net.ifok.image.image4j.util

类 ConvertUtil

java.lang.Object

net.ifok.image.image4j.util.ConvertUtil

public class ConvertUtil
extends Object

Provides useful methods for converting images from one colour depth to another.

作者:

Ian McDonagh

构造器概要

构造器

构造器和说明
ConvertUtil()

方法概要

限定符和类型	方法和说明
static BufferedImage	convert1(BufferedImage src) Converts the source to 1-bit colour depth (monochrome).
static BufferedImage	convert24(BufferedImage src) Converts the source image to 24-bit colour (RGB).
static BufferedImage	convert32(BufferedImage src) Converts the source image to 32-bit colour with transparency (ARGB).
static BufferedImage	convert4(BufferedImage src) Converts the source image to 4-bit colour using the default 16-colour palette: blackdark reddark green dark yellowdark bluedark magenta dark cyandark greylight grey redgreenyellowblue magentacyanwhite No transparency.
static BufferedImage	convert4(BufferedImage src, int[] cmap) Converts the source image to 4-bit colour using the given colour map.
static BufferedImage	convert8(BufferedImage src) Converts the source image to 8-bit colour using the default 256-colour palette.

从类继承的方法 java.lang.Object

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

构造器详细资料

ConvertUtil

public ConvertUtil()

方法详细资料

convert1

public static BufferedImage convert1(BufferedImage src)

Converts the source to 1-bit colour depth (monochrome). No transparency.

参数:

src - the source image to convert

返回:

a copy of the source image with a 1-bit colour depth.

convert4

public static BufferedImage convert4(BufferedImage src)

Converts the source image to 4-bit colour using the default 16-colour palette:

• black
• dark red
• dark green
• dark yellow
• dark blue
• dark magenta
• dark cyan
• dark grey
• light grey
• red
• green
• yellow
• blue
• magenta
• cyan
• white

No transparency.

参数:

src - the source image to convert

返回:

a copy of the source image with a 4-bit colour depth, with the default colour pallette

convert4

public static BufferedImage convert4(BufferedImage src,
                                     int[] cmap)

Converts the source image to 4-bit colour using the given colour map. No transparency.

参数:

src - the source image to convert

cmap - the colour map, which should contain no more than 16 entries The entries are in the form RRGGBB (hex).

返回:

a copy of the source image with a 4-bit colour depth, with the custom colour pallette

convert8

public static BufferedImage convert8(BufferedImage src)

Converts the source image to 8-bit colour using the default 256-colour palette. No transparency.

参数:

src - the source image to convert

返回:

a copy of the source image with an 8-bit colour depth

convert24

public static BufferedImage convert24(BufferedImage src)

Converts the source image to 24-bit colour (RGB). No transparency.

参数:

src - the source image to convert

返回:

a copy of the source image with a 24-bit colour depth

convert32

public static BufferedImage convert32(BufferedImage src)

Converts the source image to 32-bit colour with transparency (ARGB).

参数:

src - the source image to convert

返回:

a copy of the source image with a 32-bit colour depth.