Exporting RGB image as GeoTIFF error



is it somehow possible to export RGB image in GeoTIFF format in python ?
This code works for formats like PNG, JPG, BMP, TIFF but I am unable to export it as GeoTIFF.

    def write_rgb_image(bands, filename, format):
           image_info = ProductUtils.createImageInfo(bands, True, ProgressMonitor.NULL)
           im = ImageManager.getInstance().createColoredBandImage(bands, image_info, 0)
           JAI.create("filestore", im, filename, format)

    red = product.getBand('gamma3')
    green = product.getBand('gamma2')
    blue = product.getBand('gamma')
    write_rgb_image([red, green, blue], gamma_export, 'TIFF')

When I change TIFF for GeoTIFF I get the error :

INFO: org.hsqldb.persist.Logger: dataFileCache open start
Traceback (most recent call last):
  File "RGB_composit.py", line 91, in <module>
  File "RGB_composit.py", line 87, in rgb_OLCI
    write_rgb_image([red, green, blue], gamma_export, 'GeoTIFF')
  File "RGB_composit.py", line 31, in write_rgb_image
    JAI.create("filestore", im, filename, format)
RuntimeError: java.lang.IllegalArgumentException: FileStore The specified format has no associated registered ImageCodec.

I’ve been looking all over the forum but I was unable to fix this. This error seems strange, since in SNAP GUI one can easily export RGB image as GeoTIFF.


Problem solved. Instead of using Java Advanced Imaging (JAI) library I have used snappy to generate GeoTIFF