Hi, I usually run the next bat process: *REM* *set SRC=25831* *REM* *REM start for* *REM* *for /R %%f in (*.ecw) do (* *REM* *REM convert to geotif* *REM* *call C:\OSGeo4W64\bin\gdal_translate -a_srs EPSG:%SRC% "%%f" "%%~dpnf.tif" -co COMPRESS=JPEG -co JPEG_QUALITY=60 -co BLOCKXSIZE=128 -co BLOCKYSIZE=128* *REM* *REM create pyramides* *REM* *call C:\OSGeo4W64\bin\gdaladdo -r average --config COMPRESS_OVERVIEW JPEG --config PHOTOMETRIC_OVERVIEW YCBCR --config INTERLEAVE_OVERVIEW PIXEL --config JPEG_QUALITY_OVERVIEW 80 "%%~dpnf.tif" 2 4 8 16 32 64 128 256* *REM* *REM end for* *REM* *)*
the result are very fine for us! Regards, * <http://www.psig.es>* *Carlos López Quintanilla* www.psig.es [email protected] +34 699.680.261 Nota legal: Este mensaje y cualquier archivo adjunto está destinado únicamente a la persona a quien se dirige y es confidencial. Si usted ha recibido este mensaje por error, por favor, comuníqueselo al remitente y bórrelo inmediatamente. La utilización , revelación y/o reproducción del mensaje puede constituir un delito. Protección de Datos: Le informamos que sus datos de contacto electrónico se hallan incorporados a un fichero titularidad de CARLOS LÓPEZ QUINTANILLA, al objeto de envío de información, respuesta a consultas y contactos genéricos. Puede ejercer los derechos de acceso, rectificación, cancelación y oposición que establece la LOPD en cualquier momento, mediante escrito, acompañado de copia de documento oficial que le identifique, dirigido a CARLOS LÓPEZ QUINTANILLA CL. P arellada, 8 E2 de Corbera de Llobregat, 08757-Barcelona. También podrá oponerse a nuestros envíos de comunicaciones comerciales (Art.21.2 de la LSSI) a través de la siguiente dirección de correo electrónico: [email protected] 2017-03-04 22:27 GMT+01:00 Micha Silver <[email protected]>: > > > On 03/04/2017 09:42 PM, Even Rouault wrote: > >> >> On samedi 4 mars 2017 18:55:03 CET Micha Silver wrote: >> >> > Hello: >> >> > (I'm double posting as this problem is somewhere between GDAL and QGIS.) >> >> > >> >> > I have converted an ECW compressed aerial photo to geotiff with JPEG >> >> > compression on a Windows computer with gdal_translate. The resulting tif >> >> > image displays fine with QGIS on the Windows machine. GDAL version >> 2.1.3 >> >> > on the Windows computer, and QGIS 2.18.4 My command was similar to: >> >> > gdal_translate -of GTiff -projwin ..... -co TILED=YES -co TFW=YES -co >> >> > COMPRESS=JPEG -co PHOTOMETRIC=YCBCR in.ecw out.tif >> >> > >> >> > I then copy the tif (and tfw) to my Linux machine, and try to open with >> >> > QGIS, but QGIS crashes immediately. I should note that gdalinfo shows >> full >> >> > information on both the Windows and Linux systems. On the Linux computer >> >> > GDAL is 2.1.2 and QGIS is 2.18.4 . >> >> On the Linux system where this crashes with QGIS, could you do : >> >> gdalinfo -checksum -stats the.tif >> >> If this crashes, the issue is clearly in GDAL. Otherwise it is likely in >> QGIS. >> >> No crash, but I do see a Warning: > > gdalinfo -checksum -stats kidron_e2.tif Driver: GTiff/GeoTIFF Files: > kidron_e2.tif Size is 45200, 36000 .... > > Warning 1: JPEGLib:Premature end of JPEG file Minimum=0.000, > Maximum=255.000, Mean=163.947, StdDev=38.307 Checksum=49932 Metadata: > STATISTICS_MAXIMUM=255 STATISTICS_MEAN=163.94735676131 > STATISTICS_MINIMUM=0 STATISTICS_STDDEV=38.30668730016 Band 2 > Block=256x256 Type=Byte, ColorInterp=Green Description = Green > Minimum=0.000, Maximum=255.000, Mean=167.305, StdDev=32.125 Checksum=52 > Metadata: STATISTICS_MAXIMUM=255 STATISTICS_MEAN=167.3047566274 > STATISTICS_MINIMUM=0 STATISTICS_STDDEV=32.124800654502 Band 3 > Block=256x256 Type=Byte, ColorInterp=Blue Description = Blue Minimum=0.000, > Maximum=255.000, Mean=146.241, StdDev=31.604 Checksum=11457 Metadata: > STATISTICS_MAXIMUM=255 STATISTICS_MEAN=146.24062233882 > STATISTICS_MINIMUM=0 STATISTICS_STDDEV=31.603809219917 > > Also I have found that creating overlays seems to solve the problem (?!). > After running: > > gdaladdo --config COMPRESS_OVERVIEW JPEG --config PHOTOMETRIC_OVERVIEW > YCBCR --config INTERLEAVE_OVERVIEW PIXEL -r average kidron_e2.tif 2 4 8 16 > > the tiff opens fine in QGIS. > > Regards, > > Micha > > > >> >> > Any ideas what could be the cause of QGIS crashing with the >> gdal_translate >> >> > converted tif image? Is there something that needs to be done on >> windows to >> >> > create a Linux usable geotiff?? >> >> > >> >> > Thanks >> >> -- >> >> Spatialys - Geospatial professional services >> >> http://www.spatialys.com >> >> > -- > Micha Silver > cell: +972-523-665918 > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
_______________________________________________ Qgis-user mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
