[gdal-dev] Saving 16 bit image
el_inca
pavkiz at mail.ru
Thu Jul 21 08:46:14 EDT 2011
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);
}
}
--
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