Show HN: Sarpro – Get Sentinel‑1 GRD from NASA into → GeoTIFF/JPEG Fast (Rust)

2 danielVi 0 9/1/2025, 1:28:20 PM github.com ↗

SARPRO is a fast Rust toolset for turning Sentinel‑1 GRD products into GeoTIFFs and high‑quality synthetic‑RGB JPEGs, with CLI, GUI, and a typed Rust API. The latest release focuses on cloud‑friendly remote I/O with proper authentication and robust batching.

What’s new in 0.3.2:

Authenticated CDSE/ASF downloads (CLI) to fetch GRD .SAFE.zip over OAuth2 (CDSE) or Earthdata cookies/netrc (ASF) and process directly.

Stream or materialize: Reads via GDAL VSICURL/VSIZIP for streaming, or materialize into a cache with progress bars and ASF resume support.

Non‑auth remote SAFE: Process unpacked SAFE over HTTP(S) behind a Range‑capable server (e.g., nginx, Python RangeHTTPServer)

Quality & speed: Auto‑CRS (--target-crs auto), CLAHE autoscale, synRGB modes; 400–500MP → 2048px typically completes in ~1–2s on a modern laptop; native full‑res warps remain tens of seconds.

Links: - Repo: (https://github.com/bogwi/sarpro) - Docs: (https://docs.rs/sarpro) - Previous HN: [Sarpro – Ultrafast Sentinel‑1 GRD → GeoTIFF/JPEG, SynRGB, Clahe, Auto‑CRS (Rust)](https://news.ycombinator.com/item?id=44961747)

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