# ssocr mit Homebrew, apt, Nix installieren Prüfe Installationswege, Executables, Metadaten und Sicherheitshinweise für ssocr in AI-Agent-Workflows. ## Installation ```sh sudo av install brew:ssocr ``` Weitere Installationsbefehle: ### macOS - Homebrew (100%): ```sh brew install ssocr ``` Evidenz: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install ssocr ``` Evidenz: Debian stable package indexes: ssocr from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - Nix (92%): ```sh nix profile install nixpkgs#ssocr ``` Evidenz: nixpkgs package indexes: pkgs/by-name/ss/ssocr/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Paketfakten - **Paketschlüssel:** brew:ssocr - **Paketmanager:** Homebrew - **Version:** 2.25.1 - **Quellzusammenfassung:** Seven Segment Optical Character Recognition - **Homepage:** - **Repository:** - **Generiert:** 2026-08-03T19:37:03+00:00 ## Executables - ssocr (Alias) ## Installationsverhalten - Bottle: nicht verfügbar ## Version und Aktualität - Seite generiert: 2026-08-03 - Manager-Version: 2.25.1 ## Projektgeschichte und Nutzung ssocr is a specialized command-line OCR program for reading seven-segment displays from images. It appeals to package nerds because it solves a narrow hardware-adjacent automation problem with deterministic C code rather than a general OCR or machine-learning stack. ### Projektgeschichte The official page explains that ssocr was written because general OCR software struggled with seven-segment displays, often segmenting a single digit into multiple characters. The project's niche is recognizing digits and characters made from seven-segment displays, especially from consistent camera setups. The first 1.x versions used a separate preprocessing program named ssocrpp. The official version history says version 2 integrated all functionality into one binary and was the first publicly released ssocr version, with later development concentrating on image manipulation options and removing the need for separate tools. ### Adoptionsgeschichte The upstream page lists third-party packages for FreeBSD, NixOS, Debian Buster and newer, Ubuntu Disco Dingo and newer, and Homebrew for macOS and x86-64 GNU/Linux. The supplied package metadata also shows Homebrew, Debian, Nix, and Ubuntu. Adoption is use-case driven rather than broad platform infrastructure: ssocr is useful for people who need to turn photos of meters, scales, counters, or other seven-segment readouts into scriptable text. ### Wie es verwendet wird ssocr reads an image containing a seven-segment display, applies optional preprocessing commands such as crop, thresholding, inversion, rotation, shear, dilation, and erosion, then prints recognized digits to standard output. The man page documents reading from files or standard input and using Imlib2-supported image formats. The official usage advice emphasizes fixed camera placement, consistent lighting, debug images, threshold tuning, cropping to the display, deskewing with shear or rotate, and specifying the expected number or character set of digits to catch recognition errors. ### Warum Paket-Nerds sich dafür interessieren ssocr is significant because it is tiny, deterministic, and composable: it turns physical-world display readings into stdout, where shell scripts, cron jobs, home automation, and data logging can consume them. It is also a reminder that not every OCR problem wants Tesseract. For package maintainers, ssocr's value is its small dependency surface, man page, source tarballs, and clear behavior for one specific class of displays. ### Zeitleiste - 2.x: Version 2 integrated ssocrpp preprocessing into the main ssocr binary and became the first publicly released ssocr line. - 2.8.1: A manual page was added. - 2.9.0: Reading images from a pipe was added, easing command-line composition. - 2.11.0: Decimal point detection was added. - 2.12.0: Hexadecimal digit detection was added. - 2.13.0: Automatic digit-count determination was added. - 2.15.0: Minus-sign detection was added. - 2.22.0: A NEWS file was added, compilation with GCC 10 was fixed, and table-tennis-robot character sets were added. - 2025: The official page lists version 2.25.1 as the current source tarball and generated man page version. ### Related projects - The official page discusses general OCR programs such as GNU Ocrad, GOCR, OCRFeeder, ocropus, and Tesseract as related but less suitable for this specific seven-segment problem. - It also links related seven-segment OCR projects such as Display OCR and sevenSegDecode. ### Quellen - - - input source_facts.package-manager ## Sicherheitshinweise narrow executable package without higher-risk signals. - **Geiger-Risiko:** grün / niedrig - narrow executable package without higher-risk signals ## Andere Paketmanager-Einträge - Debian apt - ssocr - 2.25.0-1: normalized package name match | Debian stable package indexes: ssocr from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | OCR for seven segment displays | https://www.unix-ag.uni-kl.de/~auerswal/ssocr/ - Nix - ssocr: normalized package name match | nixpkgs package indexes: pkgs/by-name/ss/ssocr/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - ssocr - 2.23.1-1build2: normalized package name match | Ubuntu 24.04 LTS package indexes: ssocr from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | OCR for seven segment displays | https://www.unix-ag.uni-kl.de/~auerswal/ssocr/ ## Combined YAML source View the package source record on GitHub. [combined/ssocr.yml](https://github.com/mxcl/pkgdb/blob/main/combined/ssocr.yml) ## Quellen - 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