gnu.javax.imageio.jpeg
Class HuffmanTable
This Object construct a JPEGHuffmanTable which can be used to encode/decode
a scan from a JPEG codec stream. The table must be initalized with either a
BITS byte amount and a Huffman Table Value for decoding or a Huffman Size
and Huffman Code table for encoding.
int | decode(JPEGImageInputStream JPEGStream)- Generated from FIGURE F.16 - Procedure for DECODE on
ISO DIS 10918-1.
|
static int | extend(int diff, int t)- Generated from FIGURE F.12 - Extending the sign bit of a decoded value in on
ISO DIS 10918-1.
|
void | orderCodes(boolean isDC)- Generated from FIGURE C.3 - Generation of Order Codes and tables EHUFCO
and EHUFSI from the ISO DIS 10918-1.
|
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
decode
public int decode(JPEGImageInputStream JPEGStream)
throws IOException,
JPEGException Generated from FIGURE F.16 - Procedure for DECODE on
ISO DIS 10918-1. Requirements and Guidelines
This function takes in a dynamic amount of bits and using the Huffman
table returns information on how many bits must be read in to a byte in
order to reconstruct said byte.
JPEGStream - the bits of the data stream.
extend
public static int extend(int diff,
int t) Generated from FIGURE F.12 - Extending the sign bit of a decoded value in on
ISO DIS 10918-1. Requirements and Guidelines
orderCodes
public void orderCodes(boolean isDC)
Generated from FIGURE C.3 - Generation of Order Codes and tables EHUFCO
and EHUFSI from the ISO DIS 10918-1. Requirements and Guidelines
HuffmanTable.java --
Copyright (C) 2006 Free Software Foundation, Inc.
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