jpeg压缩编码笔记 - edwin wang's blog - 博客园.mht

实现JPEG编码功能

JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2006-11-05 09:22 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl10_NameLink =
target=3D_blank>zhenhlihua</A>=20
</DIV>
<DIV =
class=3DpostText>=E9=A6=96=E5=85=88,=E9=9D=9E=E5=B8=B8=E6=84=9F=E8=B0=A2=E4=
=BD=A0=E7=9A=84=E5=9B=9E=E5=A4=8D! =
<BR>=E6=88=91=E7=9C=8B=E4=BA=86=E5=87=A0=E6=9C=AC=E5=9B=BE=E5=83=8F=E5=A4=
=84=E7=90=86=E7=9A=84=E4=B9=A6,=E8=AF=B4=E6=B3=95=E9=83=BD=E6=98=AF=E7=9B=
=B8=E4=BC=BC=E7=9A=84,=E6=9C=89=E5=87=A0=E4=B8=AA=E9=97=AE=E9=A2=98=E6=88=
=91=E7=99=BE=E6=80=9D=E4=B8=8D=E5=BE=97=E5=85=B6=E8=A7=A3.=20
<BR>"=E6=8A=8A=E6=95=B4=E4=B8=AA=E5=88=86=E9=87=8F=E5=9B=BE=E5=83=8F=E5=88=
=86=E6=88=908=C3=978=E7=9A=84=E5=9B=BE=E5=83=8F=E5=9D=97=EF=BC=8C=E5=A6=82=
=E5=9B=BE=E6=89=80=E7=A4=BA=EF=BC=8C=E5=B9=B6=E4=BD=9C=E4=B8=BA=E4=B8=A4=E7=
=BB=B4=E7=A6=BB=E6=95=A3=E4=BD=99=E5=BC=A6=E5=8F=98=E6=8D=A2DCT=E7=9A=84=E8=
=BE=93=E5=85=A5",=E9=82=A3=E6=AF=8F=E4=B8=AA=E5=9B=BE=E5=83=8F=E5=9D=97=E9=
=9A=BE=E9=81=93=E5=8F=AF=E4=BB=A5=E5=8F=AA=E7=94=A8=E4=B8=80=E4=B8=AA=E6=95=
=B0=E6=9D=A5=E8=A1=A8=E7=A4=BA???=E6=AF=8F=E4=B8=80=E4=B8=AA=E5=9B=BE=E5=83=
=8F=E5=9D=97=E5=8F=88=E6=98=AF=E6=80=8E=E4=B9=88=E5=A4=84=E7=90=86=E7=9A=84=
?=20
<BR>&nbsp;&nbsp;<A onclick=3D'return SetReplyAuhor("zhenhlihua")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dzhenhlihua"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl10_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl10$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl10_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#571406">#</A>&nbsp;<A=20
name=3D571406></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2006-11-24 20:45 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl11_NameLink =
target=3D_blank>zhenhlihua</A>=20
</DIV>
<DIV=20
class=3DpostText>=E6=90=9E=E6=98=8E=E7=99=BD=E4=BA=86!"=E6=8A=8A=E6=95=B4=
=E4=B8=AA=E5=88=86=E9=87=8F=E5=9B=BE=E5=83=8F=E5=88=86=E6=88=908=C3=978=E7=
=9A=84=E5=9B=BE=E5=83=8F=E5=9D=97"=E6=98=AF=E9=94=99=E8=AF=AF=E7=9A=84,=E5=
=BA=94=E8=AF=A5=E6=98=AF:"=E6=8A=8A=E6=95=B4=E4=B8=AA=E5=88=86=E9=87=8F=E5=
=9B=BE=E5=83=8F=E5=88=86=E6=88=90=E8=8B=A5=E5=B9=B2=E4=B8=AA8=C3=978=E7=9A=
=84=E5=9B=BE=E5=83=8F=E5=9D=97".&nbsp;&nbsp;<A=20
onclick=3D'return SetReplyAuhor("zhenhlihua")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dzhenhlihua"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl11_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl11$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl11_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#571456">#</A>&nbsp;<A=20
name=3D571456></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2006-11-24 21:18 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl12_NameLink=20
href=3D"http://laughterwym.cnblogs.com/" target=3D_blank>laughterwym</A> =
</DIV>
<DIV class=3DpostText>@zhenhlihua =
<BR>=E5=AF=B9=E5=B0=B1=E6=98=AF=E8=BF=99=E6=A0=B7=E7=90=86=E8=A7=A3=E7=9A=
=84=EF=BC=8C=E8=B0=A2=E8=B0=A2=EF=BC=8C=E5=B7=B2=E6=9B=B4=E6=AD=A3&nbsp;&=
nbsp;<A=20
onclick=3D'return SetReplyAuhor("laughterwym")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dlaughterwym"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl12_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl12$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl12_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#702496">#</A>&nbsp;<A=20
name=3D702496></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2007-04-06 11:32 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl13_NameLink =
target=3D_blank>=E7=86=8F=E8=A1=A3=E8=8D=89</A> </DIV>
<DIV =
class=3DpostText>=E6=88=91=E7=8E=B0=E5=9C=A8=E5=9C=A8=E5=81=9AJPEG=E5=8E=8B=
=E7=BC=A9=E7=9A=84=E6=AF=95=E4=B8=9A=E8=AE=BE=E8=AE=A1=E5=95=8A =
<BR>=E5=AF=B9=E9=87=8F=E5=8C=96=E8=BF=99=E6=96=B9=E9=9D=A2=E7=9A=84C=E4=BB=
=A3=E7=A0=81=E6=9C=89=E6=B2=A1=E6=9C=89=E5=95=8A =
<BR>=E6=80=A5=E9=9C=80=E5=95=8A=EF=BC=81 <BR>=E8=B0=A2=E8=B0=A2=EF=BC=81 =

<BR>&nbsp;&nbsp;<A onclick=3D'return =
SetReplyAuhor("=E7=86=8F=E8=A1=A3=E8=8D=89")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA=20
href=3D"http://www.cnblogs.com/comment?author=3D%e7%86%8f%e8%a1%a3%e8%8d%=
89"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl13_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl13$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl13_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#703248">#</A>&nbsp;<A=20
name=3D703248></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2007-04-06 21:58 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl14_NameLink=20
href=3D"http://laughterwym.cnblogs.com/" target=3D_blank>laughterwym</A> =
</DIV>
<DIV=20
class=3DpostText>@=E7=86=8F=E8=A1=A3=E8=8D=89<BR>=E8=BF=99=E4=B8=AAgoogle=
=E4=B8=80=E4=B8=8B=E5=BA=94=E8=AF=A5=E5=BE=88=E5=A4=9A=E7=9A=84=EF=BC=8C=E6=
=88=91=E8=BF=99=E9=87=8C=E5=80=92=E6=9C=89matlab=E7=9A=84jpeg=E7=9A=84=EF=
=BC=8C=E8=A6=81=E7=9A=84=E8=AF=9D=E5=BE=88=E4=B9=90=E6=84=8F=E6=8F=90=E4=BE=
=9B&nbsp;&nbsp;<A=20
onclick=3D'return SetReplyAuhor("laughterwym")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dlaughterwym"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl14_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl14$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl14_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink:  =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0[=E6=9C=AA=E7=99=
=BB=E5=BD=95]"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#706752">#</A>&nbsp;<A=20
name=3D706752></A> =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0[=E6=9C=AA=E7=99=
=BB=E5=BD=95] <SPAN>2007-04-10 11:01 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl15_NameLink =
target=3D_blank>=E7=AC=A8=E7=8C=AB</A> </DIV>
<DIV =
class=3DpostText>=E8=83=BD=E5=90=A6=E7=BB=99=E6=88=91=E5=8F=91=E4=B8=80=E4=
=BB=BD=EF=BC=9F=E8=B0=A2=E8=B0=A2 [e-mail]&nbsp;&nbsp;<A=20
onclick=3D'return SetReplyAuhor("=E7=AC=A8=E7=8C=AB")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA=20
href=3D"http://www.cnblogs.com/comment?author=3D%e7%ac%a8%e7%8c%ab"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl15_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl15$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl15_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0[=E6=9C=AA=E7=99=
=BB=E5=BD=95]"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#711975">#</A>&nbsp;<A=20
name=3D711975></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0[=E6=9C=AA=E7=99=
=BB=E5=BD=95] <SPAN>2007-04-13 13:36 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl16_NameLink =
target=3D_blank>dd</A> </DIV>
<DIV class=3DpostText>[e-mail] =
=E4=B9=9F=E8=AF=B7=E5=8F=91=E4=B8=80=E4=BB=BD=E7=BB=99=E6=88=91=EF=BC=81=E4=
=B8=87=E5=88=86=E6=84=9F=E8=B0=A2=EF=BC=81&nbsp;&nbsp;<A=20
onclick=3D'return SetReplyAuhor("dd")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Ddd"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl16_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl16$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl16_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#715882">#</A>&nbsp;<A=20
name=3D715882></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2007-04-16 21:16 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl17_NameLink=20
href=3D"http://laughterwym.cnblogs.com/" target=3D_blank>laughterwym</A> =
</DIV>
<DIV=20
class=3DpostText>@=E4=B8=80<BR>=E6=9C=80=E5=A5=BD=E4=BD=A0=E5=A5=BD=E5=A5=
=BD=E7=9C=8B=E7=9C=8B=E8=BF=99=E7=AF=87=E6=96=87=E7=AB=A0=E7=9C=9F=E6=AD=A3=
=E7=9A=84=E5=87=BA=E5=A4=84=E5=9C=A8=E5=AE=9A=E5=A4=BA=E4=B8=8B=EF=BC=8C=E8=
=AF=B4=E8=AF=9D=E8=A6=81=E5=A5=BD=E5=A5=BD=E8=80=83=E8=99=91=E4=B8=8B=EF=BC=
=8C=E8=B0=A2=E8=B0=A2<BR>@=E7=AC=A8=E7=8C=AB&amp;dd<BR>=E9=99=84=E4=BB=B6=
=E5=9C=A8=E8=BF=99=E7=AF=87=E6=96=87=E7=AB=A0=E7=9A=84=E6=9C=80=E5=90=8E=E5=
=B7=B2=E7=BB=8F=E6=8F=90=E4=BE=9B=E4=BA=86=EF=BC=8C=E9=82=AE=E4=BB=B6=E4=B9=
=9F=E5=B7=B2=E7=BB=8F=E5=8F=91=E4=BA=86&nbsp;&nbsp;<A=20
onclick=3D'return SetReplyAuhor("laughterwym")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dlaughterwym"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
id=3DAjaxHolder_Comments_CommentList_ctl17_DeleteLink=20
href=3D"javascript:__doPostBack('AjaxHolder$Comments$CommentList$ctl17$De=
leteLink','')"></A>&nbsp;&nbsp;<A=20
id=3DAjaxHolder_Comments_CommentList_ctl17_EditLink></A> =
</DIV></DIV><BR>
<DIV class=3Dpost>
<DIV class=3DpostTitle><A title=3D"permalink: re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0"=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#725152">#</A>&nbsp;<A=20
name=3D725152></A>re: =
JPEG=E5=8E=8B=E7=BC=A9=E7=BC=96=E7=A0=81=E7=AC=94=E8=AE=B0 =
<SPAN>2007-04-24 13:23 </SPAN><A=20
id=3DAjaxHolder_Comments_CommentList_ctl18_NameLink =
target=3D_blank>sasuash</A>=20
</DIV>
<DIV class=3DpostText>[e-mail] please send me one , thank=20
you!&nbsp;&nbsp;<A onclick=3D'return SetReplyAuhor("sasuash")'=20
href=3D"http://www.cnblogs.com/laughterwym/archive/2006/06/23/433793.html=
#post">=E5=9B=9E=E5=A4=8D</A>&nbsp;&nbsp;<A=20
title=3D=E6=9F=A5=E7=9C=8B=E8=AF=A5=E4=BD=9C=E8=80=85=E5=8F=91=E8=A1=A8=E8=
=BF=87=E7=9A=84=E8=AF=84=E8=AE=BA =
href=3D"http://www.cnblogs.com/comment?author=3Dsasuash"=20
target=3D_blank>=E6=9B=B4=E5=A4=9A=E8=AF=84=E8=AE=BA</A> <BR><A=20
i