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Run3 image preprocessing

Skill cxcscmu/SkillLearnBench/skills/b3-teacher-feedback-gemini-3.1-flash-lite-preview/video-object-counting/run3_image_preprocessing

Convert images to grayscale in-place using OpenCV.From its SKILL.md

Install
npx -y skills add cxcscmu/SkillLearnBench --skill run3_image_preprocessing

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SKILL.md

0.4 KB, 84 tokens by cl100k_base, as published. Nobody here has run it

To convert an image to grayscale and overwrite the original file, use a Python script with OpenCV:

import cv2
import glob

files = sorted(glob.glob('/root/keyframes_*.png'))
for file_path in files:
    img = cv2.imread(file_path)
    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    cv2.imwrite(file_path, gray)

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

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