Hi,
Do you suppose that the result would be two files:
"Ortho2024_3857_10cm_mask.tif"
"Ortho2024_3857_10cm_mask.tif.msk"
What the result is now? One file "Ortho2024_3857_10cm_mask.tif" with an
internal mast band, or what?
-Jukka Rahkonen-
Lähettäjä: gdal-dev <gdal-dev-boun...@lists.osgeo.org> Puolesta Maxime Demers
via gdal-dev
Lähetetty: maanantai 27. tammikuuta 2025 17.58
Vastaanottaja: gdal-dev@lists.osgeo.org
Aihe: [gdal-dev] using gdal.Warp to reproject a GTiff with an external nodata
mask (.msk)
Hi everybody, I hope you are all well!
I have an issue that I would need help about if possible.
I would like to use the GDAL Python bindings to reproject a TIFF that has an
external nodata mask stored in a separate .msk file. Also, this is important to
me to keep the jpeg compression.
After some tests, I found out that gdal.Warp does not reproject the .msk
Is there a way to acheive what I am trying to do?
import os
from osgeo import gdal
IN_RASTER = os.path.join(r"C:\\", "data", "Ortho",
"Ortho2024_32187_10cm_mask.tif")
OUT_RASTER = os.path.join(r"C:\\", "data", "Ortho",
"Ortho2024_3857_10cm_mask.tif")
src = gdal.Open(IN_RASTER)
dst = gdal.Warp(
OUT_RASTER,
src,
format="GTiff",
dstSRS="EPSG:3857",
creationOptions=["COMPRESS=JPEG", "PHOTOMETRIC=YCBCR", "TILED=YES",
"BIGTIFF=YES"],
callback=gdal.TermProgress_nocb
)
dst = None
[cid:image001.png@01DB70E5.9C908420]
Maxime Demers
Analyste en géomatique
Service de la planification
et de la gestion du territoire
Tél. : 819 823-8000 poste 2360
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