I am currently using ArcGIS 10.3 and new to OBIA. My goal is to segment out portions of dead trees (burned) in uttarakhand forest fire 2016 (India) and not sure how to go about this. I have searched extensively online and had no luck as to any tutorials or steps to follow for object based image analysis process in ArcGIS. I am using Landsat 8 OLI (30m), SRTM DEM (1arc sec) and WorldView-2 (2m) spatial resolution imagery for this task. Here is my plan and please correct me if I am wrong. (For Landsat 8 OLI)

1.  Create a Natural Color Image using Bands 4,3,2.

2.  Establish training areas of dead trees (burned trees) and healthy lodgepole and red attack trees in the training sample manager.

3.  Create a signature file

4.  Under ArcToolbox>Spatial Analyst Tools>Segmentation and Classification>Classify Raster

Are these steps suitable to segment for the landsat image?

Any help would be greatly appreciated

Mehebub Sahana