# Colorization of Point Clouds

## Summary

Once a Point Cloud has been created and calibrated and the Camera(s) have also been calibrated, the .cloud file is ready to have RGB extraction applied to it.&#x20;

## Details&#x20;

SpatialExplorer enables the user to colorize a point cloud using a variety of metrics all derived from a ray-based algorithm for customizable extraction.

## **Video Walkthrough**

{% embed url="<https://youtu.be/2tDxmSWx5Mg?t=118>" %}

### Extract Color From Camera Images

* To colorize a loaded CLOUD file, select the **"**&#x63;olorize cloud" tool by clicking on the paint bucket icon from the point cloud tools list

![Opening Cloud Colorization tool ](/files/-M_XQLKMjQbMHdGiaCg3)

* Upon opening, the Colorize Cloud tool provides multiple options for RGB extraction. &#x20;
* How a singular point derives the RGB value extracted into it is based off of one of four options:
  * **Distance**&#x20;
  * **Time**
  * **Smooth (requires Pro license)**
  * **Flashlight (requires Pro license)**

![Cloud Colorization tool](/files/-M_XSRy7NxnnlCN7EiSN)

* The "Distance Metric used", along with the user selected parameters, dictates how each point is colorized.&#x20;
* It is recommended to try all of the distance metrics available until you arrive at a desirable result.
* The "Smoothing range", "Sharpness factor (smooth only)", and "Position tolerance \[m]" settings above are recommended for colorization.&#x20;
* Click "OK" to begin pointcloud colorization processing
* After colorization is complete, SpatialExplorer will allow the user to accept or cancel the colorization of the point cloud. &#x20;
* The cloud will display the newly colorized points, enabling the user to analyze the point cloud and accept or cancel the extraction. &#x20;
* Once the colorization is accepted, the newly found RGB values displayed in the point cloud must be saved in order to permanently write the RGB values to the .cloud file.&#x20;
* &#x20;Use the 'save cloud' tool to write these values to the .cloud file.

![](/files/-M_XUEsHpnDSwU9cKuDR)

### **Extract Color From Orthomosaic**

* Colorization of the point cloud can also be accomplished through the use of an orthomosaic created outside of SpatialExplorer. &#x20;
* 'Open File' to open an orthomosaic with geospatial reference created outside of SpatialExplorer
* Highlight the orthomosaic in the project window and use the 'colorize cloud' button


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