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| | PNG - Wikipedia, the free encyclopedia |
 | | The motivation for creating the PNG format came in early 1995, after Unisys announced that it would be enforcing software patents on the LZW data compression algorithm used in the GIF format (the acronym PNG was originally recursive, standing for "PNG's Not GIF"). | | | Although the PNG specification always talks about the bitdepth of channels, most software and users generally talk about the total number of bits per pixel (sometimes also referred to as bitdepth or color depth). | | | Other popular graphics programs which support the PNG format are Adobe Photoshop and The GIMP. |
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http://en.wikipedia.org/wiki/PNG
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| | PNG images - PNG Image Format |
| | PNG format allows the gamma value of the computer which created an image to be embedded into the image file. | | | PNG format offers binary transparency equivalent to GIF transparency. | | | PNG uses a more sophisticated scheme which begins rendering the image after only 1/64 of the data has arrived. |
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http://www.webcolors.freeserve.co.uk/png
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| | [No title] |
| | Informational [Page 33] RFC 2083 PNG: Portable Network Graphics March 1997 where x ranges from zero to the number of bytes representing the scanline minus one, Raw(x) refers to the raw data byte at that byte position in the scanline, and Prior(x) refers to the unfiltered bytes of the prior scanline. | | | Two examples of PNG editors are a program that adds or modifies text chunks, and a program that adds a suggested palette to a truecolor PNG file. | | | Informational [Page 37] RFC 2083 PNG: Portable Network Graphics March 1997 These rules are expressed in terms of copying chunks from an input file to an output file, but they apply in the obvious way if a PNG file is modified in place. |
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http://www.ietf.org/rfc/rfc2083.txt
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| | Benefits of the PNG Image Format |
| | A PNG image with alpha is capable of 256 levels of transparency. | | | PNG interlacing (formally known as Adam 7) begins by only reading a small percentage of all the data and filling in the empty spaces with an interpolated color value. | | | The PNG format does not have any patent restrictions and can be read and written freely by software developers and webmasters alike. |
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http://www.atalasoft.com/PNG.aspx
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| | Intro to PNG Features |
| | Nevertheless, at least one reasonably good algorithm is not only known but also described in the PNG specification and implemented in freely available software. | | | PNG supports three main types of integrity-checking to help avoid problems with file transfers and the like. | | | The Portable Network Graphics (PNG) format was designed to replace the older and simpler GIF format and, to some extent, the much more complex TIFF format. |
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http://www.libmng.com/pub/png/pngintro.html
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| | Group 42: PNG Info |
| | Portable Network Graphics (PNG) was created in response to the GIF licensing debacle and is optimized for graphics use on the Internet and other on-line services. | | | PNG has been accepted as an image standard by the WWW Consortium and is slowly being integrated into the major web browsers including Netscape and Internet Explorer. | | | PNG supports image depths up to 24-bit and provides a better lossless compression than that found in GIF files. |
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http://www.group42.com/png.htm
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| | A List Apart: Articles: Cross-Browser Variable Opacity with PNG: A Real Solution |
| | Whereas PNG supports alpha transparency, GIF only supports binary transparency, which is a big limitation and has a couple of important implications. | | | The PNG home site, for instance, talks about a few other obscure browsers that should support alpha transparency, but that haven’t been verified yet. | | | In this simple example, we see how the same 80% opaque PNG can be displayed on any kind of background: Translucent Image on a Photo. |
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http://www.alistapart.com/stories/pngopacity
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| | Webopedia: JPG vs. GIF vs. PNG |
| | PNG was developed as a patent-free answer to the GIF format but is also an improvement on the GIF technique. | | | PNG builds on the idea of transparency in GIF images and allows the control of the degree of transparency, known as opacity. | | | For further information on these graphics formats, see: |
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http://www.webopedia.com/DidYouKnow/Internet/2002/JPG_GIF_PNG.asp
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| | PNG - a Whatis.com definition - see also: , Portable Network Graphics |
| | More information is available at The PNG Home Page, which also describes what level of PNG support is provided by different browsers and viewers. | | | Like a GIF, a PNG file is compressed in lossless fashion (meaning all image information is restored when the file is decompressed during viewing). | | | Unlike the GIF89a, the PNG format doesn't support animation since it can't contain multiple images. |
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http://whatis.techtarget.com/definition/0,289893,sid9_gci214307,00.html
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| | PNG Tips for Cartoonists |
| | PNG is an Open Source image format, so you can use it however you want. | | | In particular, Photoshop is notorious for its inefficient handling of PNG files. | | | A godsend for the PNG user, pngcrush is a command-line utility, written by Glenn Randers-Pehrson, which can greatly reduce a PNG's file size. |
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http://hackles.org/etc/png.html
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| | PNG (Portable Network Graphics) Home Site |
| | PNG (pronounced "ping") is the Portable Network Graphics format, a format for storing bitmapped (raster) images on computers. | | | The informal history below is worth reading both for general background and for a summary of PNG's main features, but most people will probably find the basic introduction and the lists of applications to be of the greatest interest and utility. | | | Since GIF had been showing its age in a number of ways even prior to that, the announcement only catalyzed the development of a new and much-improved replacement format. |
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http://www.libpng.org/pub/png
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| | AMI PNG/MNG Construction Set |
| | Implement transparency in still and animated PNG and MNG files. | | | Convert animated MNG files to AVI for use with PowerPoint. | | | It will assemble your original animations effortlessly through its Animation Wizard, squeeze them down to as close to nothing as possible with its Supercompressor; create eyecatching banners and animated transitions; manage your MNG files; add transparency to existing PNG graphics and a lot more. |
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http://www.mindworkshop.com/alchemy/pngpro.html
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| | US-CERT Technical Cyber Security Alert TA04-217A -- Multiple Vulnerabilities in libpng |
| | The Portable Network Graphics (PNG) image format is used as an alternative to other image formats such as the Graphics Interchange Format (GIF). | | | The libpng is a popular reference library available for application developers to support the PNG image format. | | | Under some circumstances, a null pointer may be dereferenced during a memory allocation in the |
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http://www.us-cert.gov/cas/techalerts/TA04-217A.html
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| | Proper PNG Support in Internet Explorer for Windows Petition |
| | The PNG format is a World Wide Web Consortium (W3C) recommendation: Microsoft has repeatedly stated their renewed commitment to web standards, so implementing full PNG support would be the next logical step in fulfilling this promise, especially since it was supposed to be implemented over four years ago. | | | The Proper PNG Support in Internet Explorer for Windows Petition to the Microsoft Internet Explorer for Windows Development Team was created by webmasters and web designers and written by Aaron Adams. | | | Using PNG images with alpha transparency would eliminate all of these problems, and make the work of web designers a lot easier. |
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http://www.petitiononline.com/msiepng/petition.html
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| | PNG - Webopedia.com |
| | This document describes PNG (Portable Network Graphics), an extensible file format for the lossless, portable, well-compressed storage of raster images. | | | The PNG home page offers a set of reference pages for locating code and information related to the PNG image format. | | | The most recent versions of Netscape Navigator and Microsoft Internet Explorer now support PNG. |
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http://winplanet.webopedia.com/TERM/P/PNG.html
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| | LIBPNG |
| | This is an open source project to develop and maintain the reference library for use in applications that create and manipulate PNG (Portable Network Graphics) raster image files. | | | UPDATE 20 August 2004: In the rush to get libpng-1.2.6 out to solve the vulnerability described below, a bug was introduced that causes almost all PNG output files to be written with incorrect zlib header bytes. | | | The mailing list for libpng developers and developers of libpng-based applications is png-implement (at) ccrc.wustl.edu. |
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http://libpng.sourceforge.net
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| | SourceForge.net: PNG and MNG/JNG image formats: home site |
| | PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites | | | About PNG and MNG/JNG image formats: home site | | | Download PNG and MNG/JNG image formats: home site |
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http://sourceforge.net/projects/png-mng
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| | PHP: imagepng - Manual |
| | So the problem was not with the png library, but rather with the PDFlib. | | | imagepng -- Output a PNG image to either the browser or a file | | | ) in PNG format to standard output (usually the browser) or, if a filename is given by the |
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http://www.php.net/manual/en/function.imagepng.php
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| | PNG driver |
| | Several environment variables effect the operation of the PNG driver. | | | compression level of PNG files (0 = none, 1 = fastest, 9 = best) | | | The PNG driver uses libpng (see the libpng home page) and zlib (see the info-zip home page), all which needs to be installed for the PNG driver to work (it's worth it). |
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http://grass.itc.it/gdp/html_grass5/html/pngdriver.html
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| | Portable Network Graphics |
| | It is a very nice program (VuePrint (aka PhotoVue Plus)) by Hamrick Software, and I have suggested to Ed Hamrick that he add PNG support. | | | To save space on my disk, I used Galleria to convert all my GIF files to PNG. | | | Conversion between the formats is easy, and it has a large selection of image filters and other effects. |
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http://r0k.us/graphics/pngBase.html
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| | Lori's Web Graphics: PNG - Beyond GIF |
| | The technical reasons for PNG's new popularity include, among other things, the compactness of PNG images, the number of colors available using PNG, and the ability to manipulate the transparency of more than one color in more than one way in PNG images. | | | Older browsers such as Netscape Navigator 3 and MS Internet Explorer 3 can't display PNG images. | | | If you'd like to learn more about PNG, head out to the PNG Home Site and to the other PNG-related sites listed there. |
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http://loriweb.pair.com/png.html
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| | PngSuite - the official set of PNG test images |
| | As far as that is possible, all formats supported by the PNG standard are represented. | | | When the PNG file contains a background chunk, this should be used for pictures with alpha-channel or pictures with a transparency chunk. | | | PNG files can contain a chunk giving a histogram of the colors in the image. |
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http://www.schaik.com/pngsuite
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| | PNG transparency test |
| | I am aware that MSIE 5.5+ for Windows supports an "AlphaImageLoader" filter that can be used to display PNG images with transparency. | | | There are other test pages listed at the PNG web site. | | | To determine how your browser handles PNG transparency, find the images on the right that look the most similar. |
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http://entropymine.com/jason/testbed/pngtrans
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| | PowerNet Global - PNG Long Distance |
| | Using leading edge technologies PNG now offers a growing spectrum of communications solutions to both businesses and customers. | | | dial-around (you do not need to switch your long distance to PNG to enjoy low international calling rates) | | | If you do not feel comfortable with submitting your order via our secure Internet site you may 1) call the PNG agent at 1-877-550-5918 |
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http://www.pngnet.com
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| | PNG Diving, Papua New Guinea |
| | Request information or order our beautiful full color latest catalog. | | | Dive sites in PNG are truly a magical experience. | | | Check for our current PNG group dive trips on our Dive Discovery home page! |
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http://www.divediscovery.com/png
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| | Saugus.net: png |
| | The portable network graphics image format is designed to replace the GIF. | | | PNG is completely lossless and can handle millions of colors; it is not limited to a palette of two-hundred fifty-six like GIF. | | | It also has full support for transparent colors. |
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http://www.saugus.net/Computer/Extensions/png/view
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| | Current PNG References |
| | PNG documentation, applications and libraries for use in adding PNG to your applications are available by FTP from the following sites: |
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http://www.boutell.com/boutell/png
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| | AFL PNG :: pure AFL . . . purely Papua New Guinea |
| | AFL PNG is the representative of the AFL in PNG | | | AFL PNG has seen blossoming opportunities for their young players since the program began in 2002, but especially in 2005 through the formalisation of closer links with AFL Queensland. | | | “ I have been working hard and staying with Andrew Cadzow,CEO of AFL PNG. |
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http://www.afl-png.com
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| | PNG - The Professional Numismatists Guild |
| | This Code of Ethics shall be binding upon all PNG members and their registered representatives and employees, as well as on any non-member affiliated with any entity that (A) utilizes the PNG logo or trademark; (B) has a bourse table at a PNG-sponsored convention; or (C) is owned by, or employs, a PNG member. | | | Violations of the Code of Ethics shall constitute conduct prejudicial to the PNG for purposes of these By-Laws and may subject violators to censure, suspension or expulsion from PNG, in addition to any other remedies available under these Bylaws or applicable law. | | | To honor the provisions of PNG arbitration awards to which I am a party. |
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http://www.pngdealers.com/public/codeEthics.cfm
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| | PNG - The Professional Numismatists Guild |
| | PNG members are strictly forbidden to sell coins/currency that has been mis-represented in ANY way. | | | The combined membership of PNG has sold hundreds of millions of dollars in rare coins and currency, as well as contributed to the hobby by writing dozens of reference books on a wide variety of topics. | | | Our members are bound to a binding arbitration process. |
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http://www.pngdealers.com
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| | Papua New Guinea Travel Information Lonely Planet Destination Guide |
| | PNG's unspoilt nature consoles you for its rough edges. | | | You should verify critical information (like visas, health and safety, customs and transportation) with the relevant authorities before you travel. | | | Lake Kutubu is embellished by some of the Highlands' most stunning scenery, and the surrounding country is home to friendly people who still live a largely... |
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http://www.lonelyplanet.com/worldguide/destinations/pacific/papua-new-guinea
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| | Papua New Guinea Tourism Promotion Authority |
| | This has been achieved through successfully partnering agriculture, tourism, business and government for the common good of promoting social and economic life in the region. | | | Exchange rates (selling notes) against major currencies as offered by Westpac on February 22nd 2006. | | | We offer an intimate experience for our guests, by providing personal guidance from a unique adventure platform, in what is recognised as one of the last frontiers of today’s world. |
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http://www.pngtourism.org.pg
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| | maipng.com - Welcome to your Papua New Guinea Online! |
| | For more information about other special events/celebrations and the actual dates of the events, you can contact: | | | Did you know: Click to View List Entries. | | | maipng.com 2005 will bring you fresh new content, tantilising PNG recipies, daily news headlines, facts and statistics on Papua New Guinea, destination PNG - travel information, cool photo galleries and links to all the best PNG has to offer. |
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http://www.maipng.com
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