Norcross, US: ERDAS released ECW for ArcGIS Server, version 11.0.2. The company claimed that it provides a means for ArcGIS Server to deliver data in the ERDAS-patented Enhanced Compression Wavelet (ECW) format to clients via OGC-compliant Web Coverage Service (WCS) and Web Map Service (WMS).
Based on technology originally provided in ERDAS ECW/JP2 SDK version 4.2, ECW for ArcGIS Server enabled ArcGIS Server to support ECW imagery, providing the fastest decompression available. Using minimal memory, ECW can quickly decompress and open massive files, in many cases faster than uncompressed imagery can be opened. Additionally, multi-resolution level of detail is built into the file, eliminating the need to generate or distribute pyramids or overviews. The ECW technique does not require the creation and storage of intermediate tiles (RRDs), as they are an inherent part of the ECW format. ECW also supports opacity channels, allowing images to overlay other imagery cleanly without showing compression artifacts around the edges.
Initially introduced in April 2011, ECW for ArcGIS Server was greeted enthusiastically by the market, prompting this new release which extends the original capabilities. A key enhancement in ECW for ArcGIS Server version 11.0.2 is backward compatibility with ArcGIS Server 9.3 and 9.3.1 in addition to the previously supported ArcGIS Server 10. ECW for ArcGIS Server version 11.0.2 also supports the use of European Petroleum Survey Group (EPSG) codes in ECWP.
ECW for ArcGIS Server expands the industry-wide level of support for the ECW format. ECW is already supported in traditional desktop GIS, CAD and remote sensing packages, including ERDAS’ portfolio of products, as well as Intergraph’s such as GeoMedia. In addition, ECW is also supported in ArcGIS for Desktop, AutoCAD, Blue Marble Desktop, ENVI, Geomatica, LizardTech, GeoExpress, FalconView, Global Mapper, MapInfo, Manifold System, MicroStation, and Smallworld.