Colorizer round6: dense evaluation 5000

.gitattributes

@@ -63,3 +63,4 @@ experiments/round6-20260928/dense_review_validation_grid.jpg filter=lfs diff=lfs
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 experiments/round6-20260928/dense_3000.jpg filter=lfs diff=lfs merge=lfs -text
 experiments/round6-20260928/dense_4000.jpg filter=lfs diff=lfs merge=lfs -text
+experiments/round6-20260928/dense_5000.jpg filter=lfs diff=lfs merge=lfs -text

experiments/round6-20260928/SHA256SUMS.json

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experiments/round6-20260928/dense/step_05000/README.md

@@ -0,0 +1,5 @@
+# Experimental semantic colorizer
+
+Head: dense. Parameters: 3708978.
+
+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.

experiments/round6-20260928/dense/step_05000/config.json

@@ -0,0 +1,7 @@
+{
+  "architecture": "SemanticColorizer",
+  "head": "dense",
+  "width": 128,
+  "queries": 16,
+  "format_version": 1
+}

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experiments/round6-20260928/history.json

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         "raw_patch_excess": 1.2391514939566453
       }
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