pylibjpeg-openjpeg

A Python wrapper for openjpeg, with a focus on use as a plugin for for pylibjpeg

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Project links

Homepage

Project description

pylibjpeg-openjpeg

A Python 3.7+ wrapper for openjpeg, with a focus on use as a plugin for pylibjpeg.

Linux, OSX and Windows are all supported.

Installation

Dependencies

NumPy

Installing the current release

python -m pip install -U pylibjpeg-openjpeg

Installing the development version

Make sure Python, Git and CMake are installed. For Windows, you also need to install Microsoft's C++ Build Tools.

git clone --recurse-submodules https://github.com/pydicom/pylibjpeg-openjpeg
python -m pip install pylibjpeg-openjpeg

Supported JPEG Formats

Decoding

ISO/IEC Standard	ITU Equivalent	JPEG Format
15444-1	T.800	JPEG 2000

Encoding

Encoding of JPEG 2000 images is not currently supported

Transfer Syntaxes

UID	Description
1.2.840.10008.1.2.4.90	JPEG 2000 Image Compression (Lossless Only)
1.2.840.10008.1.2.4.91	JPEG 2000 Image Compression

Usage

With pylibjpeg and pydicom

from pydicom import dcmread
from pydicom.data import get_testdata_file

ds = dcmread(get_testdata_file('JPEG2000.dcm'))
arr = ds.pixel_array

Standalone JPEG decoding

You can also decode JPEG 2000 images to a numpy ndarray:

from openjpeg import decode

with open('filename.j2k', 'rb') as f:
    # Returns a numpy array
    arr = decode(f)

# Or simply...
arr = decode('filename.j2k')

Project details

These details have not been verified by PyPI

Project links

Homepage

Release history Release notifications | RSS feed

2.4.0

Oct 28, 2024

2.3.0

Jun 18, 2024

2.2.2 yanked

Jun 17, 2024

Reason this release was yanked:

Use v2.3.0 for numpy v2.0

2.2.1

Mar 25, 2024

2.2.0

Mar 23, 2024

2.1.1

Jan 20, 2024

2.1.0

Jan 13, 2024

2.0.0

Jan 7, 2024

1.3.2

Feb 20, 2023

1.3.1

Jan 16, 2023

This version

1.3.0

Dec 17, 2022

1.2.1

Feb 3, 2022

1.2.0

Jan 22, 2022

1.1.1

Apr 10, 2021

1.1.0

Apr 10, 2021

1.0.1

Jun 15, 2020

1.0.0

Jun 12, 2020

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Source Distribution

pylibjpeg-openjpeg-1.3.0.tar.gz (362.5 kB view hashes)

Uploaded Dec 17, 2022 Source

Built Distributions

pylibjpeg_openjpeg-1.3.0-cp310-cp310-win_amd64.whl (565.7 kB view hashes)

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