HdrImage Class Reference

The HdrImage class is a representation of an HDR image. More...

List of all members.

Public Types
enum	ColorSpace { NONE, RGB, Yxy }
Public Member Functions
	HdrImage ()
	HdrImage (const HdrImage &im)
	HdrImage (const QString &fileName)
QSize	size () const
ColorSpace	colorSpace () const
bool	isNull () const
HdrImage *	toRgb (const float mXyzToRgb[3][3]) const
void	load (const QString &fileName)
Color *	operator[] (int i)
const Color *	operator[] (int i) const
bool	hasY () const
int	YIndex () const
Private Member Functions
void	resize (int width, int height)
HdrImage *	fromYxyToRgb (const float m[3][3]) const
Private Attributes
int	width
int	height
Color *	data
bool	null
ColorSpace	space
float	pMin
float	pMax
Static Private Attributes
static int	YIndices []

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Detailed Description

The HdrImage class is a representation of an HDR image.

The image data is stored as an array of Color and is accessible through the operator [].

This class can handle several color spaces and provides transformations between them. At the moment, only RGB and Yxy color spaces are available.

Definition at line 27 of file HdrImage.h.

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Constructor & Destructor Documentation

HdrImage::HdrImage

(

)

Constructs an empty image.

Definition at line 50 of file HdrImage.cpp.

HdrImage::HdrImage

(

const HdrImage &

im )

Constructs a copy of im.

Definition at line 63 of file HdrImage.cpp.

HdrImage::HdrImage

(

const QString &

fileName )

Constructs an image and tries to load the image from the file with the given fileName.

Definition at line 78 of file HdrImage.cpp.

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Member Function Documentation

HdrImage::ColorSpace HdrImage::colorSpace

(

)

const

Returns the color space of the image.

Definition at line 104 of file HdrImage.cpp.

HdrImage * HdrImage::fromYxyToRgb

(

const float

matrix[3][3] )

const [private]

Returns a RGB copy of a Yxy image.

Definition at line 133 of file HdrImage.cpp.

bool HdrImage::hasY

(

)

const

Returns true if the image color space contains luminance data, otherwise returns false.

Definition at line 240 of file HdrImage.cpp.

bool HdrImage::isNull

(

)

const

Returns true if it is a null image, otherwise returns false.

Definition at line 216 of file HdrImage.cpp.

void HdrImage::load

(

const QString &

fileName )

Loads an image from the file with the given fileName or throw an Exception if the file cannot be loaded.

Definition at line 184 of file HdrImage.cpp.

const Color * HdrImage::operator[]

(

int

i )

const

Returns a constant pointer to the row i of data.

Definition at line 232 of file HdrImage.cpp.

Color * HdrImage::operator[]

(

int

i )

Returns a pointer to the row i of data.

Definition at line 224 of file HdrImage.cpp.

void HdrImage::resize	(	int	w,
		int	h
	)		[private]

Deletes current image data and creates new ones of given width and height.

Definition at line 170 of file HdrImage.cpp.

QSize HdrImage::size

(

)

const

Returns the size of the image.

Definition at line 96 of file HdrImage.cpp.

HdrImage * HdrImage::toRgb

(

const float

toRgbMatrix[3][3] )

const

Returns a RGB copy of the image or throw an Exception if the transformation from the current color space is not implemented.

Definition at line 112 of file HdrImage.cpp.

int HdrImage::YIndex

(

)

const

Returns the luminance index of the image color space.

Definition at line 248 of file HdrImage.cpp.

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Member Data Documentation

int HdrImage::YIndices [static, private]

Initial value:

{
    -1, 
    -1, 
     0  
}

Position of Y element for each color space.

Definition at line 64 of file HdrImage.h.

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

• Src/Api/HdrImage.h
• Src/Api/HdrImage.cpp