Re: [gdal-dev] Extracting Jpeg2000 image from nitf file

2023-05-26 Thread Tobby Moalem
look for /vsisubfile/ files > > Even > > Le 26/05/2023 à 08:57, Tobby Moalem a écrit : > > Hi, > > For my understanding the nitf file is used as container, where > > compressed jpeg2000 can be saved inside the nitf file. > > I wonder if there is a way to use gdal

[gdal-dev] Extracting Jpeg2000 image from nitf file

2023-05-25 Thread Tobby Moalem
Hi, For my understanding the nitf file is used as container, where compressed jpeg2000 can be saved inside the nitf file. I wonder if there is a way to use gdal to extract the jpeg2000 part and save it separately (with extension of .j2c or other jpeg2000 extensions) ? Thanks in advance, Tobby

[gdal-dev] JPEG2000 change progression order without decoding

2023-05-02 Thread Tobby Moalem
I wonder if there is a way to change the progression order of jpeg2000 images, without the need of decoding it and then encode it again. For example if I have an image with RPCL progression and I want to convert it to LRCP. Is there a way to only move bits around (change the order of the file) inst

Re: [gdal-dev] JPEG2000 with COG like structure

2023-04-29 Thread Tobby Moalem
andhi > Spatial Thoughts > www.spatialthoughts.com > <https://mailtrack.io/trace/link/f9609ee3ad14467596aab38dba52bda35825bff6?w=bXRvYmJ5NTlAZ21haWwuY29t&url=http%3A%2F%2Fwww.spatialthoughts.com&userId=8747767&signature=0f058cfed806f1e3> > > > > On Fri, Apr 28, 2023

[gdal-dev] JPEG2000 with COG like structure

2023-04-27 Thread Tobby Moalem
I am looking for a way to use my JPEG2000 over object storage (s3) efficiently. JPEG2000 structure is progressive by resolution, meaning that in order to get the maximum resolution of a tile, all previous resolutions have to be decoded. This leads to performing many GET request that cause slow perf