Package seamcarving

Class SeamCarver

java.lang.Object

seamcarving.SeamCarver

public class SeamCarver
extends Object

Seam carving, an approach for content-aware image resizing. Given a Picture, an EnergyFunction, and a SeamFinder algorithm, removeHorizontal() or removeVertical() seams from the picture.

See Also:

Picture, EnergyFunction, SeamFinder

Field Summary

Fields

Modifier and Type	Field	Description
private EnergyFunction	f	The EnergyFunction for determining the minimum-cost seam.
private static String	INPUT_PATH	Path to the input image.
private static String	OUTPUT_PATH	Path to the output image.
private Picture	picture	The Picture.
private SeamFinder	seamFinder	The SeamFinder implementation.

Constructor Summary

Constructors

Constructor	Description
SeamCarver(File file, EnergyFunction f, SeamFinder seamFinder)	Constructs a seam carver by reading the Picture from the file, using the given EnergyFunction and SeamFinder implementations.

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)
private Picture	picture()	Returns a copy of the current picture.
List<Integer>	removeHorizontal()	Removes and returns a minimum-cost horizontal seam from the picture.
List<Integer>	removeVertical()	Removes and returns a minimum-cost vertical seam from the picture.
private static void	validate(Picture picture, List<Integer> seam)	Checks that the seam is a valid horizontal seam in the picture.

Methods inherited from class java.lang.Object

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

Field Detail

INPUT_PATH

private static final String INPUT_PATH

Path to the input image.

See Also:

Constant Field Values

OUTPUT_PATH

private static final String OUTPUT_PATH

Path to the output image.

See Also:

Constant Field Values

f

private final EnergyFunction f

The EnergyFunction for determining the minimum-cost seam.

seamFinder

private final SeamFinder seamFinder

The SeamFinder implementation.

picture

private Picture picture

The Picture.

Constructor Detail

SeamCarver

public SeamCarver(File file,
                  EnergyFunction f,
                  SeamFinder seamFinder)
           throws IOException

Constructs a seam carver by reading the Picture from the file, using the given EnergyFunction and SeamFinder implementations.

Parameters:

file - the file path to the image.

f - the EnergyFunction.

seamFinder - the SeamFinder.

Throws:

IOException - if an error occurs during reading.

Method Detail

main

public static void main(String[] args)
                 throws IOException

Throws:

IOException

validate

private static void validate(Picture picture,
                             List<Integer> seam)

Checks that the seam is a valid horizontal seam in the picture.

Parameters:

picture - the input picture.

seam - the seam to remove.

picture

private Picture picture()

Returns a copy of the current picture.

Returns:

a copy of the current picture.

removeHorizontal

public List<Integer> removeHorizontal()

Removes and returns a minimum-cost horizontal seam from the picture.

Returns:

a minimum-cost horizontal seam.

removeVertical

public List<Integer> removeVertical()

Removes and returns a minimum-cost vertical seam from the picture.

Returns:

a minimum-cost vertical seam.