macOS
brew install blockhashlocal Homebrew formula metadata
brew / Rang 6200
Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für blockhash in AI-Agent-Workflows.
Installation
brew install blockhashlocal Homebrew formula metadata
nix profile install nixpkgs#blockhashnixpkgs package indexes · pkgs/by-name/bl/blockhash/package.nix · Quelle: api.github.com
Überblick
Perceptual image hash calculation tool
Verlauf
blockhash is a small Commons Machinery command-line tool for computing perceptual image hashes. It packages the block mean value perceptual-hashing algorithm into a Unix-style utility that can hash one or more images from the shell.
The official README says blockhash is based on the algorithm described in 'Block Mean Value Based Image Perceptual Hashing' by Bian Yang, Fan Gu, and Xiamu Niu. GitHub metadata dates the repository to September 2014, and the README copyright line names Commons Machinery in 2014.
The release history shows v0.1 in December 2014, follow-up 0.2 releases in January 2017, v0.3 in November 2017, and later maintenance releases through v0.3.3 in January 2023.
blockhash has narrow but durable package adoption. The input metadata records Homebrew and Nix packages, which is enough for scripts and reproducible media-processing environments to depend on the CLI without building the ImageMagick-backed source manually.
The README documents a direct CLI workflow: run `blockhash` with a list of images to calculate hashes, or `blockhash --help` for options. Building from source requires ImageMagick's MagickWand development library and the waf build script.
blockhash matters as a compact packaged implementation of perceptual hashing, useful for duplicate detection, image comparison, media archives, and content pipelines where cryptographic hashes are too brittle because visually similar images may have different bytes.
Sicherheitslage
broad file, network, media, or database tool signal.
blue Risiko · mittel Konfidenz · tool
Prüfe vor unbeaufsichtigter Agent-Nutzung, ob das Tool Klartext-Credentials liest, Remote-Zustand schreibt, Artefakte veröffentlicht oder Plugins ausführt.
Executables
| Befehl | Art | Sichtbarkeit | Hinweis |
|---|---|---|---|
blockhash | Executable | indexiertes Executable | Aus dem lokalen Executable-Index erkannt. |
Aktualität
Diese Signale trennen das Alter der Seitengenerierung, Aktivität des Paketmanagers und Upstream-Release-Vergleich. Versionsrückstand wird nur gemeldet, wenn eine Evidenz-URL und vergleichbare Versionen vorhanden sind.
Installationsmetadaten
| Paketschlüssel | brew:blockhash |
|---|---|
| Version | 0.3.3 |
| Paketmanager | Homebrew |
| Homepage | https://github.com/commonsmachinery/blockhash |
| Repository | https://github.com/commonsmachinery/blockhash |
| Zuletzt aktualisiert | 2026-07-06T11:06:08Z |
| Pulse | updated |
| Bottle | nicht erfasst |
| Dienst | keiner deklariert |
Source-Datenbank-Treffer
Treffer stammen aus externen Paketmanager-Indizes und bleiben von lokalen Automic-Vault-Paketlinks getrennt.
blockhash
nix profile install nixpkgs#blockhashQuellspur
Diese Seite wird von av-web aus dem privaten Paket-SQLite-Artefakt bereitgestellt, das scripts/generate-pkg-sqlite.py erstellt.
View the package source record on GitHub.