# jpeg を Homebrew, apk, MacPorts, zypper でインストール jpeg 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:jpeg ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install jpeg ``` 証拠: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install jpeg ``` 証拠: MacPorts ports tree: graphics/jpeg/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - apk (92%): ```sh sudo apk add jpeg ``` 証拠: Alpine Linux edge package indexes: jpeg from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz - zypper (92%): ```sh sudo zypper install libjpeg-turbo ``` 証拠: openSUSE Tumbleweed package metadata: libjpeg-turbo from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst ## パッケージ情報 - **パッケージキー:** brew:jpeg - **パッケージマネージャ:** Homebrew - **パッケージマネージャページ:** - **バージョン:** 10 - **ソース概要:** Image manipulation library - **ホームページ:** - **上流ドキュメント:** - **ライセンス:** IJG - **ソースアーカイブ:** - **生成日時:** 2026-07-10T07:20:53+00:00 ## 実行可能ファイル - cjpeg (cli) - djpeg (cli) - jpegtran (cli) - rdjpgcom (cli) - wrjpgcom (cli) - cjpeg (エイリアス) - djpeg (エイリアス) - jpegtran (エイリアス) - rdjpgcom (エイリアス) - wrjpgcom (エイリアス) ## インストール挙動 - post-install フック: 未定義 - Bottle: 利用可能 対象 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## バージョンと鮮度 - ページ生成日: 2026-07-10 - マネージャ版: 10 - ローカルデータ: OK - 上流リポジトリ: https://www.ijg.org/ - 情報: No package-manager update timestamp was available. - 情報: Release/tag comparison is only available for GitHub repositories. ## プロジェクトの歴史と使われ方 The Homebrew `jpeg` formula represents the Independent JPEG Group's libjpeg software, one of the classic Unix image libraries behind JPEG encoding, decoding, and transformation tools. IJG describes itself as an informal group that writes and distributes a widely used free JPEG compression library, with the first version released on 7 October 1991. ### プロジェクトの歴史 IJG's package grew around a portable C implementation of the JPEG standard, plus command-line tools such as `cjpeg`, `djpeg`, `jpegtran`, `rdjpgcom`, and `wrjpgcom`. Its README emphasizes portability, flexibility, and industrial-strength reuse rather than tutorial code, which explains why libjpeg became infrastructure rather than just a sample implementation. The package also became a baseline for later JPEG implementations and forks. libjpeg-turbo maintains a reference repository of IJG code for comparison and benchmarking, while the IJG reference site frames libjpeg as the technical basis of a media format that remains massively deployed. ### 採用の歴史 IJG libjpeg spread because it gave Unix, desktop, and embedded software a royalty-free way to read and write JPEG files. Package managers expose both the library and its small CLI utilities, making it a dependency of image viewers, converters, web tooling, and batch-processing scripts. The 6b ABI became especially important in distribution culture because many downstream projects and alternative implementations, including libjpeg-turbo and mozjpeg-compatible builds, preserved or targeted that interface. ### 使われ方 `cjpeg` and `djpeg` convert between JPEG and other image formats, `jpegtran` performs lossless transforms and transcoding, and `rdjpgcom`/`wrjpgcom` handle textual comments. Developers also link against libjpeg directly when adding JPEG support to applications. ### パッケージ好きにとっての重要性 For package maintainers, IJG JPEG is a canonical example of a tiny-looking formula that underpins a huge dependency graph. Its ABI history explains why distributions often care about which JPEG implementation satisfies `libjpeg` and why compatibility with IJG behavior still matters decades after the format became ordinary. ### タイムライン - 1991-10-07: IJG released the first version of its JPEG software. - 1998-03-27: IJG release 6b established a long-lived compatibility target for downstream libraries and tools. - 2024: The IJG reference site marked JPEG's 33rd anniversary and described ongoing libjpeg development. - 2026-01-25: IJG release 10 was published. ### Related projects - Related projects include libjpeg-turbo, mozjpeg, JPEG Club's IJG reference material, and the many CLI tools that build on libjpeg-compatible APIs. ### ソース - - - ## セキュリティノート jpeg に一致するローカルシークレット処理マニフェストは見つかりませんでした。将来の対応で安定したパッケージ URL を使えるよう、Nucleus パッケージメタデータはここに公開されています。 ## ソースデータベース詳細 - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** jpeg - **Aliases:** libjpeg, libjpg - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** yes - **URL Keys:** stable ## 他のパッケージマネージャ記録 - apk - jpeg - 9f-r0: normalized package name match | Alpine Linux edge package indexes: jpeg from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | Wrapper for libjpeg-turbo | https://www.ijg.org/ - apk - jpeg-dev - 9f-r0: normalized package name match | Alpine Linux edge package indexes: jpeg-dev from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | Wrapper for libjpeg-turbo-dev | https://www.ijg.org/ - apk - libjpeg - 9f-r0: normalized package name match | Alpine Linux edge package indexes: libjpeg from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | Wrapper for libjpeg-turbo | https://www.ijg.org/ - zypper - libjpeg-turbo - 3.1.4.1-83.2: normalized package name match | openSUSE Tumbleweed package metadata: libjpeg-turbo from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst | A SIMD-accelerated library for manipulating JPEG image files | https://libjpeg-turbo.org/ - MacPorts - jpeg: normalized package name match | MacPorts ports tree: graphics/jpeg/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## 関連リンク - [Networking and protocol packages](https://www.automicvault.com/ja/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Media and graphics packages](https://www.automicvault.com/ja/pkg/media-graphics-tools/) - Matched media, image, audio, video, or graphics metadata. - [jpegtran-bin](https://www.automicvault.com/ja/pkg/npm/jpegtran-bin/) - Executable or command metadata overlaps with this package. Shared terms: image, jpeg, jpegtran. - [jpeg-archive](https://www.automicvault.com/ja/pkg/brew/jpeg-archive/) - Both packages work with overlapping file formats or content types. Shared terms: image, jpeg. - [jpeg-turbo](https://www.automicvault.com/ja/pkg/brew/jpeg-turbo/) - Both packages work with overlapping file formats or content types. Shared terms: image, jpeg. ## Combined YAML source View the package source record on GitHub. [combined/jpeg.yml](https://github.com/automic-vault/db/blob/main/combined/jpeg.yml) ## ソース - Nucleus package database - package-page enrichment - curated package history - package version freshness - package relationship graph - external package-manager database matches - cross-ecosystem install command graph