nature-image2ppt

name

nature-image2ppt

description

Convert slide images, screenshots, scanned PDFs, and image-only PPT/PPTX files into high-fidelity object-level editable PowerPoint, including semantic-region mixed reconstruction, measured flowcharts and knowledge graphs, native circle nodes and connectors, single-object thin and filled arrows, speaker-note preservation, and rendered QA. Use for 图片转可编辑PPT、截图还原PPT、扫描PDF恢复、图片型PPTX转换、流程图/知识图谱/复合图形/箭头重建; not for authoring a new deck from notes.

Nature Image2PPT

Use this directory as the complete runtime. Run deterministic actions only through:

python <image2ppt-root>/cli/image2ppt/cli.py <command> ...

For this project-local Windows deployment, substitute <image2ppt-root>/.venv/Scripts/python.exe for every python command below when that interpreter exists. It contains the pinned runtime dependencies and avoids depending on the user's global Python environment.

Do not discover or invoke another Skill, CLI, Prompt, Schema, module, or state machine.

Read the local contracts

Before a run, read:

• references/workflow.md
• references/runtime-dependencies.md
• references/ocr-text-hints-contract.md

Before reconstructing a page, also read:

• references/page-decision-tree.md
• references/manifest-schema.md
• references/region-decomposition.md
• references/object-routing.md
• references/manifest-arrow-extension.md
• references/assets-provenance-contract.md

Before accepting or delivering output, read references/qa-contract.md.

Preserve the single source of truth

• Treat page_jobs.json as the only page-state source.
• Treat each pages/page_NNN/manifest.json as the only page-content source.
• Treat deck_manifest.json as the final-assembly source.
• Use only prepare, run next/dispatch/record/reset/hints/finalize, and the page commands in the local CLI for stateful lifecycle operations.
• Keep semantic-region evidence in manifest.json.image2ppt_region_decomposition.
• Never create a second job file, reconstruction plan, OCR normalizer, page controller, packager, or finalize path.
• Let supplemental QA report failures; never let it mutate lifecycle state.

Preserve pre-migration behavior

• Treat self-containment as a path/import/entrypoint migration, not a redesign of reconstruction behavior.
• Generate each worker Prompt from the complete local base layer plus the preserved Image2PPT profile layer. Do not condense, reinterpret, or replace either layer.
• Prefer the previously validated visual strategy when several routes satisfy the contracts. Keep simple measured objects native and retain bounded complex assets wherever a native redraw would reduce fidelity.
• Never re-author an accepted baseline page merely to prove runtime independence.

Run the workflow

1. Preflight and OCR choice

python <image2ppt-root>/cli/image2ppt/cli.py doctor --json

Use Baidu AI Studio PADDLE_OCR_TOKEN when configured. If it is absent, tell the user once that the local builtin-ink fallback measures text geometry but does not recognize characters; offer the configuration path in references/ocr-text-hints-contract.md. Respect an offline-only choice.

2. Prepare one run

python <image2ppt-root>/cli/image2ppt/cli.py prepare <input...> \
  --out-root output/image2ppt --image-backend builtin-imagegen

Use --no-text-hints only when OCR processing is intentionally disabled. Regenerate hints without creating a new run when needed:

python <image2ppt-root>/cli/image2ppt/cli.py run hints <run-dir>

3. Advance and claim pages

python <image2ppt-root>/cli/image2ppt/cli.py run next <run-dir> --json
python <image2ppt-root>/scripts/build_page_worker_prompt.py \
  <run-dir> --page <page-id> --out <absolute-page-dir>/worker-prompt.md
python <image2ppt-root>/cli/image2ppt/cli.py run dispatch \
  <run-dir> --page <page-id> --agent-id <id> --prompt-file <absolute-prompt>

For exactly one page, claim it with --local and reconstruct it in the current agent. For multiple pages, dispatch independent page workers up to the capacity in page_jobs.json. Do not reset a live worker merely because it is slow.

4. Reconstruct and gate each page

Plan a structured page as 3–5 semantic regions and route each region independently. Use measured compound diagrams: measure every node, relation, and protected anchor. Keep measurable circles, cards, straight/dashed relations, and simple connectors native. Use bounded transparent assets only for complex local subparts.

Represent a thin arrow as one connector with its arrowhead on the same object. Represent a filled arrow as one Arrow AutoShape, with centered label text inside the same object. Never construct an ordinary arrow from a line plus triangle and never flatten a whole knowledge graph into one image.

The worker Prompt performs the deterministic sequence. Its final gates are:

python <image2ppt-root>/cli/image2ppt/cli.py page build <page-dir>
python <image2ppt-root>/scripts/run_image2ppt_qa.py <page-dir>
# inspect source.png against render/rendered.png, repair, then:
python <image2ppt-root>/scripts/run_image2ppt_qa.py <page-dir> \
  --visual-review-status reviewed \
  --visual-review-notes "<specific observations checked>"
python <image2ppt-root>/cli/image2ppt/cli.py page contact-sheet <page-dir>

Record only after standard validation and the Image2PPT region, arrow, and rendered gates pass:

python <image2ppt-root>/cli/image2ppt/cli.py run record \
  <run-dir> --page <page-id> --agent-id <id>

Use the same run reset → dispatch → record lifecycle to repair rejected pages.

5. Finalize and revalidate the rebuilt deck

When run next reports finalize, run:

python <image2ppt-root>/cli/image2ppt/cli.py run finalize <run-dir>
python <image2ppt-root>/scripts/run_final_image2ppt_qa.py <run-dir>
# inspect every rendered slide against its source, repair manifests if needed, then:
python <image2ppt-root>/scripts/run_final_image2ppt_qa.py <run-dir> \
  --visual-review-status reviewed \
  --visual-review-notes "<specific checks covering every slide>"

Finalize rebuilds from page manifests, preserves source speaker notes, validates the package, and writes the output recorded by deck_manifest.json. Final QA reapplies manifest arrows, verifies arrow atomicity and compound structure, renders every slide, checks speaker-note integrity, and writes final/image2ppt_qa.json.

Deliver

Return the final PPTX path, standard final validation, and final/image2ppt_qa.json. Report which complex visuals remain replaceable bitmap assets. Do not call the deck complete while any page/final gate is pending or failed.