# leptonica を Homebrew, apk, dnf, MacPorts, Nix, pacman, zypper でインストール leptonica 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 ```sh sudo av install brew:leptonica ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install leptonica ``` 証拠: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install leptonica ``` 証拠: MacPorts ports tree: graphics/leptonica/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - apk (92%): ```sh sudo apk add leptonica ``` 証拠: Alpine Linux edge package indexes: leptonica from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz - dnf (92%): ```sh sudo dnf install leptonica ``` 証拠: Fedora Rawhide package metadata: leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#leptonica ``` 証拠: nixpkgs package indexes: pkgs/by-name/le/leptonica/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S leptonica ``` 証拠: Arch Linux sync databases: leptonica from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz - zypper (92%): ```sh sudo zypper install leptonica-devel ``` 証拠: openSUSE Tumbleweed package metadata: leptonica-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst ## パッケージ情報 - **パッケージキー:** brew:leptonica - **パッケージマネージャ:** Homebrew - **バージョン:** 1.87.0 - **ソース概要:** Image processing and image analysis library - **ホームページ:** - **リポジトリ:** - **生成日時:** 2026-08-03T19:37:03+00:00 ## 実行可能ファイル - convertfilestopdf (エイリアス) - convertfilestops (エイリアス) - convertformat (エイリアス) - convertsegfilestopdf (エイリアス) - convertsegfilestops (エイリアス) - converttopdf (エイリアス) - converttops (エイリアス) - fileinfo (エイリアス) - imagetops (エイリアス) - xtractprotos (エイリアス) ## インストール挙動 - Bottle: 利用不可 ## バージョンと鮮度 - ページ生成日: 2026-08-03 - マネージャ版: 1.87.0 ## プロジェクトの歴史と使われ方 Leptonica is Dan Bloomberg's open source C library for image processing and image analysis, with especially deep coverage of document-image operations used by OCR and page-processing tools. ### プロジェクトの歴史 Leptonica's official README metadata dates the work to 2001 and describes it as an open source C library for efficient image processing and image analysis. The project site emphasizes a pedagogical style: the code is accompanied by web pages explaining algorithms and design methods. The library grew into a broad C toolkit covering raster operations, affine and projective transforms, morphology, convolution, connected components, image format I/O, PDF and PostScript generation, document cleanup, skew detection, dewarping, barcode experiments, and many supporting data structures. ### 採用の歴史 Leptonica became important infrastructure below OCR and document-image projects. Its README lists Tesseract OCR, OpenCV, and jbig2enc among open source projects that use it. The project's packaging history reflects a classic C-library role: distributions ship the library, headers, command-line utilities, and example programs so higher-level tools can depend on a stable native image-processing base. ### 使われ方 Developers link against liblept and use the pix-centered API for reading, transforming, analyzing, and writing images. The package also includes command-line programs such as file conversion and PDF/PostScript helpers that expose common library workflows. ### パッケージ好きにとっての重要性 Leptonica is significant because it is one of those quiet dependency packages that makes OCR stacks work. It is small enough to feel like a C utility library, but large enough to cover thousands of image-processing functions and the boring portability details that downstream packages need. ### タイムライン - 2001: Official metadata identifies Leptonica as an open source C library for image processing and image analysis. - 2010s: Leptonica moved into GitHub-based maintenance, with contributors preserving old distributions and modernizing build support. - 2024: Version 1.85.0 added PDF rendering support and many maintenance fixes. - 2025: Version 1.87.0 was distributed on December 24, 2025. ### Related projects - Tesseract OCR is a major downstream user. - OpenCV and jbig2enc are listed by Leptonica as open source projects using the library. ### ソース - - - - ## セキュリティノート broad file, network, media, or database tool signal. - **Geiger リスク:** blue / 中 - broad file, network, media, or database tool signal ## 他のパッケージマネージャ記録 - Nix - leptonica: normalized package name match | nixpkgs package indexes: pkgs/by-name/le/leptonica/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - apk - leptonica - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications | http://www.leptonica.com/ - apk - leptonica-dev - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications (development files) | http://www.leptonica.com/ - apk - leptonica-doc - 1.87.0-r0: normalized package name match | Alpine Linux edge package indexes: leptonica-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Software that is broadly useful for image processing and image analysis applications (documentation) | http://www.leptonica.com/ - dnf - leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | C library for efficient image processing and image analysis operations | https://github.com/danbloomberg/leptonica - dnf - leptonica-devel - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Development files for leptonica | https://github.com/danbloomberg/leptonica - dnf - leptonica-tools - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: leptonica-tools from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Leptonica utility tools | https://github.com/danbloomberg/leptonica - dnf - mingw32-leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: mingw32-leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | MinGW Windows Leptonica library | https://github.com/danbloomberg/leptonica - dnf - mingw64-leptonica - 1.87.0-5.fc45: normalized package name match | Fedora Rawhide package metadata: mingw64-leptonica from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | MinGW Windows Leptonica library | https://github.com/danbloomberg/leptonica - pacman - leptonica - 1.87.0-1: normalized package name match | Arch Linux sync databases: leptonica from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | Software that is broadly useful for image processing and image analysis applications | http://www.leptonica.com - zypper - leptonica-devel - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: leptonica-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Leptonica Development Files | http://leptonica.org/ - zypper - leptonica-tools - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: leptonica-tools from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Leptonica tools | http://leptonica.org/ - zypper - libleptonica6 - 1.87.0-1.6: normalized package name match | openSUSE Tumbleweed package metadata: libleptonica6 from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Library for image processing and image analysis applications | http://leptonica.org/ - MacPorts - leptonica: normalized package name match | MacPorts ports tree: graphics/leptonica/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 - Nix - fileinfo: installed executable or alias match | nixpkgs package indexes: pkgs/by-name/fi/fileinfo/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Combined YAML source View the package source record on GitHub. [combined/leptonica.yml](https://github.com/mxcl/pkgdb/blob/main/combined/leptonica.yml) ## ソース - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph