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AstroSharp 0.4.7

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@damienstuart damienstuart released this 20 Oct 19:49
· 15 commits to main since this release
v0.4.7
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First public release of astrosharp-rs, a Rust port of AstroSharp by Mark Lowry (Deep Sky Detail). It sharpens and denoises stretched (non-linear) astrophotography images with AstroSharp's trained models: PSF (sharpen), AstroClean (denoise) and Hybrid (both). It's meant as a final touch-up after stretching, for example in Siril.

This is a pre-release. Feedback is welcome, especially from Windows on Intel/AMD PCs: the x64 build has only been tested under emulation so far.

Downloads

File For
AstroSharp-0.4.7-macos-arm64.zip macOS 11 or later on Apple Silicon
AstroSharp-0.4.7-setup.exe Windows 10 and 11, x64 or ARM64 (it installs the native build)
SHA256SUMS Checksums for both

Neither download is signed with a paid certificate, so expect a warning the first time:

  • macOS: unzip and move AstroSharp.app to Applications. The first time you open it, macOS says it can't check the app for malware. Go to System Settings > Privacy & Security and click Open Anyway; this is only needed once. The command-line tool is at AstroSharp.app/Contents/MacOS/astrosharp-cli.
  • Windows: if SmartScreen shows "Windows protected your PC", click More info, then Run anyway.
    • The installer installs for your user only, with no administrator rights needed, and adds a Start menu shortcut.
    • It offers a desktop shortcut and adding astrosharp-cli to your PATH.
  • Linux: build and install from source with make install-linux (see the README).

What's in it

  • Models: the same results as the original R app, matching its output to within floating-point rounding. A seamless Hybrid mode avoids the R app's chunk seams.
  • Speed: much faster than the R app. A 24 MP Hybrid run takes about 2 s on an Apple M5 Max.
  • Files: opens TIFF and FITS. Saves TIFF, FITS, PNG and JPEG, and keeps FITS headers, including plate solutions.
  • GUI:
    • Live update; changing only Aggressiveness re-blends in a fraction of a second.
    • A preview region, a before/after compare divider, and Reset image / Reset all.
    • The cursor's RA/Dec for plate-solved FITS files.
  • CLI: for scripting, for example from Siril: astrosharp-cli in.fit out.fit --model hybrid --psf 3.

Credit

AstroSharp, including the trained models built into these downloads, was created by Mark Lowry (Deep Sky Detail). He kindly agreed to this open-source port. If you find it useful, consider buying him a coffee.

Licensed under the MIT license.

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