Hi Ammar,
have you checked that the original geotiff tiles have a white border or a
nodata border?
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On Sun, Jan 12, 2014 at 7:31 PM, Ammar <[email protected]> wrote:
> Dear list,
>
> I have merged 21 GeoTIFF images using GDAL utilities. Each image is the
> result of merging 500 smaller tiles. I am using ImageMosaic in Geoserver
> but I am getting a mosaic that contains white lines
>
> What could be the reason behind having those white lines?
>
> The commands that I used are: (recommended by Jonathan Mule)
> <http://osgeo-org.1560.x6.nabble.com/Tips-on-serving-Orthophotos-as-ImageMosaic-tt5093083.html#a5093104>
>
>
> gdalbuildvrt -srcnodata 255 -vrtnodata 255 -a_srs EPSG:27700
> -input_file_list tiff_list.txt mosaic.vrt
>
> gdal_translate -of GTiff -co TILED=YES -co BIGTIFF=YES -co COMPRESS=JPEG
> -co JPEG_QUALITY=80 -co BLOCKXSIZE=512 -co BLOCKYSIZE=512 -co
> PHOTOMETRIC=YCBCR mosaic.vrt mosaic.tif
>
> gdaladdo mosaic.tif -r average --config COMPRESS_OVERVIEW JPEG --config
> JPEG_QUALITY_OVERVIEW 60 --config INTERLEAVE_OVERVIEW PIXEL --config
> PHOTOMETRIC_OVERVIEW YCBCR 2 4 8 16 32 64 128 256 512
>
> Thank you in advance
>
> //Ammar
>
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