ghostimg

ghostimg

Remove all forms of AI-generator identification from images — from obvious metadata to statistical pixel fingerprints.

What it removes

Dependencies

Only one dependency: golang.org/x/image — the official Go extended standard library maintained by the Go team. It provides the WEBP decoder. No third-party packages.

Build

git clone https://github.com/10yearsahead/ghostimg
cd ghostimg
go mod tidy
go build

Usage

# Single file — flags accepted in any order
./ghostimg photo.png
./ghostimg photo.png -v
./ghostimg -v photo.png

# Custom output path
./ghostimg -o result.png photo.png

# Process entire directory
./ghostimg -dir ./photos -o ./photos_clean

# Skip pixel perturbation layer
./ghostimg -no-pixel photo.jpg

Notes

• WEBP output is saved as PNG — Go's stdlib has no WEBP encoder, and the format conversion itself breaks WEBP-specific frequency fingerprints
• Pixel perturbation uses a fixed seed for reproducibility; replace with time.Now().UnixNano() in internal/perturb/perturb.go for different output on each run
• C2PA manifests with cryptographic signatures are fully removed, not merely invalidated