codeonym-orgcodeonym-org/codeonym-arch-design/skills/photo-editing/SKILL.md

photo-editing

Skill0 starsChanged 48 days agoMITView on GitHub

Photo development and retouching on codeonym's Arch workstation with darktable 5.6 (RAW/JPEG development, color grading, batch styles), GIMP 3.2 (retouching, compositing), Upscayl (AI upscaling) and exiftool (metadata). Use when the user wants to edit, color-grade, batch-process, upscale, resize for web, or strip location/metadata from photos, or wants a consistent look across a photo set (portfolio, product shots, headshots).

2 other projects use a version of this, 1 of them edited.

Adopted by

Most recently taken up by

fal-ai-community/skillstheir own version, first seen Nov 8, 2026
codeonym-oss/design-skillsedited, first seen Oct 20, 2026

Other versions2 projects use a version of this.
Word for word · 0
None found.
Edited · 1
codeonym-oss/design-skills★ 035% same
Wrote their own version · 1
fal-ai-community/skills★ 265same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository9 other files it gives its agents.
- 3d-modelingSkill
- design-doctorSkill
- graphic-designSkill
- illustrationSkill
- print-layoutSkill
- screen-recordingSkill
- typographySkill
- ui-designSkill
- video-editingSkill

The file

We split this skill into the rules it gives an agent

1 rule. About 0 are common, 0 are distinctive, and 1 is very specific to this project.

≈0
Common · estimate
Many files like this have a rule of this kind.
≈0
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.

Common
Distinctive
Very specific

Very specific:
Never edit originals: darktable stores edits in .xmp sidecars.
line 36

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.

Files

SKILL.md

Photo editing (darktable · GIMP · Upscayl)

Toolkit on this machine

Tool	Use it for	Launch / CLI
darktable 5.6	Non-destructive development of RAW and JPEG: exposure, color, grading, lens fixes, batch looks	`darktable` · headless `darktable-cli in.jpg [style.xmp] out.jpg`
GIMP 3.2 + Resynthesizer / G'MIC	Pixel retouching: remove objects, skin/spot healing, compositing	`gimp`
Upscayl	AI 2×/4× upscaling of small or old photos	`upscayl`
exiftool	Read/strip metadata (GPS!), rename by date	`/usr/bin/perl /usr/bin/vendor_perl/exiftool` — plain `exiftool` breaks here because a Homebrew perl shadows the system one
ImageMagick	Resize, watermark, contact sheets	`magick`

Scripts

Script	What it does
`check.sh`	Verifies darktable, darktable-cli, GIMP, Upscayl, exiftool
`batch-develop.sh <style.dtstyle\|-> <photos…>`	Headless darktable export of many photos, optionally applying a saved style, into `export/`
`web-ready.sh <photos…> [--max 2048] [--watermark "© codeonym"]`	Resize, sharpen lightly, strip metadata, optional watermark → `web/`
`strip-metadata.sh <photos…>`	Removes all metadata (GPS, camera serial) in place, keeps a backup `*_original` unless `--no-backup`
`contact-sheet.sh <photos…>`	One JPEG grid of thumbnails to review/share a set

Guides

references/darktable-workflow.md — the scene-referred workflow in darktable 5, module order, styles for consistent sets.
references/retouching.md — GIMP retouch recipes (object removal, headshot cleanup, sky replacement).

Rules of thumb

Edit in darktable first (global look), then GIMP only for local pixel fixes — round-trip via export as TIFF 16-bit.
Never edit originals: darktable stores edits in .xmp sidecars; exports go to export/.
Strip metadata before publishing anything online (strip-metadata.sh or web-ready.sh).
For a consistent set, grade one hero photo, save it as a darktable style, apply to the rest (batch-develop.sh).

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