nice. +1 On Tue, 2007-08-21 at 18:17 +0200, Carsten Ziegeler wrote: > The proposal is nearly unchanged from the original submission. Full > text is attached below. (or you can find it at the wiki at > http://wiki.apache.org/incubator/SanselanProposal) > > Please cast your votes: > > [ ] +1 Accept this project into the incubator > [ ] -1 No, because.... > > Thanks > Carsten > > -------- > Proposal Draft > -------------- > > > = Sanselan, a Pure-Java Image Library = > > === Abstract === > > Sanselan is a pure-java image library for reading and writing a variety > of image formats. > > === Proposal === > > The sanselan image libary will provide a portable toolkit for reading > and writing a variety of image formats. This includes parsing of the > image info (size, color space, icc profile etc.), metadata (ie. EXIF) > and image data. > > Common operations (such as reading an image) should be simple and > require little code, but every operation should also allow > fine-grained control through optional arguments. > > Correctness is preferred over performance. Completeness (ie. support > of all features/variations of the image file formats) is preferred. > Flexibility (ie. ability to treat files, byte arrays and input streams > interchangeably) is preferred. > > Though hiding the differences between the file formats in common > usage, the library should also provide the means to explore the > internals of the file formats (for example, what jfif segments or png > chunks are present). > > > === Background === > > The initial work on Sanselan was begun in 2004 by Charles M. Chen, and > was open sourced soon after. Much of the code was finished by the end > of 2004, and work since then has been primarily been bug fixes, > simplification of the API, and addition of optional parameters to > allow finer-grained control. > > Since its release, Sanselan has been used by a variety of projects > from around the world. > > Definitions: > > In the context of Sanselan, "Image Info" refers to things like > image size, bits per pixel, color space, transparency, etc. "Image > Metadata" refers to structured metadata (ie. EXIF) embedded in an > image format (ie. JFIF), for example, Geocoding, time taken, encoder > info, etc. "Image Data" refers to the raw data that is interpreted to > decode pixel info. > > > === Rationale === > > There are many libraries dealing with image formats in the Java World, > but still, each of them has problems when it comes to portability, > specification conformance and functionality. Some of the libraries > require non-portable native-code, others support reading of specific > formats but not writing etc. > > Sanselan offers all of the following for its core file formats: > > a. file format identification. > a. fast extraction of image info (such as size, color type, etc.) in a > format-neutral structure, without reading the image data. > a. extraction of icc profiles without reading image data. > a. extraction of image metadata without reading image data. > a. simple, concise syntax for common usages. > a. optional fine-grained control over reading and writing images. > a. color-correctness by applying icc profile, gamma and color space > color metadata. > a. reading and writing images. > > For those formats which Sanselan cannot read & write image data (ie. > jpeg/jfif, photoshop/psd and windows icon/ico), Sanselan can still > read image info and metadata. > > Sanselan's code will be available under the flexible Apache license. > > The Sanselan project attempts to streamline this duplication of efforts. > We believe that by starting the Sanselan project with an existing > codebase, this will create a library without the defects mentioned above > and might also create enough interest and tension to draw in other image > libraries/code to get an even bigger functionality set. > > > === Initial Goals === > > The initial goals of the proposed project are: > > * Viable community around the Sanselan codebase > * Active relationships and possible cooperation with related projects > and communities > * Initial generic code base dealing with image formats and metadata > * Implementation of a variety of image formats. > > > == Current Status == > > The current code base has been developed my Charles M. Chen > (http://www.fightingquaker.com/sanselan/) in his spare time. It > provides a very good > basis. The code has to be (and will be) donated to Apache by Charles. > It is already licensed under the Apache 2.0 license. > The further development will be based on this code base taking it > wherever the community wants it to be. > > The project has been refactored to remove any external dependencies. > It has been loosely tested, and deployed in a variety of production > environments. > > No patent issues obtain. The file formats in question are well > documented and stable. > > > === Meritocracy === > > All the initial committers are familiar with the meritocracy principles > of Apache, and have already worked on the various source codebases. We > will follow the normal meritocracy rules also with other potential > contributors. > > > === Community === > > There is not yet a clear Sanselan community. The current code base has a > number of interested users. The primary goal of the incubating project is > to build a self-sustaining community around this code base. > > > === Core Developers === > > The initial set of developers comes from various backgrounds, with > different but compatible needs for the proposed project. > > Charles Chen has written all of the current code in the project, > though others have helped point out specific bugs. Charles continues > to patch bugs as he becomes aware of them, as well as continuing work > on improving the API. > > > === Alignment === > > Apache contributes a strong development environment together with a > solid brand to help make this project a success. There are several > existing libraries, each with their own advantages and disadvantages. > Bringing the project to Apache will help gather the community around a > single project. > > There will also be connections to existing Apache projects like the Tika > project and perhaps commons. > > > == Known Risks == > > By adopting this project, the Apache project would place itself in > implicit competition with the other available image libraries. > > > === Orphaned products === > > There is a high need in quality image libraries for Java. Sanselan > currently has a strong user base and among this user base is a very > strong interest in this project. > > > === Inexperience with Open Source === > > The project's original developer, Charles Chen, has contributed in > small ways to open source projects for years. However, he has never > been actively involved in an open source project with a thriving > community and doesn't have any experience in fostering or coordinating > such a community. > > The other developers have a big experience with open source projects, > especially with Apache projects and are long time users of Sanselan. > However, we look forward to cultivating that community under the > guidance of the Apache organization. > > > === Homogenous Developers === > > We will see... :) > > === Reliance on Salaried Developers === > > Actually, no one is paid to work on this project. Charles Chen has > continued to work on this project for 3 years without being paid. > > Some of the developers are paid to work on this or related projects, but > the proposed project is not the primary task for anyone. > > > === Relationships with Other Apache Products === > > Sanselan is related to at least the following Apache projects. None of > the projects is a direct competitor for Sanselan. > > * [http://incubator.apache.org/tika/ Apache Tika] - Tika provides a > framework to extract metadata out of documents. The plan is to develop > Tika parsers using Sanselan. > * [http://xmlgraphics.apache.org/ Apache XML Graphics] - Batik and FOP > both make extensive use of image libraries. The Commons subproject even > contains some image codecs. > * [http://harmony.apache.org/ Apache Harmony] - The ImageIO API is > part of the class library and Harmony has to provide implementations > (currently only JPEG?). > > === A Excessive Fascination with the Apache Brand === > > All of us are familiar with Apache and we have participated in Apache > projects as contributors, committers, and PMC members. We feel that the > Apache Software Foundation is a natural home for a project like this. > > > == Documentation == > > * Sanselan (http://www.fightingquaker.com/sanselan/) > > > == Initial Source == > > Sanselan will start with the contributed code base: > > * The [http://www.fightingquaker.com/sanselan/ Sanselan] project > > > == Source and Intellectual Property Submission Plan == > > All seed code and other contributions will be handled through the normal > Apache contribution process. > > We will also contact other related efforts for possible cooperation and > contributions. > > > == External Dependencies == > > None. > > > == Cryptography == > > Sanselan itself will not use cryptography, but it is possible that at a > later time support for image formats > is developed that requires cryptography. Currently there is no such > support/code. > > > == Required Resources == > > Mailing lists > > * [EMAIL PROTECTED] > * [EMAIL PROTECTED] > * [EMAIL PROTECTED] > > Subversion Directory > > * https://svn.apache.org/repos/asf/incubator/sanselan > > Issue Tracking > > * JIRA Sanselan (SANSELAN) > > Other Resources > > * none > > == Initial Committers == > > || '''Name''' || '''Email''' || > '''CLA''' || > || Charles M. Chen || charlesmchen at gmail dot com || no > || > || Carsten Ziegeler || cziegeler at apache dot org || yes > || > || Philipp Koch || pkoch at day dot com || no > || > > > == Affiliations == > > || '''Name''' || '''Affiliation''' || > || Charles M. Chen || - || > || Carsten Ziegeler || [http://www.day.com/ Day Management AG] || > || Philipp Koch || [http://www.day.com/ Day Management AG] || > > == Sponsors == > > Champion > > * Carsten Ziegeler (cziegeler at apache dot org) > > Nominated Mentors > > * Craig Russell ([EMAIL PROTECTED]) > * Yoav Shapira (yoavs[at\a.o) > * Jeremias Maerki ([EMAIL PROTECTED], not available before Oct 2007) > * others TBD > > Sponsoring Entity > > * We are asking the Incubator PMC to sponsor this proposal. > > -- Henning P. Schmiedehausen -- [EMAIL PROTECTED] | J2EE, Linux, |gls 91054 Buckenhof, Germany -- +49 9131 506540 | Apache person |eau Open Source Consulting, Development, Design | Velocity - Turbine guy |rwc |m k INTERMETA - Gesellschaft fuer Mehrwertdienste mbH - RG Fuerth, HRB 7350 |a s Sitz der Gesellschaft: Buckenhof. Geschaeftsfuehrer: Henning Schmiedehausen |n
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