I merged several rasters, but there is a problem with lines between sheets.

Raster is created from LiDAR datasets. Rasters were produced from different datasets via this application: https://iaps.zrc-sazu.si/en/rvt#v and then merged.

For merging I used Raster > Miscellaneous > Merge in QGis 2.18.15.

Please see snapshot of a problem:

enter image description here

And the Merge function pop-up:

enter image description here

I found that even between unmerged sheets there is some minimal space:

enter image description here

How do I get rid of those lines?

Probably the original sin is already in the input.

  • What GIS software are you using? – PolyGeo Nov 20 '18 at 18:20
  • while merging your rasters, which option did you use? (sum, mean, first etc..) – Vale Nov 21 '18 at 16:07
  • .@PolyGeo - I am using QGis 2.18.15 @vale: I merged rasters in QGis via Raster>Miscellaneous>Merge. I have added additional information in the original post. – Nejc Nov 21 '18 at 20:51

It is possible that the black lines are pixels with missing data (no data). In this case, some options are:

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