Raster Bit Depth

GeoCue, Terrasolid and LP360 can all output Raster files with different Bit Depths. The bit depth (sometimes called pixel depth) of a cell determines the range of values that a particular raster file can store, which is based on the formula 2n (where n is the bit depth). For example, an 8-bit raster can have 256 unique values that range from 0 to 255. See Multi-band Imagery and Bit Depth for more information.

The chart below shows the different types of Raster’s that each product can output and the associated Bit Depths

Raster Type

Bit Depth

File Format

GeoCue
Grayscale (Intensity) 8-bit GeoTiff
Color by Class 24-bit GeoTiff
Color by Elevation 24-bit GeoTiff
Color by Source ID 24-bit GeoTiff
Color by Z-Difference 24-bit GeoTiff
Inverted Grayscale (Intensity) 8-bit GeoTiff
LP360
Elevation 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Slope 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Aspect 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Hillshade 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Intensity 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Elevation Difference 32-bit ASCII XYZ, ASCII Raster, Binary Float Raster, ESRI Binary Float Grid
Density 8-bit, 32-bit Tiff, Binary Raster
dZ 8-bit, 32-bit Tiff, Binary Raster
Terrasolid
Elevation Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Elevation Difference Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Intensity Hits Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Intensity Footprint Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Point Color Raster 24-bit (color) GeoTiff, Windows BMP
Point Class Raster 24-bit (color) GeoTiff, Windows BMP
Road Intensity Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Slope Raster 8-bit (greyscale), 8-bit (color), 24-bit (color) GeoTiff, Windows BMP
Triangulated Model Z Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Highest Hit Z Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Lowest Hit Z Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Average Hit Z Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Closest Hit Z Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Point Count Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Point Density Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Average Intensity Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Distance to Point Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Dz from Ground Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Surface Roughness Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Biggest Distance Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Average Distance Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff
Smallest Distance Lattice 16-bit, 32-bit, unsigned 16-bit, 64-bit(float) GeoTiff

 

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