SourceImage extends the Image class and provides some additional data and functions suitable for the source image for the photomosaic. More...

#include <sourceimage.h>

Public Member Functions
	SourceImage (const PNG &image, int resolution)
	Default constructor. More...

LUVAPixel	getRegionColor (int row, int col) const
	Get the average color of a particular region. More...

int	getRows () const
	Retreive the number of row sub-regions the source image is broken into. More...

int	getColumns () const
	Retreive the number of column sub-regions the source image is broken into. More...

Static Private Member Functions
static uint64_t	divide (uint64_t a, uint64_t b)

Private Attributes
PNG	backingImage

int	resolution

Detailed Description

SourceImage extends the Image class and provides some additional data and functions suitable for the source image for the photomosaic.

The default constructor will take a number of rows and columns to divide the image into. The image will then be processes to find the average color of each region.

Constructor & Destructor Documentation

◆ SourceImage()

SourceImage::SourceImage	(	const PNG &	image,
		int	resolution
	)

Default constructor.

Parameters

image	The image data from GraphicsMagick
resolution	The resolution of the sub-regions. This will be the number of tiles in the larger of the two dimensions of the SourceImage. If the given resolution is greater than the largest dimension of the image, it will be automatically set to the pixel dimensions

Member Function Documentation

◆ divide()

uint64_t SourceImage::divide	(	uint64_t	a,
		uint64_t	b
	)

staticprivate

◆ getColumns()

int SourceImage::getColumns ( ) const

Retreive the number of column sub-regions the source image is broken into.

Returns: The number of columns, or -1 if in an invalid state

◆ getRegionColor()

LUVAPixel SourceImage::getRegionColor	(	int	row,
		int	col
	)		const

Get the average color of a particular region.

Note, the row and column should be specified with a 0-based index. i.e., The top-left corner is (row, column) (0,0).

Parameters

row	The row of the particular region in the image
col	The column of the particular region in the image

Returns: The average color of the image

◆ getRows()

int SourceImage::getRows ( ) const

Retreive the number of row sub-regions the source image is broken into.

Returns: The number of rows, or -1 if in an invalid state

Member Data Documentation

◆ backingImage

PNG SourceImage::backingImage

private

◆ resolution

int SourceImage::resolution