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*Details: File format summary



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Name Enhanced Compression Wavelet
Other names  
Identifiers PUID:  fmt/371
Classification Image (Raster)
Description ECW (Enhanced Compression Wavelet) is a proprietary wavelet compression image format optimized for geospatial imagery, which can quickly compress and decompress huge images, especially aerial and satellite imagery. It was developed by Earth Resource Mapping, and is now owned by ERDAS, which is owned by Leica Geosystems. The requirement of using the ECWP format for any application is that it requires the user to download and install enabling software in the form of a plug-in or in the case of the Java applet, a Java runtime environment (JRE).
Orientation Text
Byte order  
Related file formats None.
Technical Environment  
Supported until  
Format Risk  
Developed by Earth Resource Mapping, Inc. / Earth Resource Mapping, Inc.
Supported by None.
Source Digital Preservation Department / The National Archives
Source date 03 Nov 2011
Source description Format information supplied by the Geospatial Multistate Access and Preservation Partnership (GeoMAPP), a grant funded collaboration involving North Carolina, Kentucky, Utah, and Montana state archives, and sponsored by the National Digital Information Infrastructure Preservation Program (NDIIPP) of the Library of Congress.
Last updated 03 Nov 2011
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