com.sksamuel.scrimage.pixels

Class PixelTools

java.lang.Object

com.sksamuel.scrimage.pixels.PixelTools

public class PixelTools
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
PixelTools()

Method Summary

Modifier and Type	Method and Description
static int	alpha(int pixel) Returns the alpha component of a pixel as a value between 0 and 255.
static boolean	approx(java.awt.Color color, int tolerance, Pixel[] pixels) Returns true if the colors of all pixels in the array are within the given tolerance compared to the referenced color
static int	argb(int a, int r, int g, int b) Returns an encoded argb int from the given components.
static int	blue(int pixel) Returns the blue component of a pixel as a value between 0 and 255.
static boolean	colorMatches(java.awt.Color color, int tolerance, Pixel[] pixels) Returns true if the colors of all pixels in the array are within the given tolerance compared to the referenced color
static int	coordsToOffset(int x, int y, int w)
static int	gray(int pixel) Returns the gray value of a pixel as a value between 0 and 255.
static int	green(int pixel) Returns the green component of a pixel as a value between 0 and 255.
static java.awt.Point	offsetToPoint(int offset, int width) Given a width and an offset returns the coordinate for that offset.
static int	pointToOffset(java.awt.Point point, int w)
static int	red(int pixel) Returns the red component of a pixel as a value between 0 and 255.
static Pixel	replaceTransparencyWithColor(Pixel p, java.awt.Color color) Returns a new Pixel with the transparency in the given pixel replaced by the given color.
static int	rgb(int r, int g, int b) Returns an encoded rgb int, with alpha 255, from the given components.
static int	scale(java.lang.Double factor, int pixel) Scales the brightness of a pixel.
static int	truncate(java.lang.Double value)
static boolean	uniform(java.awt.Color color, Pixel[] pixels) Returns true if all pixels in the array have the same color

Methods inherited from class java.lang.Object

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

Constructor Detail

PixelTools

public PixelTools()

Method Detail

rgb

public static int rgb(int r,
                      int g,
                      int b)

Returns an encoded rgb int, with alpha 255, from the given components.

argb

public static int argb(int a,
                       int r,
                       int g,
                       int b)

Returns an encoded argb int from the given components.

alpha

public static int alpha(int pixel)

Returns the alpha component of a pixel as a value between 0 and 255.

red

public static int red(int pixel)

Returns the red component of a pixel as a value between 0 and 255.

green

public static int green(int pixel)

Returns the green component of a pixel as a value between 0 and 255.

blue

public static int blue(int pixel)

Returns the blue component of a pixel as a value between 0 and 255.

gray

public static int gray(int pixel)

Returns the gray value of a pixel as a value between 0 and 255.

truncate

public static int truncate(java.lang.Double value)

uniform

public static boolean uniform(java.awt.Color color,
                              Pixel[] pixels)

Returns true if all pixels in the array have the same color

scale

public static int scale(java.lang.Double factor,
                        int pixel)

Scales the brightness of a pixel.

approx

public static boolean approx(java.awt.Color color,
                             int tolerance,
                             Pixel[] pixels)

Returns true if the colors of all pixels in the array are within the given tolerance compared to the referenced color

colorMatches

public static boolean colorMatches(java.awt.Color color,
                                   int tolerance,
                                   Pixel[] pixels)

Returns true if the colors of all pixels in the array are within the given tolerance compared to the referenced color

pointToOffset

public static int pointToOffset(java.awt.Point point,
                                int w)

coordsToOffset

public static int coordsToOffset(int x,
                                 int y,
                                 int w)

offsetToPoint

public static java.awt.Point offsetToPoint(int offset,
                                           int width)

Given a width and an offset returns the coordinate for that offset. In other words, starting at 0,0 and moving along each row before starting the next row, it gives the coordinate that is kth from the start.

replaceTransparencyWithColor

public static Pixel replaceTransparencyWithColor(Pixel p,
                                                 java.awt.Color color)

Returns a new Pixel with the transparency in the given pixel replaced by the given color.