# Install perceptualdiff with Homebrew, apt, dnf

Perceptual image comparison tool. Version 2.1 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:perceptualdiff
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install perceptualdiff
```

  Evidence: local Homebrew formula metadata

### Linux

- Debian apt (92%):

```sh
sudo apt install perceptualdiff
```

  Evidence: Debian stable package indexes: perceptualdiff from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install PerceptualDiff
```

  Evidence: Fedora Rawhide package metadata: PerceptualDiff from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

## Package facts

- **Package key:** brew:perceptualdiff
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/perceptualdiff>
- **Version:** 2.1
- **Source summary:** Perceptual image comparison tool
- **Homepage:** <https://pdiff.sourceforge.net/>
- **Repository:** <https://github.com/myint/perceptualdiff>
- **Upstream docs:** <https://pdiff.sourceforge.net/>
- **License:** GPL-2.0-or-later
- **Source archive:** <https://github.com/myint/perceptualdiff/archive/refs/tags/v2.1.tar.gz>
- **Generated:** 2026-07-08T18:08:21+00:00

## Executables

- perceptualdiff (cli)
- perceptualdiff (alias)

## Dependencies

- freeimage

## Build dependencies

- cmake

## Install behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 2.1
- Local data: ok
- Upstream repository: https://github.com/myint/perceptualdiff
- Upstream latest detected: v2.1 (current)
- info: No package-manager update timestamp was available.

## Security Notes

broad file, network, media, or database tool signal.

- **Geiger risk:** blue / medium
- broad file, network, media, or database tool signal

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** perceptualdiff
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** yes
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## Other Package-Manager Records

- Debian apt - perceptualdiff - 2.1-7: normalized package name match | Debian stable package indexes: perceptualdiff from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | perceptual image comparison tool | https://github.com/myint/perceptualdiff
- Ubuntu apt - perceptualdiff - 2.1-7: normalized package name match | Ubuntu 24.04 LTS package indexes: perceptualdiff from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | perceptual image comparison tool | https://github.com/myint/perceptualdiff
- dnf - PerceptualDiff - 2.1-16.fc45: normalized package name match | Fedora Rawhide package metadata: PerceptualDiff from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | An image comparison utility | https://github.com/myint/perceptualdiff


## Related links

- [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [cmake](https://www.automicvault.com/pkg/brew/cmake/) - Build dependency declared by Homebrew.
- [dssim](https://www.automicvault.com/pkg/brew/dssim/) - Shares av.db curated category or tags: cli, image-comparison, image-processing, media.
- [babl](https://www.automicvault.com/pkg/brew/babl/) - Shares av.db curated category or tags: cli, image-processing, media.
- [caire](https://www.automicvault.com/pkg/brew/caire/) - Shares av.db curated category or tags: cli, image-processing, media.
- [camellia](https://www.automicvault.com/pkg/brew/camellia/) - Shares av.db curated category or tags: cli, image-processing, media.
- [chafa](https://www.automicvault.com/pkg/brew/chafa/) - Shares av.db curated category or tags: cli, image-processing, media.
- [epsilon](https://www.automicvault.com/pkg/brew/epsilon/) - Shares av.db curated category or tags: cli, image-processing, media.
- [exact-image](https://www.automicvault.com/pkg/brew/exact-image/) - Shares av.db curated category or tags: cli, image-processing, media.
- [exiftran](https://www.automicvault.com/pkg/brew/exiftran/) - Shares av.db curated category or tags: cli, image-processing, media.

## Combined YAML source

View the package source record on GitHub. [combined/perceptualdiff.yml](https://github.com/automic-vault/db/blob/main/combined/perceptualdiff.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph