Standardize video sampling and frame indexing so interval instructions and mask frames stay aligned with a valid key/index scheme.
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sample_ids.sample_ids; the max index must be < total_frames."{start}->{end}" (integers only). Decide (and document) whether end is inclusive or exclusive, and be consistent.import cv2
VIDEO_PATH = "<path/to/video>"
cap=cv2.VideoCapture(VIDEO_PATH)
n=int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
fps=cap.get(cv2.CAP_PROP_FPS)
step=10 # example
sample_ids=list(range(0, n, step))
if sample_ids[-1] != n-1:
sample_ids.append(n-1)
# Generate all downstream outputs only for sample_ids
sample_ids strictly increasing, all < total frame count.sample_ids[-1] (or matches your documented sampling policy).start->end, no extra text.No reviews yet. Tell others what you thought.
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Perform various data analysis on SEC 13-F and obtain some insights of fund activities such as number of holdings, AUM, and change of holdings between two quarters.
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AC branch pi-model power flow equations (P/Q and |S|) with transformer tap ratio and phase shift, matching `acopf-math-model.md` and MATPOWER branch fields. Use when computing branch flows in either direction, aggregating bus injections for nodal balance, checking MVA (rateA) limits, computing branch loading %, or debugging sign/units issues in AC power flow.
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Redact text from PDF documents for blind review anonymization
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Use when checking simplified ADA-derived plan-view bathroom accessibility constraints such as turning space, door clear width, toilet centerline, grab bars, and lavatory knee/toe clearance.
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Analyze failed GitHub Action jobs for a pull request.
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Use when extracting plan-view architectural geometry from DXF files with semantic CAD layers, especially when outputs must normalize rooms, doors, fixtures, clearances, and grab bars into machine-checkable JSON.
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