This requires the storage of points in TerraScan FastBinary format.

The number of the image used for extracting the color can be stored for each laser point. The process can involve the computation and storage of image numbers. There are different methods of color value extraction from raw images which are either suitable for airborne or mobile data sets. The color for a laser point is derived by resampling the color values of all the pixels inside a circular area around the point. LAS 1.4 format and later can store up to 4 color channels, LAS 1.2 format and later and TerraScan Binary files up to 3. The maximum amount of color channels can only be stored in the TerraScan FastBinary format. TerraScan can extract up to 10 color channels for each point. The command requires TerraPhoto or TerraPhoto Lite running on the same computer. In addition, a color point file can be used to balance colors of the raw images before the color values are assigned to the laser points. The color sources can be orthophotos attached as TerraPhoto raster references or raw images in an active TerraPhoto image list. Extract color from images command extracts color values from raster images and assigns the values to laser points.

Data extract software by color