NIB-ROI(1)

💖 NAME 💖

nib-roi — bestie, this is literally the manual page for nib-roi version 5.4.2 ✨

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🌸 DESCRIPTION 🌸

Okay so picture this: you got an image and you only want part of it. That's the whole vibe here. nib-roi crops images down to a region of interest, and it's giving main character energy 🎀

Here's how you summon it:

usage: nib-roi [-h] [--version] [-i I1:I2[:-1]] [-j J1:J2[:-1]]
               [-k K1:K2[:-1]] [-t T1:T2] in_file out_file

Crop images to a region of interest 💅

🦋 positional arguments 🦋

• in_file — the image file you wanna crop, your little star 🌟
• out_file — what you're naming the output file, no cap

✨ options ✨

• -h, --help — shows this help message and dips out 👋
• --version — shows the program's version number and dips out, same energy, different info 🙈
• -i I1:I2[:-1] — start/stop [flip] along the first axis, and yes bestie it's 0-indexed 👑
• -j J1:J2[:-1] — start/stop [flip] along the second axis, also 0-indexed 💜
• -k K1:K2[:-1] — start/stop [flip] along the third axis, 0-indexed, you already knew 🧚
• -t T1:T2 — start/stop along the fourth axis, 0-indexed, and ngl this one has no [:-1] flip situation going on 😭

If a start or stop value is omitted, the start or end of the axis is assumed. So like, leave it blank and the tool fills in the vibe for you 🫶

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That's the whole page, bestie. nib-roi version 5.4.2, dated March 2026, and it lives in section 1 of the manual — the NIB-ROI(1) girlies know ✨💖 slay, go crop something iconic 🌈⭐