Introduction¶
The nvJPEG2000 library accelerates the decoding and encoding of JPEG2000 images on NVIDIA GPUs. The library is built on the CUDA platform and is supported on Pascal+ GPU architectures.
Note
Throughout this document, the terms “CPU” and “Host” are used synonymously. Similarly, the terms “GPU” and “Device” are synonymous.
nvJPEG2000 Decoder¶
The library utilizes both CPU and GPU for decoding. Tier 2 decode stage (first stage of decode; please refer to the JPEG2000 specification for details) is run on the CPU. All other stages of the decoding process are offloaded to the GPU.
The nvJPEG2000 decoder supports the following:
JPEG2000 Options:
Up to 16 bits per component
No of components : 4
Reversible(5-3) and irreversible(9-7) wavelet transforms
Multiple tiles per image
Up to 20 layers per image
Chroma sub-sampling types - 444, 422, and 420
All progression orders
Image and tile start coordinates should be 0
Tile/Resolution based decoding
Partial decoding of tiles and images
jp2 file format and jpeg2000 codestream
High throughput jpeg2000(All code-blocks have to be HT code-blocks with one HT set and no refinement)
Features:
Decode multiple images in pipeline mode. Refer to nvJPEG2000-Decoder-Pipelined sample for details.
Color conversion to RGB.
nvJPEG2000 Encoder¶
The library utilizes both GPU and CPU to create JPEG2000 bitstreams. The encode APIs require that the input image is on device memory, and the compressed bitstream will be written to host memory.
The nvJPEG2000 encoder supports the following JPEG2000 options:
Up to 16 bits per component
No of components : 4
Reversible(5-3) and irreversible(9-7) wavelet transforms
Multiple tiles per image
Single layer per image
All progression orders
Chroma sub-sampling types - 444, 422, and 420
jp2 file format and jpeg2000 codestream
PSNR based rate control
Prerequisites¶
CUDA Toolkit version 11.0 and above
CUDA Driver version r450 and above
Platforms Supported¶
Linux versions:
Architecture |
Distribution Information |
||||
|---|---|---|---|---|---|
Name |
Version |
Kernel |
GCC |
GLIBC |
|
x86_64 |
RHEL/CentOS |
9.1 |
5.14 |
11.3.1 |
2.34 |
8.3 |
4.18 |
8.5.0 |
2.28 |
||
7.9 |
3.10.0 |
6 |
2.17 |
||
Ubuntu |
22.04.1 |
5.15.0 |
11.2.0 |
2.34 |
|
20.04.1 |
5.13.0 |
9.3.0 |
2.31 |
||
18.04.5 |
5.4.0 |
7.5.0 |
2.27 |
||
OpenSUSE Leap |
15.4 |
5.14.21 |
7.5.0 |
2.31 |
|
SUSE SLES |
15.4 |
5.14.21 |
7.5.0 |
2.31 |
|
Debian |
11.6 |
5.10.0 |
10.2.1 |
2.31 |
|
10.13 |
4.19.0 |
8.3.0 |
2.28 |
||
Fedora |
37 |
6.07 |
12.2.1 |
2.36 |
|
Windows versions:
Windows 10 and Windows Server 2019
Support added from version 0.1.0 onwards
Thread Safety¶
Not all nvJPEG2000 types are thread safe. The following should be instantiated separately for each thread: nvjpeg2kDecodeState_t and nvjpeg2kStream_t