macOS
Homebrew已验证 · 100%
brew install leptonicalocal Homebrew formula metadata
MacPorts已验证 · 94%
sudo port install leptonicaMacPorts ports tree · graphics/leptonica/Portfile · 来源: api.github.com
安装
其他安装命令
Linux
Alpine Linux apk已验证 · 92%
sudo apk add leptonicaAlpine Linux edge package indexes · leptonica · 来源: dl-cdn.alpinelinux.org
Fedora dnf已验证 · 92%
sudo dnf install leptonicaFedora Rawhide package metadata · leptonica · 来源: dl.fedoraproject.org
Nix已验证 · 92%
nix profile install nixpkgs#leptonicanixpkgs package indexes · pkgs/by-name/le/leptonica/package.nix · 来源: api.github.com
Arch Linux pacman已验证 · 92%
sudo pacman -S leptonicaArch Linux sync databases · leptonica · 来源: geo.mirror.pkgbuild.com
openSUSE zypper已验证 · 92%
sudo zypper install leptonica-developenSUSE Tumbleweed package metadata · leptonica-devel · 来源: download.opensuse.org
概览
软件包摘要
Image processing and image analysis library
历史
项目历史与用法
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.
项目历史
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.
采用历史
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.
使用方式
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.
为什么软件包爱好者会关心
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.
时间线
- 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.
来源
安全态势
风险级别：blue
broad file, network, media, or database tool signal.
风险分类器
blue 风险 · 中 置信度 · tool
原因
- broad file, network, media, or database tool signal
信号
- text:image
安装行为
- formula 元数据中未记录 Homebrew post-install 钩子。
- Homebrew bottle 元数据适用于 6 个平台目标。
- 安装时包含 6 个运行时依赖。
- 构建元数据列出 1 个构建依赖。
建议审查
在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。
可执行文件
已安装的可执行文件
| 命令 | 类型 | 暴露范围 | 备注 |
|---|---|---|---|
convertfilestopdf | cli | 全局可执行文件 | |
convertfilestops | cli | 全局可执行文件 | |
convertformat | cli | 全局可执行文件 | |
convertsegfilestopdf | cli | 全局可执行文件 | |
convertsegfilestops | cli | 全局可执行文件 | |
converttopdf | cli | 全局可执行文件 | |
converttops | cli | 全局可执行文件 | |
fileinfo | cli | 全局可执行文件 | |
imagetops | cli | 全局可执行文件 | |
xtractprotos | cli | 全局可执行文件 |
新鲜度
版本和新鲜度
这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。
页面生成时间2026-07-10
管理器版本1.87.0
管理器更新时间
本地数据OK
上游not checked
检测到的最新版本未检测到
https://github.com/DanBloomberg/leptonica
- 信息No package-manager update timestamp was available.低 置信度
- 信息No cached GitHub release or tag data was available.https://github.com/DanBloomberg/leptonicanone 置信度
安装元数据
软件包元数据
| 软件包键 | brew:leptonica |
|---|---|
| 版本 | 1.87.0 |
| 软件包管理器 | Homebrew |
| 软件包管理器页面 | https://formulae.brew.sh/formula/leptonica |
| 主页 | http://www.leptonica.org/ |
| 仓库 | https://github.com/DanBloomberg/leptonica |
| 上游文档 | https://www.leptonica.org/ |
| 许可证 | BSD-2-Clause |
| 源码归档 | https://github.com/DanBloomberg/leptonica/releases/download/1.87.0/leptonica-1.87.0.tar.gz |
| 依赖 | giflib, jpeg-turbo, libpng, libtiff, openjpeg, webp |
| 构建依赖 | pkgconf |
| Bottle | 可用 (于 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | 未定义 |
| 服务 | 未声明 |
注册表事实
源数据库详情
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | leptonica |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
源数据库匹配
其他软件包管理器记录
匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。
Nix95%
leptonica
nix profile install nixpkgs#leptonica- normalized package name match
- 匹配方式：Leptonica
apk95%
leptonica 1.87.0-r0
Software that is broadly useful for image processing and image analysis applications
sudo apk add leptonica- License: custom
- Architecture: x86_64
- Source Package: leptonica
- 1 依赖
- 1 提供
- normalized package name match
- 匹配方式：Leptonica
apk95%
leptonica-dev 1.87.0-r0
Software that is broadly useful for image processing and image analysis applications (development files)
sudo apk add leptonica-dev- License: custom
- Architecture: x86_64
- Source Package: leptonica
- 1 依赖
- 1 提供
- normalized package name match
- 匹配方式：Leptonica
apk95%
leptonica-doc 1.87.0-r0
Software that is broadly useful for image processing and image analysis applications (documentation)
sudo apk add leptonica-doc- License: custom
- Architecture: x86_64
- Source Package: leptonica
- normalized package name match
- 匹配方式：Leptonica
dnf95%
leptonica 1.87.0-4.fc45
C library for efficient image processing and image analysis operations
https://github.com/danbloomberg/leptonica
sudo dnf install leptonica- License: Leptonica
- Category: Unspecified
- Architecture: i686
- Source Package: leptonica
- 10 依赖
- 2 提供
- normalized package name match
- 匹配方式：Leptonica
dnf95%
leptonica-devel 1.87.0-4.fc45
Development files for leptonica
https://github.com/danbloomberg/leptonica
sudo dnf install leptonica-devel- License: Leptonica
- Category: Unspecified
- Architecture: i686
- Source Package: leptonica
- 5 依赖
- 3 提供
- normalized package name match
- 匹配方式：Leptonica
dnf95%
leptonica-tools 1.87.0-4.fc45
Leptonica utility tools
https://github.com/danbloomberg/leptonica
sudo dnf install leptonica-tools- License: Leptonica
- Category: Unspecified
- Architecture: x86_64
- Source Package: leptonica
- 4 依赖
- 1 提供
- normalized package name match
- 匹配方式：Leptonica
dnf95%
mingw32-leptonica 1.87.0-4.fc45
MinGW Windows Leptonica library
https://github.com/danbloomberg/leptonica
sudo dnf install mingw32-leptonica- License: Leptonica
- Category: Unspecified
- Architecture: noarch
- Source Package: leptonica
- 4 依赖
- 3 提供
- normalized package name match
- 匹配方式：Leptonica
dnf95%
mingw64-leptonica 1.87.0-4.fc45
MinGW Windows Leptonica library
https://github.com/danbloomberg/leptonica
sudo dnf install mingw64-leptonica- License: Leptonica
- Category: Unspecified
- Architecture: noarch
- Source Package: leptonica
- 4 依赖
- 3 提供
- normalized package name match
- 匹配方式：Leptonica
pacman95%
leptonica 1.87.0-1
Software that is broadly useful for image processing and image analysis applications
sudo pacman -S leptonica- License: custom
- Architecture: x86_64
- 15 依赖
- normalized package name match
- 匹配方式：Leptonica
zypper95%
leptonica-devel 1.87.0-1.4
Leptonica Development Files
sudo zypper install leptonica-devel- License: BSD-2-Clause
- Category: Development/Libraries/C and C++
- Architecture: x86_64
- Source Package: leptonica
- 2 依赖
- 4 提供
- normalized package name match
- 匹配方式：Leptonica
zypper95%
leptonica-tools 1.87.0-1.4
Leptonica tools
sudo zypper install leptonica-tools- License: BSD-2-Clause
- Category: Productivity/Graphics/Other
- Architecture: x86_64
- Source Package: leptonica
- 2 依赖
- 1 提供
- normalized package name match
- 匹配方式：Leptonica
zypper95%
libleptonica6 1.87.0-1.4
Library for image processing and image analysis applications
sudo zypper install libleptonica6- License: BSD-2-Clause
- Category: System/Libraries
- Architecture: x86_64
- Source Package: leptonica
- 11 依赖
- 3 提供
- normalized package name match
- 匹配方式：Leptonica
MacPorts95%
leptonica
sudo port install leptonica- normalized package name match
- 匹配方式：Leptonica
Nix92%
fileinfo
nix profile install nixpkgs#fileinfo- installed executable or alias match
- 匹配方式：Fileinfo
来源线索
由仓库数据生成
此页面由 av-web 从 scripts/generate-pkg-sqlite.py 生成的私有软件包 SQLite 工件提供。
Combined YAML source
View the package source record on GitHub.
使用的来源
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment