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JamesandClaude Opus 4.7
010c4f5576
Address Miguel's review on #612. - Normalization std was (1, 1, 1) — that's the base u2net session, not u2net_human_seg. Switch to ImageNet (0.229, 0.224, 0.225) to match rembg's U2netHumanSegSession reference. Add a parity test pinning the exact MEAN/STD values. - waitForExit treated `code === null` as success, but per Node child_process docs that's the signal-killed case — a SIGTERM'd ffmpeg encoder was reporting success with a partial output. Switch to (code, signal) and reject with the signal in the error message. Add four signal-handling tests (clean exit, signal-killed, non-zero code, SIGKILL). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>