Importing Point Clouds with RBG color values...

[AndrewRoberts]

I have a point cloud of a section of coastline which I derived from a digital elevation model. I also have a satellite image of this section of coastline as well. I am attempting to append the R,G,B colour values of the satellite image to the points such that when I mesh the points in Cloud Compare, it displays as a three dimensional satellite image.

I am appending the color values of the satellite image in ArcGIS by using...


As seen here in the attributes table...


I import the ascii table into Cloud Compare...


When it is imported into Cloud Compare it does show some features like roads and towns but it doesn't have the same color that the original satellite image had...




Is this even possible? Is there a much easier way to do this? Or am I asking to much of the software?

THANKS!
-Andrew

[daniel]

I wonder about the rgb values in the exported ascii table: is there any value above 64? Or even 128? Colors seem very dark. This is generally a sign that the rgb values have not been exported between 0 and 255 (as CC is excepting). If this is the case, two choices:

• either find an option in ArcGIS to export the value between 0 and 256
• or use the 'Edit > Color > Levels' tool in CC to boost the color spectrum (but it would be a bit too late as you would have already lost some information).

[AndrewRoberts]

The values in the table are between 45-166.

This is what I would want the colors to look like.


**Edit:
I'll have to mess around with Arc to see if I can export it differently.

[daniel]

That's weird, because 45-166 seem to fit perfectly in 0-255 (and not 0-128 or 0-64 ;). Have you tried to use the Edit > Colors > levels tool? (just set the 45-166 interval as input).