Re: [GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
On Fri, 3 Jul 2015 14:06:58 +0200, Andrea Peri wrote: > No, it was not what I expected . > I expected to see the same image I see in the grass display (using d.rgb) > Instead I see someone completelly different. That is expected, and also depends on the program you use to visualise the data. Color is arbitrary for raster data. Not all formats actually allow transport of color info, and not all programs can read the color info provided in a given format. The question for you is: do you just want to export a georeferenced image with a specific color choice, or do you export the actual data which is independent of the colors (In any decent program you can define which color to assign to which value) ? If you want to export the data and the colors you created in GRASS GIS, your best bet would probably to export to any format using r.out.gdal and to export colors with r.colors.out. Or you can create an image with the colors you want using r.composite and then export just that. You would still need a program that can read the color table in the output format, or use r.colors.out. Moritz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
No, it was not what I expected . I expected to see the same image I see in the grass display (using d.rgb) Instead I see someone completelly different. thx. A. 2015-07-03 13:19 GMT+02:00 Moritz Lennert : > On 02/07/15 16:23, Andrea Peri wrote: >> >> Hi Markus, >> thx for hint. >> >> I tried but probably I miss something. >> because have an error: >> >>> ERROR 6: SetColorTable() not supported for multi-sample TIFF >>> files. >>> >>> ERROR 6: SetColorTable() can only be called on band 1. >>> ERROR 6: SetColorTable() can only be called on band 1. >> >> >> >> I defined a group named "gruppo" and insert in it the three raster I >> like to have for the three bands. >> >> After I execute this command: >> >> r.out.gdal -f --overwrite input=gruppo >> output=D:\temp\hpf_out_rescale2.tif format=GTiff type=Byte >> createopt=INTERLEAVE=PIXEL,TFW=YES,PROFILE=BASELINE,COMPRESS=DEFLATE >> >> This is the results log: > >> > [...] >> >> r.out.gdal completo. File created. > > > And the created file is not what you wanted ? > > Moritz -- - Andrea Peri . . . . . . . . . qwerty àèìòù - ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
On 02/07/15 16:23, Andrea Peri wrote: Hi Markus, thx for hint. I tried but probably I miss something. because have an error: ERROR 6: SetColorTable() not supported for multi-sample TIFF files. ERROR 6: SetColorTable() can only be called on band 1. ERROR 6: SetColorTable() can only be called on band 1. I defined a group named "gruppo" and insert in it the three raster I like to have for the three bands. After I execute this command: r.out.gdal -f --overwrite input=gruppo output=D:\temp\hpf_out_rescale2.tif format=GTiff type=Byte createopt=INTERLEAVE=PIXEL,TFW=YES,PROFILE=BASELINE,COMPRESS=DEFLATE This is the results log: > [...] r.out.gdal completo. File created. And the created file is not what you wanted ? Moritz ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
Hi Markus, thx for hint. I tried but probably I miss something. because have an error: >ERROR 6: SetColorTable() not supported for multi-sample TIFF >files. > >ERROR 6: SetColorTable() can only be called on band 1. >ERROR 6: SetColorTable() can only be called on band 1. I defined a group named "gruppo" and insert in it the three raster I like to have for the three bands. After I execute this command: r.out.gdal -f --overwrite input=gruppo output=D:\temp\hpf_out_rescale2.tif format=GTiff type=Byte createopt=INTERLEAVE=PIXEL,TFW=YES,PROFILE=BASELINE,COMPRESS=DEFLATE This is the results log: WARNING: Perdita di precisione: mappa raster di tipo DCELL da esportare come Byte. Può essere evitata usando Float64. WARNING: Perdita di precisione: mappa raster di tipo DCELL da esportare come Byte. Può essere evitata usando Float64. WARNING: Perdita di precisione: mappa raster di tipo DCELL da esportare come Byte. Può essere evitata usando Float64. WARNING: Si sta forzando l'esportazione del raster. Checking GDAL data type and nodata value... Using GDAL data type La mappa raster di input contiene celle con valore NULL (nessun dato). Il valore 255 verrà usato per rappresentare i valori delle celle senza dati nella mappa di input. È possibile specificare un valore per le celle senza dati con l'opzione nodata. Using GDAL data type La mappa raster di input contiene celle con valore NULL (nessun dato). Il valore 255 verrà usato per rappresentare i valori delle celle senza dati nella mappa di input. È possibile specificare un valore per le celle senza dati con l'opzione nodata. ERROR 6: SetColorTable() not supported for multi-sample TIFF files. Using GDAL data type La mappa raster di input contiene celle con valore NULL (nessun dato). Il valore 255 verrà usato per rappresentare i valori delle celle senza dati nella mappa di input. È possibile specificare un valore per le celle senza dati con l'opzione nodata. Exporting raster data to GTiff format... ERROR 6: SetColorTable() can only be called on band 1. ERROR 6: SetColorTable() can only be called on band 1. r.out.gdal completo. File created. Thx, A. 2015-07-02 12:56 GMT+02:00 Markus Neteler : > Hi, > > On Jul 2, 2015 11:58 AM, "Andrea Peri" wrote: >> >> Hi, >> I'm try-ing to export a raster RGB using this command: > > If you have the three RGB channels, you can export via a group: > > http://grass.osgeo.org/grass70/manuals/r.out.gdal.html#export-r,g,b-imagery-bands-in-geotiff-format-suitable-for-esri-software: > > Best > Markus -- - Andrea Peri . . . . . . . . . qwerty àèìòù - ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
Hi, On Jul 2, 2015 11:58 AM, "Andrea Peri" wrote: > > Hi, > I'm try-ing to export a raster RGB using this command: If you have the three RGB channels, you can export via a group: http://grass.osgeo.org/grass70/manuals/r.out.gdal.html#export-r,g,b-imagery-bands-in-geotiff-format-suitable-for-esri-software : Best Markus ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Exporting a raster tiff with RGB 3 bands produce a paletted tiff
Hi, I'm try-ing to export a raster RGB using this command: r.out.gdal -c input=input_image@PERMANENT output=/path-to-raster//output_image.tif format="GTiff" type="Byte" createopt="INTERLEAVE=PIXEL,TFW=YES,PROFILE=BASELINE,COMPRESS=DEFLATE" It produce successfully a tiff , but it is a paletted tiff. Instead I like to have a true-color RGB tiff. I miss some parameter ? Thx, -- - Andrea Peri . . . . . . . . . qwerty àèìòù - ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
