Colorizer round6: region pilot step 500

experiments/region-coherence-20260928/SHA256SUMS.json

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experiments/region-coherence-20260928/control/step_00500/README.md

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+# Experimental semantic colorizer
+
+Head: palette. Parameters: 3994676.
+
+Not approved for production. Requires semantic_model.py; incompatible with the old U-Net loader. Input is Lab lightness normalized to [-1,1]; output is Lab ab. See the run protocol, provenance, selection and visual comparisons. Predictions are plausible colors, not recovered historical truth.

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experiments/region-coherence-20260928/region/step_00500/README.md

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+# Experimental semantic colorizer
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+Head: palette. Parameters: 3994676.
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+Not approved for production. Requires semantic_model.py; incompatible with the old U-Net loader. Input is Lab lightness normalized to [-1,1]; output is Lab ab. See the run protocol, provenance, selection and visual comparisons. Predictions are plausible colors, not recovered historical truth.

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