Cloud coloring

The following commands help the user to manage the color layers of point clouds.


Histogram

To optimize the point clouds color's contrast by histogram stretching. Only single channel layer can be used (reflectance, gray scale layers...).
This command is available in the Property browser dialog.

Colors mapping

To manage an artificial colorization for a given color layer of a point cloud. Color information can be scalar (e.g. reflectance, range, confidence) or vectorial (e.g. inclination). It’s also possible to add layers from external images.

Color with altitudes

To add to the selected point cloud(s) an extra color layer, representing the altitude of the points with respect to one of the tree axes of the current UCS. 

Inclination from plane

To add to the selected point cloud(s) an extra color layer, representing the inclination of the points' normals with respect to a given plane that exists in the project.
Use it to classify points for a further vegetation removal.


Color with range
To add a layer coloring the distance from the relative observation point.

Color with ambient light
To add to the selected point cloud(s) an extra color layer, 
Visualization of outdoor large mapped areas can be enhanced with this layer.


Compute 3D reflectance

To add to the selected point cloud(s) a special color layer, named 3D Reflectance, that mixes LiDAR intensity and point normals (inclination) to enhance both geometrical and surface characteristics.

Add color layer from image
To apply an image on the point cloud (e.g. a 2Dview after a color editing).

Merge or split layers
To combine RGB and scalar layers to obtain a customized new layer of color for point clouds.


See Photo & Color for more details.