Denon DVD-A1UD User Manual download pdf (Page 65)

Лицензия



APostScriptversionofthisdocumentisavailablebyFTP

atftp://ftp.uu.net/graphics/jpeg/jf.ps.gz.Thereisalsoa

plain text version at ftp://ftp.uu.net/graphics/jpeg/jf.txt.

gz,butitismissingthegures.

TheTIFF6.0leformatspecicationcanbeobtainedby

FTP from ftp://ftp.sgi.com/graphics/tiff/TIFF6.ps.gz.  The

JPEGincorporationschemefoundintheTIFF6.0specof

3-June-92hasanumberofseriousproblems.

IJGdoesnotrecommenduseoftheTIFF6.0design(TIFF

Compressiontag6).

Instead, we recommend the JPEG design proposed by

TIFFTechnical Note#2 (Compression tag 7). Copies of

thisNotecanbeobtainedfromftp.sgi.comorfromftp://

ftp.uu.net/graphics/jpeg/.  It is expected that the next

revisionoftheTIFFspecwillreplacethe6.0JPEGdesign

withtheNote’sdesign.

Although IJG’s own code does not support TIFF/JPEG,

thefreelibtifflibraryusesourlibrarytoimplementTIFF/

JPEGper the Note.  libtiff is available from ftp://ftp.sgi.

com/graphics/tiff/.

ARCHIVELOCATIONS

The “ofcial” archive site for this software is ftp.uu.net

(Internetaddress192.48.96.9).Themostrecentreleased

versioncanalwaysbefoundthereindirectorygraphics/

jpeg.Thisparticularversionwillbearchivedasftp://ftp.

uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz.

Ifyoudon’thavedirectInternetaccess,UUNET’sarchives

are also available via UUCP; contact help

@uunet.uu.net

forinformationonretrievinglesthatway.

Numerous Internet sites maintain copies of the UUNET

les.However,onlyftp.uu.netisguaranteedtohavethe

latestofcialversion.

YoucanalsoobtainthissoftwareinDOS-compatible“zip”

archiveformat from the SimTelarchives(ftp://ftp.simtel.

net/pub/simtelnet/msdos/graphics/),oronCompuServein

theGraphicsSupportforum(GOCIS:GRAPHSUP),library

12“JPEGTools”.Again,theseversionsmaysometimes

lagbehindtheftp.uu.netrelease.

TheJPEG FAQ(FrequentlyAsked Questions)articleis a

useful source of general information about JPEG.  It is

updatedconstantly and thereforeisnot included inthis

distribution.  The FAQ is posted every two weeks to

Usenetnewsgroupscomp.graphics.misc,news.answers,

andothergroups.

ItisavailableontheWorldWideWebathttp://www.faqs.

org/faqs/jpeg-faq/andothernews.answersarchivesites,

including the ofcial news.answers archive at rtfm.mit.

edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-

faq/.

Ifyoudon’thaveWeborFTPaccess,sende-mailtomail-

server@rtfm.mit.eduwithbody

sendusenet/news.answers/jpeg-faq/part1

sendusenet/news.answers/jpeg-faq/part2

RELATEDSOFTWARE

Numerous viewing and image manipulation programs

nowsupportJPEG.(Quiteafewofthemusethislibrary

todoso.)TheJPEGFAQdescribedabovelistssomeof

themore popular free and shareware viewers,andtells

wheretoobtainthemonInternet.

IfyouareonaUnixmachine,wehighlyrecommendJef

Poskanzer’s free PBMPLUS software, which provides

many useful operations on PPM-format image les.  In

particular, it can convert PPM images to and from a

wide range of other formats, thus making cjpeg/djpeg

considerablymoreuseful.Thelatestversionisdistributed

by the NetPBM group, and is available from numerous

sites,notablyftp://wuarchive.wustl.edu/graphics/graphics/

packages/NetPBM/.

UnfortunatelyPBMPLUS/NETPBMisnotnearlyasportable

as the IJG software is; you are likely to have difculty

makingitworkonanynon-Unixmachine.

A different free JPEG implementation, written by the

PVRGgroupatStanford,

is available from ftp://havefun.stanford.edu/pub/jpeg/.

Thisprogramisdesignedforresearchandexperimentation

ratherthanproductionuse;itisslower,hardertouse,and

lessportablethantheIJGcode,butit is easier to read

and modify.  Also, the PVRG code supports lossless

JPEG,whichwedonot.(Ontheotherhand,itdoesn’tdo

progressiveJPEG.)

FILEFORMATWARS

SomeJPEGprogramsproducelesthatarenotcompatible

withourlibrary.

TherootoftheproblemisthattheISOJPEGcommittee

failed to specify a concrete le format.  Some vendors

“lled in the blanks” on their own, creating proprietary

formatsthatnooneelsecouldread.(Forexample,none

of the early commercial JPEG implementations for the

Macintoshwereabletoexchangecompressedles.)

The le format we have adopted is called JFIF (see

REFERENCES).  This format has been agreed to by a

number of major commercial JPEG vendors, and it has

becomethedefactostandard.JFIFisaminimalor“low

end”representation.

Werecommendthe use ofTIFF/JPEG (TIFF revision 6.0

as modied by TIFF Technical Note #2) for “high end”

applications that need to record a lot of additional data

about an image.  TIFF/JPEG is fairly new and not yet

widelysupported,unfortunately.

TheupcomingJPEGPart3standarddenesaleformat

calledSPIFF.

SPIFFis interoperable with JFIF, in the sense that most

JFIFdecodersshouldbeabletoreadthemostcommon

variant of SPIFF.  SPIFF has some technical advantages

overJFIF,butitsmajorclaimtofameissimplythatitisan

ofcialstandardratherthananinformalone.Atthispoint

itisunclearwhetherSPIFFwillsupersedeJFIForwhether

JFIF will remain the de-facto standard.  IJG intends to

supportSPIFFoncethestandardisfrozen,butwehave

notdecidedwhetheritshouldbecomeourdefaultoutput

formatornot.

(Inanycase,ourdecoderwillremaincapableofreading

JFIFindenitely.)

Various proprietary le formats incorporating JPEG

compressionalsoexist.

Wehavelittleornosympathyfortheexistenceofthese

formats.Indeed,oneoftheoriginalreasonsfordeveloping

this free software was to help force convergence on

common,openformatstandardsforJPEGles.Don’tuse

aproprietaryleformat!

TODO

Themajorthrustforv7willprobablybeimprovementof

visualquality.

The current method for scaling the quantization tables

is known not to be very good at low Q values.  We

also intend to investigate block boundary smoothing,

“poor man’s variable quantization”, and other means

of improving quality-vs-le-size performance without

sacricingcompatibility.

In future versions, we are considering supporting some

of the upcoming JPEG Part 3 extensions --- principally,

variablequantizationandtheSPIFFleformat.

Asalways,speedingthingsupisofgreatinterest.

Pleasesendbugreports,offersofhelp,etc.tojpeg-info

uunet.uu.net.

Exhibit-F

If you modify libpng you may insert additional notices

immediatelyfollowingthissentence.

libpng version 1.2.6, August 15, 2004, is Copyright (c)

2004GlennRanders-Pehrson,andisdistributedaccording

to the same disclaimer and license as libpng-1.2.5with

thefollowingindividualadded tothelistofContributing

Authors

CosminTruta

libpngversions1.0.7,July1,2000,through1.2.5-October

3, 2002, are Copyright (c) 2000-2002 Glenn Randers-

Pehrson, and are distributed according to the same

disclaimerandlicenseaslibpng-1.0.6withthefollowing

individualsaddedtothelistofContributingAuthors

Simon-PierreCadieux

EricS.Raymond

GillesVollant

andwiththefollowingadditionstothedisclaimer:

There is no warranty against interference with your

enjoyment of the library or against infringement.

Thereisnowarrantythatoureffortsorthelibrarywill

fulllanyofyourparticular purposesorneeds.This

libraryisprovidedwithallfaults,andtheentireriskof

satisfactoryquality,performance,accuracy,andeffort

iswiththeuser.

libpngversions0.97,January1998,through1.0.6,March

20, 2000, are Copyright (c) 1998, 1999 Glenn Randers-

Pehrson, and are distributed according to the same

disclaimerandlicenseaslibpng-0.96,withthefollowing

individualsaddedtothelistofContributingAuthors:

TomLane

GlennRanders-Pehrson

WillemvanSchaik

libpngversions0.89,June1996,through0.96,May1997,

are Copyright (c) 1996, 1997 Andreas Dilger Distributed

accordingtothesamedisclaimerandlicenseaslibpng-

0.88, with the following individuals added to the list of

ContributingAuthors:

JohnBowler

KevinBracey

SamBushell

MagnusHolmgren

GregRoelofs

TomTanner

libpng versions 0.5, May 1995, through 0.88, January

1996, are Copyright (c) 1995, 1996 Guy Eric Schalnat,

Group42,Inc.

Forthepurposesofthiscopyrightandlicense,“Contributing

Authors”isdenedasthefollowingsetofindividuals:

AndreasDilger

DaveMartindale

GuyEricSchalnat

PaulSchmidt

TimWegner

The PNG Reference Library is supplied “AS IS”.  The

Contributing Authors and Group 42, Inc. disclaim all

warranties, expressed or implied, including, without

limitation,thewarrantiesofmerchantabilityandoftness

for any purpose.  The Contributing Authors and Group

42,Inc.assumenoliabilityfordirect,indirect,incidental,

special,exemplary,orconsequentialdamages,whichmay

resultfromtheuseofthePNGReferenceLibrary,evenif

advisedofthepossibilityofsuchdamage.

Permission is hereby granted to use, copy, modify,

and distribute this source code, or portions hereof,

for any purpose, without fee, subject to the following

restrictions:

1. The origin of this source code must not be

misrepresented.

2. Alteredversionsmustbeplainlymarkedassuchand

must not be misrepresented as being the original

source.

3. ThisCopyrightnoticemaynotberemovedoraltered

fromanysourceoralteredsourcedistribution.

TheContributingAuthorsandGroup42,Inc.specically

permit,withoutfee,andencouragetheuseofthissource

codeasacomponenttosupportingthePNGleformat

incommercialproducts. If youusethis sourcecode in

aproduct,acknowledgmentisnotrequiredbutwouldbe

appreciated.

A“png_get_copyright”functionisavailable,forconvenient

usein “about”boxes and the like:printf(“%s”,png_get_

course)issuppliedintheles“pngbar.png”and“pngbar.

jpg(88x31)and“pngnow.png”(98x31).

Libpng is OSI Certied Open Source Software.  OSI

CertiedOpenSourceisacerticationmarkoftheOpen

SourceInitiative.

GlennRanders-Pehrson

glennrp@users.sourceforge.net

August15,2004

Exhibit-G

Permissiontouse,copy,modify,distribute,andsellthis

softwareanditsdocumentationforanypurposeishereby

granted without fee, provided that the above copyright

notice appear in all copies and that both that copyright

notice and this permission notice appear in supporting

documentation,andthatthenameofKeithPackardnotbe

usedin advertisingor publicitypertaining todistribution

ofthesoftwarewithoutspecic,writtenpriorpermission.

Keith Packard makes no representations about the

suitabilityofthissoftwareforanypurpose.Itisprovided

“asis”withoutexpressorimpliedwarranty.

KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH

REGARDTOTHISSOFTWARE,INCLUDINGALLIMPLIED

WARRANTIESOF MERCHANTABILITYAND FITNESS,IN

NOEVENTSHALLKEITHPACKARDBELIABLEFORANY

SPECIAL,INDIRECTORCONSEQUENTIALDAMAGESOR

ANYDAMAGESWHATSOEVERRESULTINGFROMLOSS

OFUSE,DATAORPROFITS,WHETHERINANACTIONOF

CONTRACT,NEGLIGENCEOROTHERTORTIOUSACTION,

ARISINGOUTOFORINCONNECTIONWITHTHEUSEOR

PERFORMANCEOFTHISSOFTWARE.

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 71 72

Comments to this Manuals

No comments

Denon DVD-A1UD User Manual Page 65

Comments to this Manuals

Related products and manuals for DVD players Denon DVD-A1UD