pavkiz, You are using GDT_Byte in the RasterIO function call. If you want to write the date with 16bit depth you need to use GDT_Int16 or GDT_UInt16.
Check the translation with the GDAL utility gdal_translate [1] with the -ot option. [1]: http://www.gdal.org/gdal_translate.html On Thu, Jul 21, 2011 at 6:16 PM, el_inca <pav...@mail.ru> wrote: > Hi, > Can anybody help me with saving TIFF images? I need to save 8 bit image to > 16 bit image. > Raster data is keeping in Byte array. > When i save from 8 bit to 8 bit it works good. > But when i save from 8 to 16 bit Gdal creates an image, that i can read > after with this library, but not with another program that supports 16 bit > images. > I wrote a program that makes byte shift. So when shifting at 4 bytes in > each > image row it displays correctly. > In documentation i have read that GDAL automatically translates data types. > > Image colorscheme is in RGB. > > Here is the part of code: > > GDALDataset *new_dataset; > > new_dataset=driver->Create(Filename, > image_size_x, > image_size_y, > poDataset->GetRasterCount(), > GDT_Int16, > NULL); > > for (int raster=0;raster<poDataset->GetRasterCount();raster++) > { > GDALRasterBand *new_rasterband; > new_rasterband=new_dataset->GetRasterBand(raster+1); > for (int j=0;j<image_size_y;j++) > { > Byte * scanline=new Byte[image_size_x]; > new_rasterband->RasterIO(GF_Write, > 0,//start position in X > y,//start position in Y > image_size_x, > 1, > scanline, > image_size_x,//buffer > 1, > GDT_Byte, > 0, > 0); > } > } > > > > -- > View this message in context: > http://osgeo-org.1803224.n2.nabble.com/Saving-16-bit-image-tp6606613p6606613.html > Sent from the GDAL - Dev mailing list archive at Nabble.com. > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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