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Input Format Notes
- Password-protected MrSID files cannot be used as input files.
- While GeoExpress encodes indexed color images, it is strongly recommended that you scan data into 8-bit grayscale or 24-bit color before encoding. In this case, 24-bit color refers to the number of bits for a pixel value in a three-band image.
- World files are supported for all image formats.
- The LAS, LAZ, MG4 LiDAR, and Text file formats are for LiDAR point clouds only.
- GeoExpress does not support LiDAR waveform data.
- GeoExpress has improved support for LAS 1.4 files. GeoExpress will read ELVRs that are under 64K bytes long, otherwise it will drop the ELVR.
When you compress floating point images, GeoExpress uses the quantization compression method. For more information on floating point images, see Using Quantization for Floating Point.
An option is available to allow world files to override native georeferencing. Note that this will override any coordinate reference system (CRS) metadata – including well-known text strings (WKTs) – that may have been embedded in the file. In this situation you can manually edit the image's CRS on the Reprojection Manager accessible by choosing Reproject from the Tools menu. For more information, see World Files.