raw2fits

A Python package to convert camera raw images to astronomical fits files.

Installation

pip install raw2fits

Usage

To convert a raw image to a fits file.

from raw2fits.image import Image
img = Image(path='path/to/raw/image', debayer_method="VNG")
img.save_fits(image_type="LIGHT", path='path/to/save/fits/image')

where debayer_method can be one of the following: "VNG", "Bilinear". We recommend using "VNG" for better results, this is also the default method used by PixInsight and this package. raw2fits supports 16-bit VNG debayer method, which is not supported by OpenCV yet.

Comparsion between different debayer methods

The following images are the result of converting a raw image to a fits file using different debayer methods.

Debayer Method	Image
Bilinear
VNG
VNG (by Pixinsight)

---

Debayer Method	Image
Bilinear
VNG
VNG (by Pixinsight)

---

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT

Acknowledgements

This extraction of the bayer image is based on the rawpy.