Picture.cpp File Reference

#include "Picture.h"

Include dependency graph for Picture.cpp:

Functions
DoubleVec3D	toneMapping (const DoubleVec3D &radiance, double middleGrey)
	Converts a radiance to a colour value. More...
DoubleVec3D	getColourMovingAverage (const std::vector< std::vector< DoubleVec3D >> &pixelValues, unsigned int pixelX, unsigned int pixelY, unsigned int size)
	Computes the value of a pixel when having applied a moving average. More...
void	to_json (json &j, const Picture &picture)
	Conversion to json. More...
Picture	importPictureFromJson (const json &j)
	Imports a picture out of json. More...

Function Documentation

getColourMovingAverage()

DoubleVec3D getColourMovingAverage	(	const std::vector< std::vector< DoubleVec3D >> &	pixelValues,
		unsigned int	pixelX,
		unsigned int	pixelY,
		unsigned int	size
	)

Computes the value of a pixel when having applied a moving average.

Parameters

pixelValues	The values of all pixels (can be radiance or colour value, depending whether you first use the toneMapping function or not).
pixelX	The x coordinate of the pixel.
pixelY	the y coordinate of the pixel.
size	The size of the moving average.

Returns

The colour at that pixel after having applied the moving average.

See also

Picture::export2File()

importPictureFromJson()

Picture importPictureFromJson

(

const json &

j

)

Imports a picture out of json.

Parameters

j	The json input.

Returns

The imported picture.

to_json()

void to_json	(	json &	j,
		const Picture &	picture
	)

Conversion to json.

Parameters

j	Json output.
picture	The picture that will be converted to json.

Warning

This is a very inefficient way to store a picture. Only use it to make temporary backups.

toneMapping()

DoubleVec3D toneMapping	(	const DoubleVec3D &	radiance,
		double	middleGrey
	)

Converts a radiance to a colour value.

This is a very naive tone mapping. See my TM's report for more explanations.

Parameters

radiance	The radiance we want to convert.
middleGrey	The radiance value that corresponds to the middle-grey.

Returns

The colour that has been computed. Each part of the colour (red, green or blue) range from 0 to MAX_COLOUR_VALUE.

See also

Picture::MAX_COLOUR_VALUE, Picture::export2File()