The ER Mapper Pro software product includes unlimited ECW compression at no extra cost (and no per GB charges!). When you compress your imagery into ECW format, the result is a much smaller single file that can be stored, sent, and displayed even on small devices. For example, we offer our TerraColor image products in ECW to dramatically reduce the file sizes while retaining the original color and fine detail. The compressed images can also be speedily served to 1000's of users via the Internet using the Image Web Server.Įarthstar Geographics and our clients have used the ECW technology since its inception. This means that images that were previously too large for practical use can now be easily used and distributed. It is a wavelet-based, lossy compression, similar to JPEG 2000.

Enhanced Compressed Wavelet (ECW) is a revolutionary image format that allows compression of imagery up to 50:1 with almost no visual loss of information. Enhanced Compressed Wavelet (ECW) is an ERDAS ER Mapper proprietary format. There is no inherent limitation to image size in the compression technology.However,any image saved in this format must be at least 128 x 128 pixels.Any non-. Dear List, Could anyone send me a small sample ecw file with associated ers header file Im trying to test a script to change the georeferencing in the ers file in order to shift the image in ArcView and I cant find an ers file or figure out how to create one when I compress a tif using the ECW Compressor 2.2.

Er mapper ecw compressor