macOS
brew install ocradlocal Homebrew formula metadata
sudo port install ocradMacPorts ports tree · graphics/ocrad/Portfile · ソース: api.github.com
brew
ocrad のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。
インストール
brew install ocradlocal Homebrew formula metadata
sudo port install ocradMacPorts ports tree · graphics/ocrad/Portfile · ソース: api.github.com
sudo apt install libocrad-devDebian stable package indexes · libocrad-dev · ソース: deb.debian.org
sudo dnf install ocradFedora Rawhide package metadata · ocrad · ソース: dl.fedoraproject.org
nix profile install nixpkgs#ocradnixpkgs package indexes · pkgs/by-name/oc/ocrad/package.nix · ソース: api.github.com
sudo pacman -S ocradArch Linux sync databases · ocrad · ソース: geo.mirror.pkgbuild.com
sudo zypper install ocradopenSUSE Tumbleweed package metadata · ocrad · ソース: download.opensuse.org
概要
Optical character recognition (OCR) program
履歴
GNU Ocrad is a command-line OCR program and C++ library that recognizes text from PNG and PNM-family images using feature extraction rather than a trained-shape database. It produces byte or UTF-8 text and includes layout analysis for columns and text blocks.
The GNU Ocrad manual carries copyright years 2003-2024 for Antonio Diaz Diaz, and the Free Software Directory identifies it as a GNU package. GNU’s FTP archive shows public release tarballs for the 0.14 through 0.17 series in 2006 and 2007, while the manual documents version 0.29 dated 18 January 2024.
The manual characterizes Ocrad as mainly a research project with ad hoc algorithms that may change as the author gains OCR understanding. That framing explains both the project’s small scope and its historical importance: it is a free-software OCR engine built around explicit image-processing and character-recognition code, not a wrapper around a larger OCR system.
Ocrad entered package repositories as a small GNU utility and library for OCR workflows before Tesseract dominated most open-source OCR packaging. Homebrew, Debian/Ubuntu, Fedora, MacPorts, Nix, Arch, and openSUSE-family metadata list packages for it or its development library, keeping it available for scripts and programs that need a lightweight OCR backend.
Users invoke `ocrad` on PNG, PBM, PGM, or PPM images, optionally enabling layout analysis, scaling, thresholding, rotation, character-set selection, postprocessing filters, and UTF-8 output. The manual also documents conversion pipelines from PostScript, PDF, TIFF, JPEG, and compressed PNM through Ghostscript or Netpbm-style tools before recognition.
As a library, Ocrad exposes functions for loading images, setting output format and thresholds, running recognition, and retrieving block, line, and character results. Its OCR results file format gives downstream programs access to text blocks, line positions, character boxes, guesses, and confidence values.
For package metadata, Ocrad is a good example of a GNU-era single-purpose C++ utility that is both an executable and a library. It connects classic Unix image pipelines, OCR experimentation, GPL packaging, and downstream development packages such as Debian and Ubuntu’s `libocrad-dev`.
セキュリティ状態
narrow executable package without higher-risk signals.
リスク グリーン · 信頼度 低 · appliance
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
ocrad | cli | グローバル実行可能ファイル |
鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
https://www.gnu.org/software/ocrad/
インストールメタデータ
| パッケージキー | brew:ocrad |
|---|---|
| バージョン | 0.29 |
| パッケージマネージャ | Homebrew |
| パッケージマネージャページ | https://formulae.brew.sh/formula/ocrad |
| ホームページ | https://www.gnu.org/software/ocrad/ |
| リポジトリ | https://savannah.gnu.org/cvs?group=ocrad |
| 上流ドキュメント | https://www.gnu.org/software/ocrad |
| ライセンス | GPL-2.0-or-later |
| ソースアーカイブ | https://ftpmirror.gnu.org/gnu/ocrad/ocrad-0.29.tar.lz |
| 依存関係 | libpng |
| Bottle | 利用可能 (対象 arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | 宣言なし |
レジストリ情報
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | ocrad |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
ソースデータベース一致
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
libocrad-dev 0.29-1
optical character recognition library
https://www.gnu.org/software/ocrad/ocrad.html
sudo apt install libocrad-devocrad 0.29-1
optical character recognition program
https://www.gnu.org/software/ocrad/ocrad.html
sudo apt install ocradocrad
nix profile install nixpkgs#ocradlibocrad-dev 0.28-4build2
optical character recognition library
https://www.gnu.org/software/ocrad/ocrad.html
sudo apt install libocrad-devocrad 0.28-4build2
optical character recognition program
https://www.gnu.org/software/ocrad/ocrad.html
sudo apt install ocradocrad 0.29-6.fc44
An Optical Character Recognition program
http://www.gnu.org/software/ocrad/ocrad.html
sudo dnf install ocradocrad 0.29-3
OCR (Optical Character Recognition) program based on a feature extraction method
https://www.gnu.org/software/ocrad/
sudo pacman -S ocradocrad 0.29-1.7
Optical Character Recognition Program
https://www.gnu.org/software/ocrad/
sudo zypper install ocradocrad-devel 0.29-1.7
Development files for GNU ocrad
https://www.gnu.org/software/ocrad/
sudo zypper install ocrad-develocrad
sudo port install ocradソース経路
このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。
View the package source record on GitHub.