Dear Drs. Richard McDonnell and Andrea Giudiceandrea, THANK YOU VERY MUCH for the helpful suggestions. I have been able to use "Wrap" tool for converting the files' formats and spatial resolutions under Batch processing. However, i now find a small difference between the batch processing through the"Wrap" tool and the processing of individual files. The data is in 32-bit Unsigned Integer (UInt32), which needs to be converted first to 16-bit Signed Integer (Int16). When i convert the files individually, the files get converted from 32-bit to 16-bit automatically, without asking, but under the Batch Processing through Wrap the 32-bit data is retained. Anyway, THANKS again for the immense help. With Best Regards, amal kar. -- ----------------------------
On Thu, 11 Jan 2024 at 14:55, Andrea Giudiceandrea via QGIS-User < qgis-user@lists.osgeo.org> wrote: > > Amal Kar akarcaz50 at gmail.com > > Thu Jan 11 00:16:21 PST 2024 > > > I am using the batch convert utility in my QGIS (ver. 3.18; Zurich) > within > > the GDAL Toolbox, especially its "Translate (Convert Format)" utility > under > > "Raster Conversion". > > While this utility converts all the files from .tif to .rst & .rdc very > > quickly and accurately, it does not have any scope of changing the pixel > > resolution > > Hi Amal Kar, > the "Translate (Convert Format)" GDAL processing algorithm is based on > the GDAL "gdal_translate" utility [1] as stated in the algorithm help > page [2]. > > The "gdal_translate" utility has various parameter to set the output > resolution [3] and the resampling method [4]. > > The "Translate (Convert Format)" algorithm exposes in the GUI only a > subset of the "gdal_translate" utility parameters. > Anyway you could provide additional parameters using the "Additional > command-line parameters" algorithm parameter. > > Another way could be to use the "Warp (reproject)" GDAL processing > algorithm [5] which is based on the GDAL "gdalwarp" utility and which > exposes in the GUI the both the output resolution and the resampling > method parameters. > > Best regards. > > Andrea > > > [1] https://gdal.org/programs/gdal_translate.html > [2] > > https://docs.qgis.org/3.28/en/docs/user_manual/processing_algs/gdal/rasterconversion.html#translate-convert-format > [3] > https://gdal.org/programs/gdal_translate.html#cmdoption-gdal_translate-tr > [4] > https://gdal.org/programs/gdal_translate.html#cmdoption-gdal_translate-r > [5] > > https://docs.qgis.org/3.28/en/docs/user_manual/processing_algs/gdal/rasterprojections.html#warp-reproject > _______________________________________________ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > -- Dr. Amal Kar Former Principal Scientist and Head, Division of Natural Resources & Environment, Central Arid Zone Research Institute, Jodhpur 342003, India A-1/6, Baitalik Housing Society, KMDA Housing Complex, Baghajatin (Near Hiland Park), KOLKATA 700 094, India Email: akarca...@gmail.com
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