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Poor title for this question, but I can't think of a better way to explain it.

I have merged two rasters. I want the joins to be seamless, but there is an obvious line where they meet...

enter image description here

I've tried playing around with the histogram buttons, but don't seem to be able to make them any better. Any ideas how I should change the rasters before merging?

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  • Is your raster a Panchromatic image or a multiband one? That kind of issues happened to me quite a few times with PCT rasters.
    – Moreau Colin
    Commented Jul 8, 2016 at 13:56
  • Hi @MoreauColin, it's a single band from some Sentinel 2 imagery. I was planning to merge all the bands individually and then do a land-cover classification of the .vrt.
    – EcologyTom
    Commented Jul 8, 2016 at 14:12
  • You will need to perform atmospheric correction on the images before merging.
    – HeikkiVesanto ♦
    Commented Jul 8, 2016 at 14:45
  • Hi @Vesanto, I've spent a few days playing around with these, trying DOS1 correction, but it doesn't seem to be having any effect. The resulting image is still patchy. If there are any other suggestions, they would be welcome!
    – EcologyTom
    Commented Jul 18, 2016 at 14:31
  • DOS3 or DOS4, FLAASH, ATCOR, ACORN, 6S, all option for atmospheric correction. The more costly commercial packages also have seam stitching. Is this the same band? How did you decide that seam?
    – HeikkiVesanto ♦
    Commented Jul 18, 2016 at 16:00

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