ECW
File format
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ECW is a proprietary wavelet compression image format used for aerial photography and satellite imagery. It was developed by Earth Resource Mapping, which is now owned by Intergraph, part of Hexagon AB. It is a lossy compression format for images.... Wikipedia
Developed by: Hexagon Geospatial
Filename extension: ecw
Latest release: ECW v3 - ECW/JP2 SDK v5.3; June 14, 2016