JavaTM 2 Platform
Standard Ed. 5.0

javax.imageio.plugins.jpeg
Ŭ·¡½º JPEGHuffmanTable

java.lang.Object 
  »óÀ§¸¦ È®Àå javax.imageio.plugins.jpeg.JPEGHuffmanTable

public class JPEGHuffmanTable
extends Object

1°³ÀÇ JPEG ÇÏÇÁ¸Ç Å×À̺íÀ» ĸ½¶È­Çϴ Ŭ·¡½ºÀÔ´Ï´Ù. Çʵå´Â JPEG »ç¾çÀÇ Annex K¸¦ ±âº»À¸·Î ÇÑ ¡¸Ç¥ÁØ¡¹Å×À̺í¿ëÀ¸·Î Á¦°øµË´Ï´Ù. À̰͵éÀº µðÆúÆ®·Î¼­ »ç¿ëµÇ´Â Å×À̺íÀÔ´Ï´Ù. ÀÌ Å¬·¡½º´Â ´ÙÀ½ÀÇ 2°³ÀÇ Á¡À¸·Î½á, Áö¿ø µÇ¾î ÀÖÁö ¾ÊÀº ³°Àº com.sun.image.codec.jpeg.JPEGHuffmanTable¿Í ´Ù¸¨´Ï´Ù.

  1. ÀÌ Å¬·¡½ºÀÇ ±æÀÌ ¹è¿­Àº ¹«½ÃµÇ´Â 0 ¹ø°ÀÇ ¿£Æ®¸®¸¦ Æ÷ÇÔÇÏÁö ¾Ê½À´Ï´Ù. JPEG ½ºÆ®¸²ÀÇ ±æÀÌ ¹è¿­Àº Ãß°¡ ¿£Æ®¸®¸¦ Æ÷ÇÔÇÏÁö ¾Ê°í, ÀÌ Å¬·¡½º´Â JPEG ½ºÆ®¸²ÀÇ ³»¿ëÀ» ³ªÅ¸³»´Âµ¥ »ç¿ëµË´Ï´Ù.
  2. ³°Àº Ŭ·¡½º´Â À߸øÇØ ÇÏÇÁ¸Ç ¡¸±âÈ£¡¹¶ó°í ºÒ·Á °ªÀÇ ¹è¿­ÀÇ encode¸¦ »óÁ¤ÇÏ°í ÀÖ½À´Ï´Ù. ÀÌ Å¬·¡½º¿¡´Â getSymbols ¸Þ¼­µå ´ë½Å¿¡ getValues ¸Þ¼­µå°¡ ÀÖ½À´Ï´Ù.

ºôÆ®ÀÎ JPEG Ç÷¯±× ÀÎÀÇ Á¶ÀÛÀÇ »ó¼¼ÇÑ °Í¿¡ ´ëÇÏ¿©´Â ¡¸JPEG ¸ÞŸµ¥ÀÌŸ Çü½ÄÀÇ »ç¾ç°ú »ç¿ë¹ý¿¡ °üÇÑ Áֱ⡹¸¦ ÂüÁ¶ÇϽʽÿÀ.


ÇÊµå °³¿ä
static JPEGHuffmanTable StdACChrominance
          Ç¥ÁØÀÇ AC Å©·Î¹Ì³­½ºÇÏÈĸ¸Å×À̺ÒÀÔ´Ï´Ù.
static JPEGHuffmanTable StdACLuminance
          Ç¥ÁØÀÇ AC ÈÖµµ ÇÏÇÁ¸Ç Å×À̺íÀÔ´Ï´Ù.
static JPEGHuffmanTable StdDCChrominance
          Ç¥ÁØÀÇ DC Å©·Î¹Ì³­½ºÇÏÈĸ¸Å×À̺ÒÀÔ´Ï´Ù.
static JPEGHuffmanTable StdDCLuminance
          Ç¥ÁØÀÇ DC ÈÖµµ ÇÏÇÁ¸Ç Å×À̺íÀÔ´Ï´Ù.
 
»ý¼ºÀÚ °³¿ä
JPEGHuffmanTable (short[] lengths, short[] values)
          ÇÏÇÁ¸Ç Å×À̺íÀ» ÀÛ¼ºÇØ ÃʱâÈ­ÇÕ´Ï´Ù.
 
¸Þ¼­µå °³¿ä
 short[] getLengths ()
          ÇÏÇÁ¸Ç Å×ÀÌºí³»ÀÇ °¢ ±æÀÌÀÇ °ªÀÇ ¼ö°¡ Æ÷ÇԵǰí ÀÖ´Â short ¹è¿­À» ¸®ÅÏÇÕ´Ï´Ù.
 short[] getValues ()
          ´ëÀÀÇÏ´Â ÄÚµåÀÇ Áõ°¡ÇÏ´Â ±æÀÌ¿¡ ÀÇÇØ Á¤¸®µÈ °ªÀÌ Æ÷ÇԵǰí ÀÖ´Â short ¹è¿­À» ¸®ÅÏÇÕ´Ï´Ù.
 String toString ()
          °´Ã¼ÀÇ Ä³¸¯ÅÍ ¶óÀΠǥÇöÀ» ¸®ÅÏÇÕ´Ï´Ù.
 
Ŭ·¡½º java.lang. Object ·ÎºÎÅÍ »ó¼ÓµÈ ¸Þ¼­µå
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

ÇʵåÀÇ »ó¼¼

StdDCLuminance

public static final JPEGHuffmanTable  StdDCLuminance
Ç¥ÁØÀÇ DC ÈÖµµ ÇÏÇÁ¸Ç Å×À̺íÀÔ´Ï´Ù.


StdDCChrominance

public static final JPEGHuffmanTable  StdDCChrominance
Ç¥ÁØÀÇ DC Å©·Î¹Ì³­½ºÇÏÈĸ¸Å×À̺ÒÀÔ´Ï´Ù.


StdACLuminance

public static final JPEGHuffmanTable  StdACLuminance
Ç¥ÁØÀÇ AC ÈÖµµ ÇÏÇÁ¸Ç Å×À̺íÀÔ´Ï´Ù.


StdACChrominance

public static final JPEGHuffmanTable  StdACChrominance
Ç¥ÁØÀÇ AC Å©·Î¹Ì³­½ºÇÏÈĸ¸Å×À̺ÒÀÔ´Ï´Ù.

»ý¼ºÀÚ »ó¼¼

JPEGHuffmanTable

public JPEGHuffmanTable(short[] lengths,
                        short[] values)
ÇÏÇÁ¸Ç Å×À̺íÀ» ÀÛ¼ºÇØ ÃʱâÈ­ÇÕ´Ï´Ù. ÀÔ·Â ¹è¿­Àº º¹»çµË´Ï´Ù. ÀÌ ¹è¿­Àº °¡´ÉÇÑ ÇÏÇÁ¸Ç Å×À̺íÀ» ±â¼úÇÒ ÇÊ¿ä°¡ ÀÖ½À´Ï´Ù. ¿¹¸¦ µé¾î 1 ºñÆ®·Î 3°³ÀÇ Äڵ带 ³ªÅ¸³¾ ¼ö ¾ø½À´Ï´Ù.

ÆĶó¹ÌÅÍ:
lengths - short ¹è¿­. ¿©±â¼­, lengths[k]´Â ±æÀÌ k + 1 ºñÆ®ÀÇ ´ëÀÀÇÏ´Â Äڵ带 °¡Áö´Â °ªÀÇ ¼ö¿¡ µ¿ÀÏÇÑ
values - Áõ°¡ÇÏ´Â ÄÚµåÀÇ ±æÀÌÀÇ ¼ø¼­¿¡ °ªÀÌ Æ÷ÇԵǰí ÀÖ´Â short ¹è¿­
¿¹¿Ü:
IllegalArgumentException - lengths ¶Ç´Â values°¡ nullÀÎ, lengths ±æÀÌ°¡ 16 º¸´Ù Å«, values ±æÀÌ°¡ 256 º¸´Ù Å«, lengths ¶Ç´Â values ³»ÀÇ °ªÀÌ Á¦·Îº¸´Ù ÀÛÀº ȤÀº ¹è¿­ÀÌ À¯È¿ÇÑ ÇÏÇÁ¸Ç Å×À̺íÀ» ±â¼úÇÏÁö ¾Ê´Â °æ¿ì
¸Þ¼­µåÀÇ »ó¼¼

getLengths

public short[] getLengths()
ÇÏÇÁ¸Ç Å×ÀÌºí³»ÀÇ °¢ ±æÀÌÀÇ °ªÀÇ ¼ö°¡ Æ÷ÇԵǰí ÀÖ´Â short ¹è¿­À» ¸®ÅÏÇÕ´Ï´Ù. ¸®ÅÏµÈ ¹è¿­Àº Ä«ÇÇÀÔ´Ï´Ù.

¹Ýȯ°ª:
short ¹è¿­. ¿©±â¼­, array[k-1]´Â ±æÀÌ k Å×ÀÌºí³»ÀÇ °ªÀÇ ¼ö¿¡ µ¿ÀÏÇÑ
°ü·Ã Ç׸ñ:
getValues()

getValues

public short[] getValues()
´ëÀÀÇÏ´Â ÄÚµåÀÇ Áõ°¡ÇÏ´Â ±æÀÌ¿¡ ÀÇÇØ Á¤¸®µÈ °ªÀÌ Æ÷ÇԵǰí ÀÖ´Â short ¹è¿­À» ¸®ÅÏÇÕ´Ï´Ù. ¹è¿­ÀÇ Çؼ®Àº, getLengths·Î ºÎÅÍ ¸®ÅÏµÈ °ª¿¡ µû¶ó¼­ ´Ù¸¨´Ï´Ù. ¸®ÅÏµÈ ¹è¿­Àº Ä«ÇÇÀÔ´Ï´Ù.

¹Ýȯ°ª:
Ä¡ÀÇ short ¹è¿­
°ü·Ã Ç׸ñ:
getLengths()

toString

public String  toString()
Ŭ·¡½º Object ±â¼ú:
°´Ã¼ÀÇ Ä³¸¯ÅÍ ¶óÀΠǥÇöÀ» ¸®ÅÏÇÕ´Ï´Ù. º¸Åë, toString ¸Þ¼­µå´Â ÀÌ °´Ã¼¸¦ ¡¸ÅؽºÆ®·Î Ç¥ÇöÇÑ´Ù¡¹Ä³¸¯ÅÍ ¶óÀÎÀ» ¸®ÅÏÇÕ´Ï´Ù. ÀÌ °á°ú´Â Àΰ£ÀÌ ÀÐÀ» ¼ö ÀÖ´Â °£°áÇÏ°í À¯ÀÍÇÑ Á¤º¸¿©¾ß ÇÕ´Ï´Ù. ¸ðµç ¼­ºê Ŭ·¡½º¿¡¼­ ÀÌ ¸Þ¼­µå¸¦ ¿À¹ö¶óÀ̵å(override) ÇÏ´Â °ÍÀ» ÃßõÇÕ´Ï´Ù.

Object Ŭ·¡½ºÀÇ toString ¸Þ¼­µå´Â °´Ã¼ÀÇ ÆÄ»ý¿øÀÇ Å¬·¡½º¸í, @ ºÎÈ£ (@) ¹× °´Ã¼ÀÇ Çؽà ÄÚµåÀÇ ºÎÈ£ ¾øÀ½ 16 ÁøÇ¥ÇöÀ¸·ÎºÎÅÍ ±¸¼ºµÇ´Â ij¸¯ÅÍ ¶óÀÎÀ» ¸®ÅÏÇÕ´Ï´Ù. Áï, ÀÌ ¸Þ¼­µå´Â ´ÙÀ½ÀÇ °ª°ú µ¿ÀÏÇÑ Ä³¸¯ÅÍ ¶óÀÎÀ» ¸®ÅÏÇÕ´Ï´Ù.


 getClass(). getName() + '@' + Integer.toHexString(hashCode())
 

¿À¹ö¶óÀ̵å(override):
Ŭ·¡½º Object ³»ÀÇ toString
¹Ýȯ°ª:
ÀÌ °´Ã¼ÀÇ Ä³¸¯ÅÍ ¶óÀΠǥÇö

JavaTM 2 Platform
Standard Ed. 5.0

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