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Using Lossless Compression

Use lossless compression to compress an image or point cloud as much as possible without discarding any data. You can use lossless compression to create MrSID Generation 3, MrSID Generation 4, JPEG 2000, LAS, LAZ, and BPF images.

Lossless compression typically yields a 2:1 compression ratio which yields a 50% reduction in the file size. Use lossless compression when you need the compressed file to be identical to the original file.

1. Click the Add Image icon to add an image or point cloud to the Job List.
2. Select the image or point cloud in the Job List.
3. In the Properties tab, select the Lossless radio button.

NOTE: If you compress an image that has already been compressed, you can select the Lossless radio button to ensure that GeoExpress does not discard any additional data.