[gdal-dev] copy raster data in between file formats - Java

[Imran Rajjad]

Dear List,

Have been trying to write raster from one file format e.g. BMP into a
tiff file which will eventually become a BIGTiff. The current output
is a grey image whereas the output should be RGB. The GeoTiFF is not
accepting bands for some reasons, To write a multiband geoTiff do we
require to add each band separately or is there something missing in
the below code snippet?

                gdal.AllRegister();				
		Driver driver = gdal.GetDriverByName("GTiff");
		Dataset dst = driver.Create("d:\\test.tif", 256, 256,3,gdalconst.GDT_Byte);
		Dataset src = gdal.Open("d:\\test.bmp");
	
		
		byte[] outputPixels = new byte[src.GetRasterXSize() *
src.GetRasterYSize() * src.getRasterCount()*Integer.SIZE];
		src.ReadRaster(0, 0, src.getRasterXSize(), src.getRasterYSize(),
src.getRasterXSize(), src.getRasterYSize(), gdalconst.GDT_Byte,
outputPixels, null, 0);
		dst.WriteRaster(0, 0, src.getRasterXSize(), src.getRasterYSize(),
src.getRasterXSize(), src.getRasterYSize(), gdalconst.GDT_Byte,
outputPixels, null, 0);
		dst.FlushCache();
		dst.delete();
		src.delete();


for testing purpose, currently only trying on small 256 x 256 image,
the gdalinfo of the source image is as :

Files: test.bmp
Size is 256, 256
Coordinate System is `'
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0,  256.0)
Upper Right (  256.0,    0.0)
Lower Right (  256.0,  256.0)
Center      (  128.0,  128.0)
Band 1 Block=256x1 Type=Byte, ColorInterp=Red
Band 2 Block=256x1 Type=Byte, ColorInterp=Green
Band 3 Block=256x1 Type=Byte, ColorInterp=Blue



regards,
-- 
I.R