FITS and XISF image viewer, converter and indexer. It is intended primarily for viewing astro photos and images. It supports the following formats:
FITS 8, 16 bit integer and 32 bit float
XISF 8, 16 bit integer and 32 bit float
JPEG and PNG images
CR2 NEF DNG RAW images
Features:
Using same stretch function as PixInsight
OpenGL accelerated drawing
Index and search FITS XISF header data
Quick mark images and then copy/move marked files
Convert FITS <-> XISF
Convert FITS/XISF -> JPEG/PNG
Image statistics mean, media, min, max
Support for WCS
Thumbnails
You can download source code or pre-build binaries for Windows and MacOS here On Linux you can install flatpak from flathub.org by running this command flatpak install flathub space.nouspiro.tenmon