Add element_proposal: propose a clean element list from raw pixels#449
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Set-of-Marks/observation/grounding assume you already have element boxes, but a game/custom-drawn app/remote desktop has no accessibility tree. propose_elements builds the top-of-funnel list from pixels: widget blobs (Canny+morphology+connected_boxes) + text regions, fused via element_parse (ocr>icon priority is the drop-widget-that-is-really-text cross-check), reading-ordered and tagged text/widget. tag_kinds is the pure labeller.
Up to standards ✅🟢 Issues
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| Metric | Results |
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| Complexity | 25 |
| Duplication | 0 |
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Summary
Seventh and final feature of the ROUND-15 perception lane (the top-of-funnel UIED-lite). Set-of-Marks,
observationand the grounding helpers all assume you already have element boxes — but a game, a custom-drawn app or a remote desktop has no accessibility tree.utils/element_proposal/:propose_elements(detect widget boxes = Canny + morphological-close +connected_boxes; text boxes =text_regions.find_text_regions; fuse viaelement_parse.fuse_elements— itsocr > iconpriority is the "drop widget-that-is-really-text" cross-check;reading_order; tagtext/widget),tag_kinds(pure labeller). Single screen grab shared across both detectors. cv2 imported lazily.__all__;AC_propose_elements(device) +AC_tag_kinds(pure) executor commands; matching read-onlyac_*MCP tools; Script Builder under Image.v220_features_doc.rst+WHATS_NEW.md.Test
test/unit_test/headless/test_element_proposal_batch.py— puretag_kinds(source labelling, unknown→widget, empty); cv2propose_elementsfinds ≥2 drawn widgets with sequential reading-order indices and no full-frame box, blank screen → empty; wiring + facade run cv2-free. All 8 green;ruff+bandit+radonclean; no float==; package stays Qt-free.