Very tall webtoon pages were squashed by the fixed longest-edge downscale,
so OCR was garbage. The vision client now slices to the model's pixel
budget at native resolution and assembles one result:
- plan_slices: native-resolution bands sized to max_pixels (portrait OR
landscape), only when height/width > tall_aspect_threshold; min_slice_
height guards pathologically wide pages (reduce width); max_slices caps
the count (coarser fallback). Normal pages still take one combined call.
- Two-pass, OCR-first: Pass A OCRs each band (near-native), merge_ocr
stitches them with seam-scoped fuzzy dedup (keep the longer transcript,
preserve order/kind, don't collapse non-adjacent repeats); Pass B feeds
the whole downscaled image + the merged OCR text to get tags/scene/safety
grounded in the real dialogue. Only OCR is merged.
- Config: replace max_image_dim with max_pixels / min_slice_height /
slice_overlap / tall_aspect_threshold / max_slices (+ env_f64); bump
job_timeout default 180->600 (N sequential slice calls per page); raise
MAX_OCR_PIECES 60->200. New prompts/schemas: OCR_PROMPT/ocr_json_schema,
GROUNDING_PROMPT/grounding_json_schema.
Tests: plan_slices (single/portrait/landscape/pathological-wide/cap +
coverage/overlap), merge_ocr (seam dedup, keep-longer, non-adjacent
repeats, order), render_whole/render_slice, the new request builders, and
updated config defaults/env.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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