Multi-Band Image Raster to ASCII file

[CatherineFinkenbiner]

Please help,

I have uploaded multi-band Quickbird satellite image files into ArcGIS 10.1. Each layer has 4 bands (Red, Green, Blue, and Near-Infrared). I have created a false color composite of each satellite image (Band 1- NIR, Band 2- Red, Band 3- Green).

In order to analyze the variability of colors across the landscape, I hope to transform my ArcGIS layers into ASCII files displaying each of the colors as a number.

I have tried using the Raster to ASCII tool and a single text file is produced. I do not understand where the numbers in this text file are coming from or what the number values represent. I think each Band should be a separate ASCII file (one ASCII file for Band 1, one for Band 2, one for Band 3), I am just unsure how to convert a single band from a multi-band raster image into an ASCII text file.

If it is not possible to convert each band individually into an ASCII file, is their a way to combine all three color values into a single unique index?

Thank you,
Catie

[curtvprice]

I have tried using the Raster to ASCII tool and a single text file is produced.

The tool used the first band of the multiband raster.

You can access other bands by navigating into the multi-band raster in the Add Data dialog to select one of the bands. The exact path syntax used to access the individual bands depends on the raster data format.

[CatherineFinkenbiner]

Thank you!