How to overlay one Landsat image to cover only the data gaps of

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Last Post 27 Jul 2012 09:33 AM by anon

How to overlay one Landsat image to cover only the data gaps of another

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anon

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27 Jul 2012 09:33 AM
Hi, I have 2 Landsat images from 2 years, one with the scanline corrector working, so there is clear image (with no data gaps) while the other has data gaps caused by the failure of the scanline corrector. I have created a mask of the data gaps and now want to overlay the missing information from my first clear image onto the areas where the data is missing from my second image. Could anyone help with this? Many thanks in advance.

MariM

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Posts:2396
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27 Jul 2012 11:49 AM
You could try the georeferenced mosaic tool under the Map menu. Be sure to move the SLC-off image on top and then use a data value to ignore of 0 so you can see through the image to the underlying SLC-on image.

Deleted User

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Posts:12

30 Jul 2012 01:15 PM
I have had good results using the Landsat Gapfill extension available in the User Community Code Library. This routine will adjust the histograms of the filling image to better match the image to be filled. I have a short FAQ on how to use it, some considerations and tips for selecting images to match: http://www.yale.edu/ceo/D...sat_ETM_Gap_Fill.pdf

Deleted User

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03 Aug 2012 08:36 AM
Many thanks you two for the help- all sorted now!

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