Package seamfinding

Class Picture

java.lang.Object

seamfinding.Picture

public class Picture
extends Object

A digital picture represented as red-green-blue color int pixels.

Field Summary

Fields

Modifier and Type	Field	Description
private BufferedImage	image

Constructor Summary

Constructors

Constructor	Description
Picture()	Constructs a null picture for subclassing purposes.
Picture(int width, int height)	Constructs an empty picture with the given width and height dimensions.
Picture(BufferedImage image)	Constructs a picture from the given image.
Picture(File file)	Constructs a picture from the given file.

Method Summary

Modifier and Type	Method	Description
int	get(int x, int y)	Returns the 24-bit red-green-blue (RGB) color for the pixel (x, y).
int	height()	Returns the height of the picture.
void	save(File file)	Writes the picture to the given file path.
void	set(int x, int y, int rgb)	Reassigns the 24-bit red-green-blue (RGB) color for the pixel (x, y).
Picture	transposed()	Returns a transposed view of this image where x and y accesses are reversed.
int	width()	Returns the width of the picture.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

image

private final BufferedImage image

Constructor Detail

Picture

Picture()

Constructs a null picture for subclassing purposes.

Picture

public Picture(BufferedImage image)

Constructs a picture from the given image.

Parameters:

image - the input image.

Picture

public Picture(int width,
               int height)

Constructs an empty picture with the given width and height dimensions.

Parameters:

width - the horizontal dimension for the picture.

height - the vertical dimension for the picture.

Picture

public Picture(File file)
        throws IOException

Constructs a picture from the given file.

Parameters:

file - the input file.

Throws:

IOException - if an error occurs during reading.

Method Detail

get

public int get(int x,
               int y)

Returns the 24-bit red-green-blue (RGB) color for the pixel (x, y).

Parameters:

x - the x-index into the picture.

y - the y-index into the picture.

Returns:

the 24-bit red-green-blue (RGB) color for the pixel (x, y).

set

public void set(int x,
                int y,
                int rgb)

Reassigns the 24-bit red-green-blue (RGB) color for the pixel (x, y).

Parameters:

x - the x-index into the picture.

y - the y-index into the picture.

rgb - the 24-bit red-green-blue (RGB) color for the pixel (x, y).

width

public int width()

Returns the width of the picture.

Returns:

the width of the picture.

height

public int height()

Returns the height of the picture.

Returns:

the height of the picture.

save

public void save(File file)
          throws IOException

Writes the picture to the given file path.

Parameters:

file - the file path.

Throws:

IOException - if an error occurs during writing.

transposed

public Picture transposed()

Returns a transposed view of this image where x and y accesses are reversed.

Returns:

a transposed view of this image where x and y accesses are reversed.