Ship the measured Meta Content Seal cohort with auto routing and --vendor override

Full Meta Muse Image support in the invisible-removal path:

- QWEN_ZIMAGE_META_STRENGTH = 0.1: derived by the standard
  worst-boundary-plus-cross-source-spread method over five oracle-bracketed
  generations (data/contentseal/manifest.csv)
- Auto mode: vendor_for_strength routes a file whose only provenance is the
  standalone AI IPTC trainedAlgorithmicMedia tag onto the meta cohort; C2PA
  issuers win first, so Google/OpenAI/Microsoft routing is unchanged. Muse
  WebP outputs place the XMP in a tail chunk, so the scan uses the shared
  chunk-aware metadata.scan_head rather than a plain head read
- Explicit override: --vendor on invisible/all/batch and
  InvisibleOptions.vendor name the cohort on stripped files; naming a cohort
  asserts the watermark is present, so the no-signal gate treats it like
  --force at both the CLI and API seams
- sdxl-zimage has no measured Meta rung: an explicit meta vendor falls to
  the conservative unknown 0.25 rather than inventing one
- identify emits a Content Seal caveat pointing at the removal path
- The legacy visible 'Imagined with AI' mark stays unregistered: a dedicated
  sample hunt (newsroom mockups, community posts, press screenshots, dead
  imagine.meta.com, broken Wayback captures) found no pixel-verifiable
  capture, and the registry rule forbids encoding a corner without one.
  erase --region remains its removal path; outcome recorded in the landscape

Co-Authored-By: Claude Fable 4.5 <noreply@anthropic.com>
This commit is contained in:
Victor Kuznetsov
2026-08-26 22:59:23 -07:00
co-authored by Claude Fable 4.5
parent a1811b6221
commit ab528ec0e8
12 changed files with 260 additions and 33 deletions
+17
View File
@@ -387,6 +387,23 @@ detected. Use `--force` when you know the image should be processed:
remove-ai-watermarks invisible image.png -o clean.png --force
```
### Choose a strength cohort
`--vendor` selects the cohort the default strength resolves from. `auto`
(the default) derives it from provenance: the C2PA issuer for
OpenAI/Google/Microsoft, and the standalone AI IPTC tag for Meta Content Seal
(Muse output carries no C2PA; the tag is a standard code, so C2PA evidence
always wins first). An explicit value both names the cohort for stripped files
and implies the scrub runs -- naming the cohort asserts the pixel watermark is
present -- exactly like `--force` plus a measured floor:
```bash
remove-ai-watermarks invisible muse_output.webp -o clean.png --vendor meta
```
The same option exists on `all` and `batch`, and as
`InvisibleOptions(vendor="meta")` in the Python API.
### Choose a pipeline
| Pipeline | When to use it |