org.openimaj.image.colour

Class RGBColour

java.lang.Object

org.openimaj.image.colour.RGBColour

public class RGBColour
extends Object

Convenience constants and methods for RGB colours for use in MBFImages

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
static Float[]	BLACK Black colour as RGB
static Float[]	BLUE Blue colour as RGB
static Float[]	CYAN Cyan colour as RGB
static Float[]	DARK_GRAY Dark gray colour as RGB
static Float[]	GRAY Gray colour as RGB
static Float[]	GREEN Green colour as RGB
static Float[]	LIGHT_GRAY Light gray colour as RGB
static Float[]	MAGENTA Magenta colour as RGB
static Float[]	ORANGE Orange colour as RGB
static Float[]	PINK Pink colour as RGB
static Float[]	RED Red colour as RGB
static Float[]	WHITE White colour as RGB
static Float[]	YELLOW Yellow colour as RGB

Method Summary

Modifier and Type	Method and Description
static Float[][]	coloursFromMap(ColourMap cm, int n) Generate a range of colours from a ColourMap.
static Float[]	fromColor(Color c) Make an OpenImaj colour from a java.awt.Color.
static Float[]	fromString(String s) Get a colour from a string representation.
static Float[]	randomColour() Generate a random colour
static List<Float[]>	randomColours(int n) Generate a list of random colours.
static Float[]	RGB(float r, float g, float b) Create a colour from an RGB triplet with float values in the range 0..1.
static Float[]	RGB(int r, int g, int b) Create a colour from an RGB triplet with integer values in the range 0..255.

Methods inherited from class java.lang.Object

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

Field Detail

WHITE

public static final Float[] WHITE

White colour as RGB

LIGHT_GRAY

public static final Float[] LIGHT_GRAY

Light gray colour as RGB

GRAY

public static final Float[] GRAY

Gray colour as RGB

DARK_GRAY

public static final Float[] DARK_GRAY

Dark gray colour as RGB

BLACK

public static final Float[] BLACK

Black colour as RGB

RED

public static final Float[] RED

Red colour as RGB

PINK

public static final Float[] PINK

Pink colour as RGB

ORANGE

public static final Float[] ORANGE

Orange colour as RGB

YELLOW

public static final Float[] YELLOW

Yellow colour as RGB

GREEN

public static final Float[] GREEN

Green colour as RGB

MAGENTA

public static final Float[] MAGENTA

Magenta colour as RGB

CYAN

public static final Float[] CYAN

Cyan colour as RGB

BLUE

public static final Float[] BLUE

Blue colour as RGB

Method Detail

fromColor

public static Float[] fromColor(Color c)

Make an OpenImaj colour from a java.awt.Color.

Parameters:

c - the color to convert

Returns:

a colour for using as RGB MBFImages

fromString

public static Float[] fromString(String s)

Get a colour from a string representation. The string may contain any of the predefined colour names described in this class (in upper, lower or mixed case), or it can be a comma separated triplet of floating point values.

Parameters:

s - the string

Returns:

the colour described by the string, or BLACK if a problem occurs.

randomColour

public static Float[] randomColour()

Generate a random colour

Returns:

a random colour

randomColours

public static List<Float[]> randomColours(int n)

Generate a list of random colours.

Parameters:

n - number of colours

Returns:

list of randomly generated colours

coloursFromMap

public static Float[][] coloursFromMap(ColourMap cm,
                                       int n)

Generate a range of colours from a ColourMap.

Parameters:

cm - the map

n - number of colours

Returns:

the colours

RGB

public static Float[] RGB(int r,
                          int g,
                          int b)

Create a colour from an RGB triplet with integer values in the range 0..255.

Parameters:

r - red value 0..255

g - green value 0..255

b - blue value 0..255

Returns:

the colour value

RGB

public static Float[] RGB(float r,
                          float g,
                          float b)

Create a colour from an RGB triplet with float values in the range 0..1.

Parameters:

r - red value 0..1

g - green value 0..1

b - blue value 0..1

Returns:

the colour value