# grokj2k を Homebrew でインストール

grokj2k 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:grokj2k
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install grokj2k
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:grokj2k
- **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/grokj2k>
- **バージョン:** 20.3.9
- **ソース概要:** JPEG 2000 Library
- **ホームページ:** <https://github.com/GrokImageCompression/grok>
- **リポジトリ:** <https://github.com/GrokImageCompression/grok>
- **ライセンス:** AGPL-3.0-or-later
- **ソースアーカイブ:** <https://github.com/GrokImageCompression/grok/releases/download/v20.3.8/source-full.tar.gz>
- **最終更新:** 2026-08-04T06:59:41Z
- **生成日時:** 2026-08-04T22:13:35+00:00

## 実行可能ファイル

- grk_compress (cli)
- grk_decompress (cli)
- grk_dump (cli)
- grk_transcode (cli)
- grk_compress (エイリアス)
- grk_decompress (エイリアス)
- grk_dump (エイリアス)
- grk_transcode (エイリアス)

## 依存関係

- fmt
- jpeg-turbo
- libpng
- libtiff
- little-cms2
- xz
- zstd

## ビルド依存関係

- cmake
- doxygen
- pkgconf

## 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: 2026-08-04
- マネージャ版: 20.3.9
- マネージャ更新日: 2026-08-04
- ローカルデータ: OK
- 上流リポジトリ: https://github.com/GrokImageCompression/grok
- 情報: No cached GitHub release or tag data was available.
## プロジェクトの歴史と使われ方

grokj2k packages Grok, an open-source JPEG 2000 codec focused on fast encoding, decoding, transcoding, and modern JPEG 2000 features.

### プロジェクトの歴史

The Grok repository describes the project as an AGPL-licensed JPEG 2000 codec. Its command-line tools include compression, decompression, dumping, and packet-level transcoding utilities for JP2 and J2K workflows.

The project presents itself as a high-performance codec with support for High Throughput JPEG 2000, random-access decoding markers, cloud/S3-oriented I/O, metadata handling, broad pixel-format support, and bindings for several languages.

### 採用の歴史

Grok's packaging history is tied to specialist image, geospatial, preservation, and scientific workflows where JPEG 2000 remains useful. The upstream README specifically notes integration into GDAL, making the package relevant to users who need JPEG 2000 support through geospatial tooling.

### 使われ方

Package users typically reach it through utilities such as `grk_compress`, `grk_decompress`, `grk_dump`, and `grk_transcode`. The transcoder can rewrite JPEG 2000 files at packet level for operations such as adding TLM and PLT markers without a full decode/re-encode cycle.

### パッケージ好きにとっての重要性

For package nerds, grokj2k sits in the same small but important corner as OpenJPEG, Kakadu, JasPer, and image-library delegates: it is not a daily shell toy, but it determines whether image stacks can process JP2/J2K data reproducibly from system packages.

### タイムライン

- 2016: The GitHub repository was created.
- 2020s: The project emphasized high-performance JPEG 2000, HTJ2K, transcoding, cloud I/O, and fuzz testing.
- 2020s: Homebrew packaged the command-line tools as `grokj2k`.

### Related projects

- Related projects include OpenJPEG, Kakadu, JasPer, GDAL's JP2 drivers, image servers that consume JPEG 2000, and preservation workflows that use JP2/J2K assets.

### ソース

- <https://api.github.com/repos/GrokImageCompression/grok>
- <https://api.github.com/repos/GrokImageCompression/grok/releases>
- <https://gdal.org/en/stable/drivers/raster/jp2grok.html>
- <https://github.com/GrokImageCompression/grok>
- <https://github.com/GrokImageCompression/grok#readme>


## セキュリティノート

grokj2k 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、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:** grokj2k
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable


## 関連リンク

- [Source-control packages](https://pkg.so/ja/source-control-tools/) - Belongs to a source-control command family.
- [Terminal utility packages](https://pkg.so/ja/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Archive and compression packages](https://pkg.so/ja/archive-compression-tools/) - Matched archive or compression metadata.
- [Networking and protocol packages](https://pkg.so/ja/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [xz](https://pkg.so/ja/brew/xz/) - Runtime dependency declared by Homebrew.
- [zstd](https://pkg.so/ja/brew/zstd/) - Runtime dependency declared by Homebrew.
- [libpng](https://pkg.so/ja/brew/libpng/) - Runtime dependency declared by Homebrew.
- [jpeg-turbo](https://pkg.so/ja/brew/jpeg-turbo/) - Runtime dependency declared by Homebrew.
- [libtiff](https://pkg.so/ja/brew/libtiff/) - Runtime dependency declared by Homebrew.
- [little-cms2](https://pkg.so/ja/brew/little-cms2/) - Runtime dependency declared by Homebrew.
- [pkgconf](https://pkg.so/ja/brew/pkgconf/) - Build dependency declared by Homebrew.
- [cmake](https://pkg.so/ja/brew/cmake/) - Build dependency declared by Homebrew.
- [doxygen](https://pkg.so/ja/brew/doxygen/) - Build dependency declared by Homebrew.
- [ffmpeg](https://pkg.so/ja/brew/ffmpeg/) - Shares pkgdb curated category or tags: cli, media, transcoding.
- [openjph](https://pkg.so/ja/brew/openjph/) - Shares pkgdb curated category or tags: cli, image-codec, media.
- [jpeg-xl](https://pkg.so/ja/brew/jpeg-xl/) - Shares pkgdb curated category or tags: cli, image-codec, image-compression, media.
- [openjpeg](https://pkg.so/ja/brew/openjpeg/) - Shares pkgdb curated category or tags: cli, image-codec, media.
- [libheif](https://pkg.so/ja/brew/libheif/) - Shares pkgdb curated category or tags: cli, image-codec, media.
- [libavif](https://pkg.so/ja/brew/libavif/) - Shares pkgdb curated category or tags: cli, image-codec, media.
- [jasper](https://pkg.so/ja/brew/jasper/) - Shares pkgdb curated category or tags: cli, image-codec, media.
- [jbig2dec](https://pkg.so/ja/brew/jbig2dec/) - Shares pkgdb curated category or tags: cli, image-compression, media.
- [jbig2enc](https://pkg.so/ja/brew/jbig2enc/) - Both packages work with overlapping file formats or content types. Shared terms: cli, compression, image, image-compression, jpeg.

## Combined YAML source

View the package source record on GitHub. [combined/grokj2k.yml](https://github.com/mxcl/pkgdb/blob/main/combined/grokj2k.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- cross-ecosystem install command graph