qgar::Dist34Image Class Reference
[Distance transformations]

#include <qgarlib/Dist34Image.H>

Inheritance diagram for qgar::Dist34Image:

List of all members.

Detailed Description

Distance transformation of all (black and white) components of a binary image, using 3-4 Chamfer distance.

The result is stored in an image of integer numbers: For a given pixel, the maximum value of the distance is the maximum value of an integer number.

Warning:: The content of the rows and columns contiguous to the borders of the resulting image is not relevant (all these pixels have a value equal to INT_MAX)

Todo:

In the constructor code, use pixel map pointers instead of nested loops (for iCnt and for jCnt) to get less tests (and thus save time).
The constructor performs a copy of the given image: If it is a deep copy, is it really necessary?
The way the distance is computed is rather weird: See class qgar::Dist8cBlackCCImage for example!
Given binary image must exclusively contain 0's and 1's.

Author:: Julien Perrin & Sami Kheder

Date:: March 24, 2003 16:16

Since:: Qgar 2.1.1

Definition at line 83 of file Dist34Image.H.

Public Types

Types

typedef IntImage::value_type value_type

Type of the elements stored in the marker map.

typedef value_type & reference

Reference to qgar::Dist34Image::value_type.

typedef const value_type & const_reference

Constant reference to qgar::Dist34Image::value_type.

typedef value_type * pointer

Pointer to qgar::Dist34Image::value_type.

typedef const value_type * const_pointer

Constant pointer to qgar::Dist34Image::value_type.

Public Member Functions

GenImage ()

Default constructor.

GenImage (unsigned int aWidth, unsigned int aHeight)

Initialize with given width and height.

GenImage (unsigned int aWidth, unsigned int aHeight, pointer aPtPixMap) throw (QgarErrorInvalidArg)

Initialize from a pixmap.

GenImage (const GenImage &anImg)

Copy constructor.

GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg)

Conversion of an image of the same type, using policies.

GenImage (const GenImage< U, UCheckPolicy > &anImg)

Initialize from an image with pixels of a type different from T.

GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg, const BoundingBox &aBox, value_type aPixVal=static_cast< value_type >(0))

Initialize by copying a rectangular area, defined by a bounding box, of a given image.

GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg, unsigned int aXTopLeft, unsigned int aYTopLeft, unsigned int aXBottomRight, unsigned int aYBottomRight, value_type aPixVal=static_cast< value_type >(0))

Initialize by copying a rectangular area, defined by the coordinates of its top left and bottom right corners, of a given image.

GenImage (AbstractPbmPlusFile &aPbmPlusFile)

Initialize with an image in a PBM+ file.

int width () const

Get the image width.

int height () const

Get the image height.

int bytesPerPixel () const

Get the number of bytes per pixel.

value_type pixel (unsigned int aX, unsigned int aY) const

Get a pixel value.

void row (unsigned int aRowIdx, pointer aRow) const

Get a row of pixels.

void column (unsigned int aColIdx, pointer aCol) const

Get a column of pixels.

pointer pPixel (unsigned int aRowIdx, unsigned int aColIdx) const

Get a pointer on a given pixel of the image.

pointer pRow (unsigned int aRowIdx) const

Get a pointer on a row of pixels.

pointer pColumn (unsigned int aColIdx) const

Get a pointer on a column of pixels.

pointer pPixMap () const

Get the pointer to the pixel map.

void setPixel (unsigned int aX, unsigned int aY, value_type aPixVal)

Set a pixel value.

void setRow (unsigned int aRowIdx, const_pointer const aRow)

Set a given row of pixels.

void setColumn (unsigned int aColIdx, const_pointer const aCol)

Set a given column of pixels.

void draw (const Segment &aSeg, value_type aPixVal=(value_type) 1)

Draw a segment in the pixel map.

GenImage shallowCopy ()

Shallow copy: The pixel map of the current image is not duplicated.

GenImage< value_type, GenImage_NoCheck > operator+ (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Same as function qgar::GenImage::plus.

GenImage & operator+= (const GenImage< value_type, OtherCheckPolicy > &anImg)

Same as function qgar::GenImage::plusEqual.

GenImage< value_type, GenImage_NoCheck > operator- (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Same as function qgar::GenImage::minus.

GenImage & operator-= (const GenImage< value_type, OtherCheckPolicy > &anImg)

Same as function qgar::GenImage::minusEqual.

GenImage< value_type, GenImage_NoCheck > operator * (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Same as function qgar::GenImage::times.

GenImage & operator *= (const GenImage< value_type, OtherCheckPolicy > &anImg)

Same as function qgar::GenImage::timesEqual.

GenImage< value_type, GenImage_NoCheck > plus (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Add each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

GenImage & plusEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)

Add a given image to the current image.

GenImage< value_type, GenImage_NoCheck > minus (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Subtract each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

GenImage & minusEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)

Subtract a given image to the current image.

GenImage< value_type, GenImage_NoCheck > times (const GenImage< value_type, OtherCheckPolicy > &anImg) const

Multiply each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

GenImage & timesEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)

Multiply a given image by the current image.

void save (AbstractPbmPlusFile &aPbmPlusFile) const

Store current image into a PBM+ file.

int borderRows (int aRowIdx) const

Mirror border rows for convolutions.

int borderCols (int aColIdx) const

Mirror border columns for convolutions.

void checkRange (const int *const aPPixmap, int aWidth, const BoundingBox &aRange) const

Check a range.

Constructors

Dist34Image (const BinaryImage &anImg)

Construct from given binary image.

Protected Member Functions

GenImage (unsigned int aBytesCnt, int *aPtRefCnt, unsigned int aWidth, unsigned int aHeight, pointer aPtPixMap)

Initialize from all data.

void copyBox (const GenImage< value_type, GenImage_NoCheck > &anImg, unsigned int aXTopLeft, unsigned int aYTopLeft, unsigned int aXBottomRight, unsigned int aYBottomRight, value_type aPixVal=static_cast< value_type >(0))

Copy a rectangular area of the given image into the current image.

Protected Attributes

unsigned int _bytesPerPixel

Number of bytes per pixel.

int * _pRefCnt

Reference counter.

int _width

Image width.

int _height

Image height.

pointer _pPixMap

Pointer to the pixel map, organized as consecutive rows.

Member Typedef Documentation

typedef const value_type* qgar::Dist34Image::const_pointer

Constant pointer to qgar::Dist34Image::value_type.

Reimplemented from qgar::GenImage< int >.
Definition at line 121 of file Dist34Image.H.

typedef const value_type& qgar::Dist34Image::const_reference

Constant reference to qgar::Dist34Image::value_type.

Reimplemented from qgar::GenImage< int >.
Definition at line 111 of file Dist34Image.H.

typedef value_type* qgar::Dist34Image::pointer

Pointer to qgar::Dist34Image::value_type.

Reimplemented from qgar::GenImage< int >.
Definition at line 116 of file Dist34Image.H.

typedef value_type& qgar::Dist34Image::reference

Reference to qgar::Dist34Image::value_type.

Reimplemented from qgar::GenImage< int >.
Definition at line 106 of file Dist34Image.H.

typedef IntImage::value_type qgar::Dist34Image::value_type

Type of the elements stored in the marker map.

Reimplemented from qgar::GenImage< int >.
Definition at line 101 of file Dist34Image.H.

Constructor & Destructor Documentation

qgar::Dist34Image::Dist34Image ( const BinaryImage & anImg )

Construct from given binary image.

Parameters:

anImg a binary image

Definition at line 57 of file Dist34Image.C.
References qgar::GenImage< int >::_height, qgar::GenImage< int >::_pPixMap, qgar::GenImage< int >::_width, qgar::GenImage< int >::pPixMap(), qgar::GenImage< T, CheckPolicy >::pPixMap(), qgar::QGE_BW_BLACK, qgar::QGE_BW_WHITE, and qgar::GenImage< T, CheckPolicy >::width().

Member Function Documentation

int qgar::GenImage< int , GenImage_NoCheck >::borderCols ( int aColIdx ) const [inherited]

Mirror border columns for convolutions.

Parameters:

aColIdx index of the column

int qgar::GenImage< int , GenImage_NoCheck >::borderRows ( int aRowIdx ) const [inherited]

Mirror border rows for convolutions.

Parameters:

aRowIdx index of the row

int qgar::GenImage< int , GenImage_NoCheck >::bytesPerPixel ( ) const [inline, inherited]

Get the number of bytes per pixel.

void qgar::GenImage_NoCheck< int >::checkRange ( const int *const aPPixmap,

int aWidth,

const BoundingBox & aRange

) const [inline, inherited]

Check a range.

Parameters:

aPPixmap a pointer to the pixel map of an image

aWidth

aRange

Exceptions:

qgar::QgarErrorDomain (pixel value out of range)

Definition at line 110 of file GenImage.H.

void qgar::GenImage< int , GenImage_NoCheck >::column ( unsigned int aColIdx,

pointer aCol

) const [inherited]

Get a column of pixels.

Parameters:

aColIdx column index in image

aCol buffer to store the column of pixels

Warning:
The behavior of the function is undefined if the buffer size is smaller than the column size.

void qgar::GenImage< int , GenImage_NoCheck >::copyBox ( const GenImage< value_type, GenImage_NoCheck > & anImg,

unsigned int aXTopLeft,

unsigned int aYTopLeft,

unsigned int aXBottomRight,

unsigned int aYBottomRight,

value_type aPixVal = static_cast<value_type>(0)

) [protected, inherited]

Copy a rectangular area of the given image into the current image.
The sides of the rectangle are parallel to the coordinate axis.

Parameters:

anImg initial image

aXTopLeft X coordinate of the area top left corner

aYTopLeft Y coordinate of the area left corner

aXBottomRight X coordinate of the area bottom right corner

aYBottomRight Y coordinate of the area bottom right corner

aPixVal pixel value to fill non-overlaping zones (default (T)0)

Warning:
The intersection between the rectangle and the given image must be non-empty. If the overlaping zone is only partial, the non-overlaping zone(s) are filled with pixels having value aPixVal.

Todo:
To be reimplemented.

void qgar::GenImage< int , GenImage_NoCheck >::draw ( const Segment & aSeg,

value_type aPixVal = (value_type)1

) [inherited]

Draw a segment in the pixel map.
The segment pixels are set using Bresenham's algorithm. See W.M. Newman and R.F. Sproull, Principles of Interactive Computer Graphics, pp. 25-26.

Parameters:

aSeg segment to be drawn

aPixVal value to set pixels with (default (T)1)

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( unsigned int aBytesCnt,

int * aPtRefCnt,

unsigned int aWidth,

unsigned int aHeight,

pointer aPtPixMap

) [protected, inherited]

Initialize from all data.

Parameters:

aBytesCnt bytes per pixel

aPtRefCnt pointer to a reference counter

aWidth width of the image

aHeight height of the image

aPtPixMap pointer to a pixel map

Warning:
Using this constructor may lead to serious bugs due to dynamic memory space management. Be sure that the value of the given reference counter (pointed by aPtRefCnt) is correct: If the given pixel map (pointed by aPtPixMap) is not shared by another object, this value must be 0. Otherwise, one must add 1 to the value, before using the constructor:
(*_pRefCnt)++;

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( AbstractPbmPlusFile & aPbmPlusFile ) [explicit, inherited]

Initialize with an image in a PBM+ file.
The given PBM+ file is opened (in READ ONLY mode) at the call, and closed before returning.

Parameters:

aPbmPlusFile a PBM+ file containing an image

Warning:
This kind of conversion must be explicitely specified by the client.

Todo:
Constructor qgar::GenImage::GenImage(AbstractPbmPlusFile&) should just work when T is instantiated by an unsigned char because function qgar::AbstractPbmPlusFile::readRow only works with rows of unsigned integers whereas the first argument of function qgar::GenImage::setRow is a pointer to a row of type T!

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( const GenImage< value_type, OtherCheckPolicy > & anImg,

unsigned int aXTopLeft,

unsigned int aYTopLeft,

unsigned int aXBottomRight,

unsigned int aYBottomRight,

value_type aPixVal = static_cast<value_type>(0)

) [inherited]

Initialize by copying a rectangular area, defined by the coordinates of its top left and bottom right corners, of a given image.
The rectangle sides are parallel to the coordinate axis.

Parameters:

anImg initial image

aXTopLeft X coordinate of the area top left corner

aYTopLeft Y coordinate of the area top left corner

aXBottomRight X coordinate of the area bottom right corner

aYBottomRight Y coordinate of the area bottom right corner

aPixVal pixel value to fill non-overlaping zones (default (T)0)

Warning:
The intersection between the rectangle and the given image must be non-empty. If the overlaping zone is only partial, the non-overlaping zone(s) are filled with pixels having value aPixVal.

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( const GenImage< value_type, OtherCheckPolicy > & anImg,

const BoundingBox & aBox,

value_type aPixVal = static_cast<value_type>(0)

) [inherited]

Initialize by copying a rectangular area, defined by a bounding box, of a given image.
The rectangle sides are parallel to the coordinate axis.

Parameters:

anImg initial image

aBox box defining the rectangular area to copy

aPixVal pixel value to fill non-overlaping zones (default (T)0)

Warning:
The intersection between the rectangle and the given image must be non-empty. If the overlaping zone is only partial, the non-overlaping zone(s) are filled with pixels having value aPixVal.

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( const GenImage< U, UCheckPolicy > & anImg ) [explicit, inherited]

Initialize from an image with pixels of a type different from T.

Parameters:

anImg an image with pixels of type U (different from T)

Warning:
Perform a deep copy: The pixel map of the source image is duplicated. This kind of conversion must be explicitely specified by the client.

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( const GenImage< value_type, OtherCheckPolicy > & anImg ) [inherited]

Conversion of an image of the same type, using policies.

Parameters:

anImg an image with the same pixel type having different policies

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( const GenImage< int > & anImg ) [inherited]

Copy constructor.
Perform a deep copy: The pixel map of the source image is duplicated.

Parameters:

anImg image to be copied

See also:
qgar::GenImage::operator= and qgar::GenImage::shallowCopy

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( unsigned int aWidth,

unsigned int aHeight,

pointer aPtPixMap

) throw (QgarErrorInvalidArg) [inherited]

Initialize from a pixmap.

Parameters:

aWidth width of the image (in pixels)

aHeight height of the image (in pixels)

aPtPixMap pointer to a pixel map

Warning:
This constructor takes the ownership of the given pixmap. The created instance will be responsible for deleting it.

Exceptions:

qgar::QgarErrorInvalidArg (pixel map not allocated)

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( unsigned int aWidth,

unsigned int aHeight

) [inherited]

Initialize with given width and height.

Parameters:

aWidth width of the image (in pixels)

aHeight height of the image (in pixels)

Warning:
The pixel map is allocated but is not initialized.

qgar::GenImage< int , GenImage_NoCheck >::GenImage ( ) [inherited]

Default constructor.
Set 0 to width, to height, to pointer to pixel map, and to reference counter.

int qgar::GenImage< int , GenImage_NoCheck >::height ( ) const [inline, inherited]

Get the image height.

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::minus ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Subtract each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

Returns:
A new image constructed from this new pixel map

Parameters:

anImg image to be subtracted to the current image

Warning:
Given and current images must have the same width and height. The subtraction is not normalized: Each result is stored in the new pixel map without any checking.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::minusEqual ( const GenImage< value_type, OtherCheckPolicy > & anImg ) throw (QgarErrorDomain) [inherited]

Subtract a given image to the current image.

Parameters:

anImg image to be subtracted to the current image

Subtract each pixel of the given image to the corresponding pixel of the current image and store each result in the pixel map of the current image.

Warning:
Given and current images must have the same width and height. The subtraction is not normalized: Each result is stored in the pixel map of the current image without any checking.

Exceptions:

qgar::QgarErrorDomain (image sizes do not match)

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::operator * ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Same as function qgar::GenImage::times.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::operator *= ( const GenImage< value_type, OtherCheckPolicy > & anImg ) [inherited]

Same as function qgar::GenImage::timesEqual.

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::operator+ ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Same as function qgar::GenImage::plus.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::operator+= ( const GenImage< value_type, OtherCheckPolicy > & anImg ) [inherited]

Same as function qgar::GenImage::plusEqual.

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::operator- ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Same as function qgar::GenImage::minus.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::operator-= ( const GenImage< value_type, OtherCheckPolicy > & anImg ) [inherited]

Same as function qgar::GenImage::minusEqual.

pointer qgar::GenImage< int , GenImage_NoCheck >::pColumn ( unsigned int aColIdx ) const [inline, inherited]

Get a pointer on a column of pixels.

Parameters:

aColIdx column index in image

value_type qgar::GenImage< int , GenImage_NoCheck >::pixel ( unsigned int aX,

unsigned int aY

) const [inherited]

Get a pixel value.

Parameters:

aX X coordinate (column index) of the pixel

aY Y coordinate (row index) of the pixel

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::plus ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Add each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

Parameters:

anImg image to be added to the current image

Returns:
A new image constructed from this new pixel map

Warning:
Given and current images must have the same width and height. The addition is not normalized: Each result is stored in the new pixel map without any checking.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::plusEqual ( const GenImage< value_type, OtherCheckPolicy > & anImg ) throw (QgarErrorDomain) [inherited]

Add a given image to the current image.
Add each pixel of the given image to the corresponding pixel of the current image and store each result in the pixel map of the current image.

Parameters:

anImg image to be added to the current image

Warning:
Given and current images must have the same width and height. The addition is not normalized: Each result is stored in the pixel map of the current image without any checking.

Exceptions:

qgar::QgarErrorDomain (image sizes do not match)

pointer qgar::GenImage< int , GenImage_NoCheck >::pPixel ( unsigned int aRowIdx,

unsigned int aColIdx

) const [inline, inherited]

Get a pointer on a given pixel of the image.

Parameters:

aRowIdx row index of the pixel

aColIdx column index of the pixel

pointer qgar::GenImage< int , GenImage_NoCheck >::pPixMap ( ) const [inline, inherited]

Get the pointer to the pixel map.

Referenced by Dist34Image().

pointer qgar::GenImage< int , GenImage_NoCheck >::pRow ( unsigned int aRowIdx ) const [inline, inherited]

Get a pointer on a row of pixels.

Parameters:

aRowIdx row index in image

void qgar::GenImage< int , GenImage_NoCheck >::row ( unsigned int aRowIdx,

pointer aRow

) const [inherited]

Get a row of pixels.

Parameters:

aRowIdx row index in image

aRow buffer to store the row of pixels

Warning:
The behavior of the function is undefined if the buffer size is smaller than the row size.

void qgar::GenImage< int , GenImage_NoCheck >::save ( AbstractPbmPlusFile & aPbmPlusFile ) const [inherited]

Store current image into a PBM+ file.
The given PBM+ file is opened (in WRITE ONLY mode) at the call, and closed before returning.

Parameters:

aPbmPlusFile a PBM+ file

void qgar::GenImage< int , GenImage_NoCheck >::setColumn ( unsigned int aColIdx,

const_pointer const aCol

) [inherited]

Set a given column of pixels.

Parameters:

aColIdx column index in image

aCol column of pixels to store into the pixel map

void qgar::GenImage< int , GenImage_NoCheck >::setPixel ( unsigned int aX,

unsigned int aY,

value_type aPixVal

) [inherited]

Set a pixel value.

Parameters:

aX X coordinate (column index) of the pixel

aY Y coordinate (row index) of the pixel

aPixVal value of the pixel

void qgar::GenImage< int , GenImage_NoCheck >::setRow ( unsigned int aRowIdx,

const_pointer const aRow

) [inherited]

Set a given row of pixels.

Parameters:

aRowIdx row index in image

aRow row of pixels to store into the pixel map

GenImage qgar::GenImage< int , GenImage_NoCheck >::shallowCopy ( ) [inherited]

Shallow copy: The pixel map of the current image is not duplicated.

See also:
qgar::GenImage::operator= and copy constructor.

Warning:
When the copy is completed, the pixel map of the new image is the same memory space as the pixel map of the current image.

GenImage<value_type, GenImage_NoCheck> qgar::GenImage< int , GenImage_NoCheck >::times ( const GenImage< value_type, OtherCheckPolicy > & anImg ) const [inherited]

Multiply each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.

Parameters:

anImg image to be multiplied by the current image

Returns:
A new image constructed from this new pixel map

Warning:
Given and current images must have the same width and height. The multiplication is not normalized: Each result is stored in the new pixel map without any checking.

GenImage& qgar::GenImage< int , GenImage_NoCheck >::timesEqual ( const GenImage< value_type, OtherCheckPolicy > & anImg ) throw (QgarErrorDomain) [inherited]

Multiply a given image by the current image.
Multiply each pixel of the given image by the corresponding pixel of the current image and store each result in the pixel map of the current image.

Parameters:

anImg image to be multiplied by the current image

Warning:
Given and current images must have the same width and height. The multiplication is not normalized: Each result is stored in the pixel map of the current image without any checking.

Exceptions:

qgar::QgarErrorDomain (image sizes do not match)

int qgar::GenImage< int , GenImage_NoCheck >::width ( ) const [inline, inherited]

Get the image width.

Member Data Documentation

unsigned int qgar::GenImage< int , GenImage_NoCheck >::_bytesPerPixel [protected, inherited]

Number of bytes per pixel.

Definition at line 1096 of file GenImage.H.

int qgar::GenImage< int , GenImage_NoCheck >::_height [protected, inherited]

Image height.

Definition at line 1114 of file GenImage.H.
Referenced by Dist34Image().

pointer qgar::GenImage< int , GenImage_NoCheck >::_pPixMap [protected, inherited]

Pointer to the pixel map, organized as consecutive rows.

Definition at line 1120 of file GenImage.H.
Referenced by Dist34Image().

int* qgar::GenImage< int , GenImage_NoCheck >::_pRefCnt [protected, inherited]

Reference counter.
Its value represent the number of other images with which the current image shares its pixel map.
Definition at line 1104 of file GenImage.H.

int qgar::GenImage< int , GenImage_NoCheck >::_width [protected, inherited]

Image width.

Definition at line 1109 of file GenImage.H.
Referenced by Dist34Image().

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


Public Types
Types
typedef IntImage::value_type	value_type
	Type of the elements stored in the marker map.
typedef value_type &	reference
	Reference to qgar::Dist34Image::value_type.
typedef const value_type &	const_reference
	Constant reference to qgar::Dist34Image::value_type.
typedef value_type *	pointer
	Pointer to qgar::Dist34Image::value_type.
typedef const value_type *	const_pointer
	Constant pointer to qgar::Dist34Image::value_type.
Public Member Functions
	GenImage ()
	Default constructor.
	GenImage (unsigned int aWidth, unsigned int aHeight)
	Initialize with given width and height.
	GenImage (unsigned int aWidth, unsigned int aHeight, pointer aPtPixMap) throw (QgarErrorInvalidArg)
	Initialize from a pixmap.
	GenImage (const GenImage &anImg)
	Copy constructor.
	GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg)
	Conversion of an image of the same type, using policies.
	GenImage (const GenImage< U, UCheckPolicy > &anImg)
	Initialize from an image with pixels of a type different from T.
	GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg, const BoundingBox &aBox, value_type aPixVal=static_cast< value_type >(0))
	Initialize by copying a rectangular area, defined by a bounding box, of a given image.
	GenImage (const GenImage< value_type, OtherCheckPolicy > &anImg, unsigned int aXTopLeft, unsigned int aYTopLeft, unsigned int aXBottomRight, unsigned int aYBottomRight, value_type aPixVal=static_cast< value_type >(0))
	Initialize by copying a rectangular area, defined by the coordinates of its top left and bottom right corners, of a given image.
	GenImage (AbstractPbmPlusFile &aPbmPlusFile)
	Initialize with an image in a PBM+ file.
int	width () const
	Get the image width.
int	height () const
	Get the image height.
int	bytesPerPixel () const
	Get the number of bytes per pixel.
value_type	pixel (unsigned int aX, unsigned int aY) const
	Get a pixel value.
void	row (unsigned int aRowIdx, pointer aRow) const
	Get a row of pixels.
void	column (unsigned int aColIdx, pointer aCol) const
	Get a column of pixels.
pointer	pPixel (unsigned int aRowIdx, unsigned int aColIdx) const
	Get a pointer on a given pixel of the image.
pointer	pRow (unsigned int aRowIdx) const
	Get a pointer on a row of pixels.
pointer	pColumn (unsigned int aColIdx) const
	Get a pointer on a column of pixels.
pointer	pPixMap () const
	Get the pointer to the pixel map.
void	setPixel (unsigned int aX, unsigned int aY, value_type aPixVal)
	Set a pixel value.
void	setRow (unsigned int aRowIdx, const_pointer const aRow)
	Set a given row of pixels.
void	setColumn (unsigned int aColIdx, const_pointer const aCol)
	Set a given column of pixels.
void	draw (const Segment &aSeg, value_type aPixVal=(value_type) 1)
	Draw a segment in the pixel map.
GenImage	shallowCopy ()
	Shallow copy: The pixel map of the current image is not duplicated.
GenImage< value_type, GenImage_NoCheck >	operator+ (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Same as function qgar::GenImage::plus.
GenImage &	operator+= (const GenImage< value_type, OtherCheckPolicy > &anImg)
	Same as function qgar::GenImage::plusEqual.
GenImage< value_type, GenImage_NoCheck >	operator- (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Same as function qgar::GenImage::minus.
GenImage &	operator-= (const GenImage< value_type, OtherCheckPolicy > &anImg)
	Same as function qgar::GenImage::minusEqual.
GenImage< value_type, GenImage_NoCheck >	operator * (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Same as function qgar::GenImage::times.
GenImage &	operator *= (const GenImage< value_type, OtherCheckPolicy > &anImg)
	Same as function qgar::GenImage::timesEqual.
GenImage< value_type, GenImage_NoCheck >	plus (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Add each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.
GenImage &	plusEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)
	Add a given image to the current image.
GenImage< value_type, GenImage_NoCheck >	minus (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Subtract each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.
GenImage &	minusEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)
	Subtract a given image to the current image.
GenImage< value_type, GenImage_NoCheck >	times (const GenImage< value_type, OtherCheckPolicy > &anImg) const
	Multiply each pixel of the given image to the corresponding pixel of the current image and store each result in a new pixel map.
GenImage &	timesEqual (const GenImage< value_type, OtherCheckPolicy > &anImg) throw (QgarErrorDomain)
	Multiply a given image by the current image.
void	save (AbstractPbmPlusFile &aPbmPlusFile) const
	Store current image into a PBM+ file.
int	borderRows (int aRowIdx) const
	Mirror border rows for convolutions.
int	borderCols (int aColIdx) const
	Mirror border columns for convolutions.
void	checkRange (const int *const aPPixmap, int aWidth, const BoundingBox &aRange) const
	Check a range.
Constructors
	Dist34Image (const BinaryImage &anImg)
	Construct from given binary image.
Protected Member Functions
	GenImage (unsigned int aBytesCnt, int *aPtRefCnt, unsigned int aWidth, unsigned int aHeight, pointer aPtPixMap)
	Initialize from all data.
void	copyBox (const GenImage< value_type, GenImage_NoCheck > &anImg, unsigned int aXTopLeft, unsigned int aYTopLeft, unsigned int aXBottomRight, unsigned int aYBottomRight, value_type aPixVal=static_cast< value_type >(0))
	Copy a rectangular area of the given image into the current image.
Protected Attributes
unsigned int	_bytesPerPixel
	Number of bytes per pixel.
int *	_pRefCnt
	Reference counter.
int	_width
	Image width.
int	_height
	Image height.
pointer	_pPixMap
	Pointer to the pixel map, organized as consecutive rows.

qgar::Dist34Image Class Reference [Distance transformations]

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

qgar::Dist34Image Class Reference
[Distance transformations]