topic Re: Removing stripes from Landsat 7 SLC OFF images in Imagery and Remote Sensing Questions

Removing stripes from Landsat 7 SLC OFF images

LauraDoughty — Thu, 03 Sep 2015 12:27:28 GMT

I am currently trying to find a way of removing the stripes left from the SLC sensor malfunction on Landsat 7. Is there a realtively quick and simple way of filling the 'no data' stripes in ArcGIS?

I will be using the images for land classification on scenes taken between 2002 and 2013, so using images from other satellites is not an option.

I would appreciate any assitance!

Re: Removing stripes from Landsat 7 SLC OFF images

ChrisDonohue__GISP — Thu, 03 Sep 2015 14:41:41 GMT

If you have access to the Spatial Analyst Extension, one possibility is to recalculate the No Data areas to a different value using CON:

Conditional Evaluation with Con

ArcGIS Help (10.2, 10.2.1, and 10.2.2)

Con (Spatial Analyst) tool

ArcGIS Help (10.2, 10.2.1, and 10.2.2)

One caveat - doing so will universally change all No Data areas, so check to see if there are areas where No Data will still be appropriate. If that is the situation, there will be other process steps needed to limit the area that is recalculated.

Chris Donohue, GISP

Re: Removing stripes from Landsat 7 SLC OFF images

DanPatterson_Retired — Thu, 03 Sep 2015 14:46:05 GMT

Chris, your links go nowhere, Rebecca proposed how to fix them (can't find the link) or just use 10.3 links they are 99% the same as 10.2

Re: Removing stripes from Landsat 7 SLC OFF images

ChrisDonohue__GISP — Thu, 03 Sep 2015 15:24:19 GMT

I'll try using the 10.3 links from now on. Not sure why the 10.2 ones don't seem to work anymore....

Chris Donohue, GISP

Re: Removing stripes from Landsat 7 SLC OFF images

Luke_Pinner — Thu, 03 Sep 2015 23:02:58 GMT

If you have access to ENVI, the user contributed Landsat gapfill tool is very good at filling the gaps. The tool covers the three USGS gap fill methods:

single image triangulation interpolation
two image global histogram matching
two image local histogram matching

The two image methods require two SLC-Off scenes, one to be filled and one to fill with. I try to stick to scenes from the previous or next cycle but that's not always possible due to cloud.

The 3rd method "two image local histogram matching" is the most computationally expensive, but produces by far the best results.

Before:

After local histogram matching and pansharpening:

Re: Removing stripes from Landsat 7 SLC OFF images

NICOLAPEDDIS — Fri, 04 Sep 2015 14:13:46 GMT

You can also take a look here at the main NASA/USGS project

Filling the Gaps to use in Scientific Analysis

video on youtube

Gap fill Landsat 7 - SLC off project - YouTube

data here

SLC_off project.rar - Google Drive

And here external link to download the arcgis 9/10 toolbox

SLC_off project.rar — RGhost — file sharing

Take a look also at these good tutorials here

Integrated Geospatial Education and Technology Training Project

Re: Removing stripes from Landsat 7 SLC OFF images

LauraDoughty — Tue, 08 Sep 2015 13:49:35 GMT

Hi Nicola,

Thanks for your response. I am having trouble getting the SLC_off project toolbox into ArcGIS. Could you talk me through how to do it?

Regards,

Laura

Re: Removing stripes from Landsat 7 SLC OFF images

NICOLAPEDDIS — Tue, 08 Sep 2015 14:05:19 GMT

Laura, you need the original mask image file to blend with the SLC_off image form the ETM+7 band. In the same way it work in Envi

Re: Removing stripes from Landsat 7 SLC OFF images

LauraDoughty — Tue, 08 Sep 2015 14:10:35 GMT

Sorry maybe I wasn’t clear I can’t actually get the toolbox into ArcGIS using the download from the link you provided (SLC_off project.rar — RGhost — file sharing <https://community.esri.com/external-link.jspa?url=http://rghost.net/6zRRxJTpB> ) Do I need to save it in a particular place? And what is the process for adding it to the ArcGIS toolbox?

Thanks,

Laura

Re: Removing stripes from Landsat 7 SLC OFF images

NICOLAPEDDIS — Tue, 08 Sep 2015 14:29:00 GMT

Laura, in the archive are present 2 toolboxes, one for arcgis 9.x and one for arcgis 10.x, 2 pdfs.

Now seeing the old archive i forgot to add the 2 toolboxes..

Here a fresh new external link complete

gapfil_AG9x_10x.rar — RGhost — file sharing

Sorry for the troubles

Re: Removing stripes from Landsat 7 SLC OFF images

LauraDoughty — Tue, 08 Sep 2015 14:50:11 GMT

Thanks Nicola,

It’s working fine now!

Re: Removing stripes from Landsat 7 SLC OFF images

LauraDoughty — Tue, 15 Sep 2015 18:10:00 GMT

Hi Nicola,

The Gapfill toolbox was working fine however today it stopped working. I have tried re-installing it but I can't seem to find the tbx file in either of the links you provided. Do you still have a tbx file you could send me?

Thanks,

Laura