ECW decoding uses ecw2tiff 0.2.0 decoder modules. Experimental ECW v2 encoding extracts PR #4's encoder, forward transform and entropy encoder/model. Copyright (c) 2026 Itamar Weiss. MIT License; see LICENSE. Decoder revision: b50288e43fa1cae835e58ecb9e9fa9f7a49ed97f Encoder revision: 3e6058ee6516ecae2539928ef0323388dff4433f ImgConv adds owned-memory I/O, resource limits and a safe-Rust browser bridge; rate search is omitted. No official ECW SDK, older PR decoder, TIFF writer, CLI, Python binding or application Cargo dependencies are compiled. Rust standard-library notices: RUST-COPYRIGHT.html, RUST-LICENSE-MIT and RUST-LICENSE-APACHE.