net.ifok.png.compress

类 PngEncoder

java.lang.Object

net.ifok.png.compress.PngEncoder

public class PngEncoder
extends Object

Class writes BufferedImages as Fast deflated Png

Example 1:

 PngEncoder encoder = new PngEncoder();
 encoder.write(image, outputStream);
 

Example 2 (8 bit quantisation compressed):

 PngEncoder encoder = new PngEncoder();
 encoder.setCompressed(true);
 encoder.write(image, outputStream);
 

构造器概要

构造器

构造器和说明
PngEncoder()

方法概要

限定符和类型	方法和说明
boolean	isCompressed() Returns whether 8 bit quantisation compression is enabled
void	setCompressed(boolean compress) Set true to enable 8 bit quantisation compression in png generation
void	write(BufferedImage image, OutputStream outputStream) Writes BufferedImage as Png to OutputStream This method does not close the provided OutputStream after the write operation has completed; it is the responsibility of the caller to close the stream.

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

PngEncoder

public PngEncoder()

方法详细资料

write

public void write(BufferedImage image,
                  OutputStream outputStream)
           throws IOException

Writes BufferedImage as Png to OutputStream

This method does not close the provided OutputStream after the write operation has completed; it is the responsibility of the caller to close the stream.

参数:

image - BufferedImage The image to write

outputStream - The stream to write the image to

抛出:

IOException - if the image wasn't written

isCompressed

public boolean isCompressed()

Returns whether 8 bit quantisation compression is enabled

返回:

Whether compression is enabled

setCompressed

public void setCompressed(boolean compress)

Set true to enable 8 bit quantisation compression in png generation

参数:

compress - If compression should be enabled