Class Pixel

java.lang.Object

Pixel

All Implemented Interfaces:

java.lang.Comparable<Pixel>

public class Pixel
extends java.lang.Object
implements java.lang.Comparable<Pixel>

A point of color. Pixels are represented as three color components (Red, Green, and Blue) which should all be ints in the range of 0-255. Lower values mean less color; higher means more. For example, new Pixel(255,255,255) represents white, new Pixel(0,0,0) is black, and new Pixel(0,255,0) represents green. This data structure should be immutable. Once pixels have been created they cannot be modified.

Field Summary

Fields

Modifier and Type	Field and Description
static Pixel	BLACK Some constant colors
static Pixel	BLUE
static Pixel	GREEN
static Pixel	RED
static Pixel	WHITE

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(Pixel o)
int	distance(Pixel px) Determines how similar this pixel is to another by summing the (absolute values) of the differences between corresponding components of the two pixels.
boolean	equals(java.lang.Object other) Checks whether this pixel has the same components as the given Object.
boolean	equals(Pixel other) Compares the rgb values of the current Pixel with another to check if they are the same (and thus whether the two Pixels equal each other)
int	getBlue() gets the blue component
int[]	getComponents() get the components as an array of three integers
int	getGreen() gets the green component
int	getRed() gets the red component
int	hashCode()
java.lang.String	toString() Returns a String representation of this pixel.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

BLACK

public static final Pixel BLACK

Some constant colors

BLUE

public static final Pixel BLUE

RED

public static final Pixel RED

GREEN

public static final Pixel GREEN

WHITE

public static final Pixel WHITE

Method Detail

getRed

public int getRed()

gets the red component

getGreen

public int getGreen()

gets the green component

getBlue

public int getBlue()

gets the blue component

getComponents

public int[] getComponents()

get the components as an array of three integers

distance

public int distance(Pixel px)

Determines how similar this pixel is to another by summing the (absolute values) of the differences between corresponding components of the two pixels. Hint: use Math.abs

Parameters:

px - The other pixel with which to compare

Returns:

The sum of the differences in each of the color components

toString

public java.lang.String toString()

Returns a String representation of this pixel. The string should comma separate the rgb values and surround them with parenthesis Example: RED.toString() is "(255, 0, 0)" Note: This function will allow you to print Pixels in a readable format. This can be very helpful while debugging, and we highly encourage you to use print statements to debug this assignment.

Overrides:

toString in class java.lang.Object

Returns:

A string representation of this pixel

equals

public boolean equals(Pixel other)

Compares the rgb values of the current Pixel with another to check if they are the same (and thus whether the two Pixels equal each other)

Parameters:

other - The Pixel being compared to the current Pixel

equals

public boolean equals(java.lang.Object other)

Checks whether this pixel has the same components as the given Object. If the object is not a Pixel, then this returns false.

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(Pixel o)

Specified by:

compareTo in interface java.lang.Comparable<Pixel>