wai-rs: jpegai e2e integration test — synthesis on the real reference latent #2
2026-07-08
wai-rs: jpegai e2e integration test — synthesis on the real reference latent
First end-to-end integration check: run decode_y on the REAL test256.bin latent (checkpoint yhat_y/y_lsbs) and compare to the reference synthesis pixels (ypix), rather than a synthetic latent vs the ONNX. Confirms the synthesis stage on real pipeline data at 58.85 dB PSNR (max|Δ|=0.6, the 16-bit PTQ), and pins the pipeline wiring: synthesis consumes the post-LSBS latent (y_lsbs), not the pre-LSBS yhat_y. Feature-gated on the checkpoint fixture + weights. Co-Authored-By: Claude Opus 4.8 <[email protected]>