17d5139e9SJoris Van Damme<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 27d5139e9SJoris Van Damme<html lang="en"> 37d5139e9SJoris Van Damme<head> 47d5139e9SJoris Van Damme <title>Extending LibTiff library with support for the new BigTIFF format</title> 57d5139e9SJoris Van Damme <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> 67d5139e9SJoris Van Damme <meta http-equiv="content-language" content="en"> 77d5139e9SJoris Van Damme</head> 87d5139e9SJoris Van Damme<body lang="en" text="#000000" bgcolor="#ffffff" link="#0000ff" alink="#0000ff" vlink="#0000ff"> 97d5139e9SJoris Van Damme <h1>Extending LibTiff library with support for the new BigTIFF format</h1> 107d5139e9SJoris Van Damme <p> 11*d4dd6cccSBob Friesenhahn <a href="http://www.simplesystems.org/libtiff//">LibTiff</a> maintainers have started work on LibTiff 4.0, 127d5139e9SJoris Van Damme the next major upgrade of the time-proven <a href="http://www.awaresystems.be/imaging/tiff.html">TIFF</a> 137d5139e9SJoris Van Damme codec. This upgrade will include support for the new BigTIFF file format. It is planned a preliminary 147d5139e9SJoris Van Damme version (LibTiff 4.0alpha1) will be operational by June 15, 2007. Testing and final release improvements 157d5139e9SJoris Van Damme for LibTiff 4.0 will be completed by July 30, 2007. 167d5139e9SJoris Van Damme </p> 177d5139e9SJoris Van Damme <p> 187d5139e9SJoris Van Damme BigTIFF logically extends the original TIFF file format (referred to as 'ClassicTIFF' from now on), 197d5139e9SJoris Van Damme breaking the 4 gigabyte boundary, with 64bit offsets allowing files up to 18,000 petabytes in size. The 207d5139e9SJoris Van Damme BigTIFF specification is the result of work by a variety of parties on the LibTiff mailing list, including 217d5139e9SJoris Van Damme the current LibTiff maintainers, Joris Van Damme and Adobe staff. The BigTIFF specification has not yet 227d5139e9SJoris Van Damme been officially approved by the TIFF specification owner (Adobe), but implementation within LibTiff 237d5139e9SJoris Van Damme could accelerate that process. For more information on the BigTIFF file format, we recommend AWare Systems' 247d5139e9SJoris Van Damme <a href="http://www.awaresystems.be/imaging/tiff/bigtiff.html">BigTIFF page</a>. 257d5139e9SJoris Van Damme </p> 267d5139e9SJoris Van Damme <p> 277d5139e9SJoris Van Damme BigTIFF will be especially useful for people and vendors that are confronted with very large images, and 287d5139e9SJoris Van Damme still seek to use an open, simple, and extendable format. This requirement is frequently encountered in the 297d5139e9SJoris Van Damme geospatial field, but also concerns large format scanners, medical imaging and other fields. 307d5139e9SJoris Van Damme </p> 317d5139e9SJoris Van Damme <p> 327d5139e9SJoris Van Damme The LibTiff BigTIFF upgrade is made possible by four sponsors funding the project. The programming work will 337d5139e9SJoris Van Damme primarily be done by <a href="http://www.awaresystems.be/index.html">Joris Van Damme (AWare Systems)</a>. 347d5139e9SJoris Van Damme LibTiff's licensing agreement will remain unchanged. More details on the project itself, are available from 35*d4dd6cccSBob Friesenhahn the <a href="http://www.simplesystems.org/libtiff//BigTIFFProposal.html">BigTIFF in LibTiff project page</a>. 367d5139e9SJoris Van Damme </p> 377d5139e9SJoris Van Damme <p> 387d5139e9SJoris Van Damme The sponsors are, in alphabetical order: 397d5139e9SJoris Van Damme </p> 407d5139e9SJoris Van Damme <table cellspacing="4" cellpadding="4" border="0"> 417d5139e9SJoris Van Damme <tbody> 427d5139e9SJoris Van Damme <tr> 437d5139e9SJoris Van Damme <td><img src="bigtiffpr_images/esri.png" width="128" height="78" alt="ESRI" border="0"></td> 447d5139e9SJoris Van Damme <td><a href="http://www.esri.com/">ESRI</a> has been giving customers around the world the power to 457d5139e9SJoris Van Damme think and plan geographically since 1969. As the leader in GIS, ESRI applies innovative technologies to help 467d5139e9SJoris Van Damme organizations create, analyze, and visualize information for more informed decisions. Running on more than 477d5139e9SJoris Van Damme a million desktops and thousands of servers, ESRI applications are the foundation of the world's mapping and 487d5139e9SJoris Van Damme spatial analysis infrastructure.</td> 497d5139e9SJoris Van Damme </tr> 507d5139e9SJoris Van Damme <tr> 517d5139e9SJoris Van Damme <td><img src="bigtiffpr_images/leica.png" width="128" height="85" alt="Leica Geosystems Geospatial Imaging" border="0"></td> 527d5139e9SJoris Van Damme <td><a href="http://gi.leica-geosystems.com/default.aspx">Leica Geosystems Geospatial Imaging</a> offers a 537d5139e9SJoris Van Damme range of workflow solutions for photogrammetry, mapping, remote sensing, catalog management and exploitation 547d5139e9SJoris Van Damme of geospatial imagery. Enterprise organizations use this imagery as the basis for generating information for 557d5139e9SJoris Van Damme both education and decision making processes. Those who use Leica Geosystems products every day trust them 567d5139e9SJoris Van Damme for their precision, seamless integration, interoperability and superior customer support.</td> 577d5139e9SJoris Van Damme </tr> 587d5139e9SJoris Van Damme <tr> 597d5139e9SJoris Van Damme <td><img src="bigtiffpr_images/safe.png" width="128" height="53" alt="Safe Software" border="0"></td> 607d5139e9SJoris Van Damme <td><a href="http://www.safe.com/">Safe Software</a> is the maker of FME, a powerful spatial ETL (Extract, 617d5139e9SJoris Van Damme Transform and Load) tool that enables true data interoperability. FME manages the translation, 627d5139e9SJoris Van Damme transformation, integration and web-based distribution of geospatial data in 200 GIS, CAD, raster and 637d5139e9SJoris Van Damme database formats. Safe Software's FME technology is also embedded in numerous market-leading GIS and 647d5139e9SJoris Van Damme ETL applications.</td> 657d5139e9SJoris Van Damme </tr> 667d5139e9SJoris Van Damme <tr> 677d5139e9SJoris Van Damme <td><img src="bigtiffpr_images/weogeo.png" width="128" height="37" alt="WeoGeo" border="0"></td> 687d5139e9SJoris Van Damme <td><a href="http://www.weogeo.com/">WeoGeo</a> is a web-based data management resource for the geospatial 697d5139e9SJoris Van Damme industry that allows the free market exchange of mapping related imagery products, featuring an innovative 707d5139e9SJoris Van Damme solution that efficiently manages digital mapping files of any size. With an intuitive user interface 717d5139e9SJoris Van Damme and the scalable power of Amazon Web Services (AWS), geospatial professionals can view, sort, search, 727d5139e9SJoris Van Damme and share complex, high volume maps quickly and effectively.</td> 737d5139e9SJoris Van Damme </tr> 747d5139e9SJoris Van Damme </tbody> 757d5139e9SJoris Van Damme </table> 767d5139e9SJoris Van Damme</body> 777d5139e9SJoris Van Damme</html>
