Hi List, I've got a 4 band raster aerial photography (RGBI) that comprises lots of tiles. I've merged some of the tiles together with:
gdal_merge -o 1.tif -of GTiff -co TILED=YES -co BIGTIFF=YES -co > COMPRESS=JPEG -co JPEG_QUALITY=50 -co BLOCKXSIZE=512 -co BLOCKYSIZE=512 > --optfile tiff_list.txt But the resultant file looks funny in QGIS. This is what the source file looks like (correct): [image: Inline images 1] This is what the merged file looks like (wrong): [image: Inline images 2] All the shadows are a whitey colour. This doesn't happen with 3-band (RGB) images. I've tried comparing individual bands; they all look different in the 4-band. However, if I open the four-band in ArcGIS, it looks fine (both source and original). Anyone know what's going on? Is it a QGIS bug or is it doing something "smart"; I can't see anything odd going on with symbology. Thanks, Jonathan -- This transmission is intended for the named addressee(s) only and may contain sensitive or protectively marked material up to RESTRICTED and should be handled accordingly. Unless you are the named addressee (or authorised to receive it for the addressee) you may not copy or use it, or disclose it to anyone else. If you have received this transmission in error please notify the sender immediately. All email traffic sent to or from us, including without limitation all GCSX traffic, may be subject to recording and/or monitoring in accordance with relevant legislation.
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