated from the following files:

• /home/adrien/Téléchargements/bazar/bazar-1.3.1/starter/image/pyrimage.h
• /home/adrien/Téléchargements/bazar/bazar-1.3.1/starter/image/pyrimage.cpp