org.beyka.tiffbitmapfactory

Enum TiffBitmapFactory.ImageConfig

java.lang.Object

java.lang.Enum<TiffBitmapFactory.ImageConfig>

org.beyka.tiffbitmapfactory.TiffBitmapFactory.ImageConfig

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<TiffBitmapFactory.ImageConfig>

Enclosing class:

TiffBitmapFactory

public static enum TiffBitmapFactory.ImageConfig
extends java.lang.Enum<TiffBitmapFactory.ImageConfig>

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALPHA_8 Each pixel is stored as a single translucency (alpha) channel.
ARGB_8888 Each pixel is stored on 4 bytes.
RGB_565 Each pixel is stored on 2 bytes and only the RGB channels are encoded: red is stored with 5 bits of precision (32 possible values), green is stored with 6 bits of precision (64 possible values) and blue is stored with 5 bits of precision.

Method Summary

Modifier and Type	Method and Description
static TiffBitmapFactory.ImageConfig	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static TiffBitmapFactory.ImageConfig[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ARGB_8888

public static final TiffBitmapFactory.ImageConfig ARGB_8888

Each pixel is stored on 4 bytes. Each channel (RGB and alpha for translucency) is stored with 8 bits of precision (256 possible values.) This configuration is very flexible and offers the best quality. It should be used whenever possible.

RGB_565

public static final TiffBitmapFactory.ImageConfig RGB_565

Each pixel is stored on 2 bytes and only the RGB channels are encoded: red is stored with 5 bits of precision (32 possible values), green is stored with 6 bits of precision (64 possible values) and blue is stored with 5 bits of precision. This configuration can produce slight visual artifacts depending on the configuration of the source. For instance, without dithering, the result might show a greenish tint. To get better results dithering should be applied. This configuration may be useful when using opaque bitmaps that do not require high color fidelity.

ALPHA_8

public static final TiffBitmapFactory.ImageConfig ALPHA_8

Each pixel is stored as a single translucency (alpha) channel. This is very useful to efficiently store masks for instance. No color information is stored. With this configuration, each pixel requires 1 byte of memory.

Method Detail

values

public static TiffBitmapFactory.ImageConfig[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (TiffBitmapFactory.ImageConfig c : TiffBitmapFactory.ImageConfig.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static TiffBitmapFactory.ImageConfig valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null