pillow-jpegxl-plugin

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pillow-jpegxl-plugin

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Pillow plugin for JPEG-XL, using Rust for bindings.

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# pillow-jpegxl-plugin
![PyPI - Version](https://img.shields.io/pypi/v/pillow-jxl-plugin)
[![CI](https://github.com/Isotr0py/pillow-jpegxl-plugin/actions/workflows/test.yml/badge.svg)](https://github.com/Isotr0py/pillow-jpegxl-plugin/actions/workflows/test.yml)

Pillow plugin for JPEG-XL, using Rust for bindings.

## Features
- JPEG-XL Plugin for Pillow
- Encoder/Decoder to work with JPEG-XL using safe wrapper
- Support EXIF metadata encoding

## Install via PIP
```
pip install pillow-jxl-plugin
```

## Build from source
Make sure [`Rust`](https://www.rust-lang.org/tools/install) installed, then run:
```
git clone https://github.com/Isotr0py/pillow-jpegxl-plugin
cd pillow-jpegxl-plugin

pip install -e .[dev] -v
```
If you have [`libjxl`](https://github.com/libjxl/libjxl) installed and want to use dynamic link, run:
```
pip install -e .[dev] -v --config-settings=build-args="--features=dynamic"
```

## Development
- Python code is formatted and linted with `ruff`, while Rust code is checked with `cargo fmt` and `cargo clippy` via [pre-commit](https://pre-commit.com/).
- Install the tooling once with `pip install -e .[dev]` and then `pre-commit install`.
- Run the suite manually with `pre-commit run --all-files` before opening a pull request.

## Plugin Usage
Use `import pillow_jxl` to register the plugin in your code.

### Example:
```python
from io import BytesIO

import pillow_jxl
from PIL import Image

# Lossless encode a png image
with Image.open("example.png") as img:
    img.save("example.jxl",lossless=True)

# Encode image with JPEG-Style quality
with Image.open("example.png") as img:
    img.save("example.jxl", quality=98)

# Lossless construct from a jpeg image
with Image.open("example.jpg") as img:
    img.save("example.jxl",lossless=True)

# Decode jxl image
with Image.open("example.jxl") as img:
    display(img)

# Encode/decode jxl image to buffer
buffer = BytesIO()
with Image.open("example.png") as img:
    img.save(buffer, format="JXL")

jxl_bytes = buffer.getvalue()
img = Image.open(BytesIO(jxl_bytes))
display(img)
```

## Wheels status
|    Wheels   | Windows (x86/x64) | Windows (ARM) | MacOS (x64/aarch64) | manylinux (x86/x64/aarch64) | musllinux |
|:-----------:|:-----------------:|:-------------:|:-------------------:|:---------------------------:|:---------:|
| CP3.10 |         ✔         |       ❌       |          ✔          |              ✔              |     ✔     |
| CP3.11 |         ✔         |       ✔       |          ✔          |              ✔              |     ✔     |
| CP3.12 |         ✔         |       ✔       |          ✔          |              ✔              |     ✔     |
| CP3.13 |         ✔         |       ✔       |          ✔          |              ✔              |     ✔     |
|   PyPy3.11  |         ✔         |       ❌       |          ✔          |              ✔              |     ✔     |

## Credits
- [inflation/jpegxl-rs](https://github.com/inflation/jpegxl-rs)

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