Show HN: I created a RAW to HDRI stacker in (mostly) Common Lisp

Category: cli-tool

Tags: hdr-imaging, common-lisp, raw-photography

Score: 6.8/10 (Innovation: 6, Technical: 8, Documentation: 7, Utility: 6)

rawtohdri is a multi-threaded Common Lisp tool that converts bracketed RAW images into HDR OpenEXR files with high speed and memory efficiency. Its innovative use of thread-parallel decoding, SIMD-optimized stacking, and a minimal custom EXR writer makes it a notable performer for HDR imaging workflows, particularly interesting for its revival and performance gains over the Python predecessor.

Target audience: photographers, 3d artists, vfx artists

Repository: https://github.com/IBL-tools/rawtohdri · Common Lisp · MIT · 3 stars

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