Landsat Gapfill tool for ETM SLC-off data

You can perform single file gap-fill using a triangulation method, or a two file gap-fill which requires an SLC-on image to use for filling the SLC-off image.  For the two file option, you can choose to use global or local statistics to perform the histogram matching between the files.  Performing a local histogram matching takes significantly longer to process but the matching between the datasets is better.

The two-file methodology for filling gaps was adapted from the USGS article "SLC Gap-Filled Products, Phase One Methodology". 

Place the landsat_gapfill.sav in the \envixx\save_add directory.  A new button is placed in the Basic Tools ->Preprocessing ->Data-specific utilities ->Landsat TM menu called 'Landsat Gapfill'.

Author: Mari Minari