# libopenraw > software to parse digital camera RAW images **Wikidata**: [Q122705165](https://www.wikidata.org/wiki/Q122705165) **Source**: https://4ort.xyz/entity/libopenraw ## Summary libopenraw is a free software library designed to parse digital camera RAW image files. Developed by Hubert Figuière, it provides a standardized way for software applications to decode and access raw image data from various camera manufacturers. The library is licensed under the GNU Lesser General Public License (LGPL) version 3.0 or later and is widely available in major Linux distribution repositories. ## Key Facts - **Developer:** Hubert Figuière - **License:** GNU Lesser General Public License, version 3.0 or later (LGPL-3.0-or-later) - **Latest Version:** 0.3.7 (released July 31, 2023) - **Category:** Free software / Library - **Primary Function:** Parsing digital camera RAW images - **Source Repository:** Hosted on GitLab at `freedesktop.org` - **Copyright Status:** Copyrighted - **Linux Packages:** Available as `libopenraw` (Fedora, Arch Linux) and `media-libs/libopenraw` (Gentoo) - **Official Website:** `https://libopenraw.freedesktop.org/libopenraw/` ## FAQs ### Q: What is libopenraw used for? A: libopenraw is a software library used to parse and decode digital camera RAW image files. It allows developers to integrate RAW image support into their applications, enabling the reading of proprietary raw data formats. ### Q: Under what license is libopenraw distributed? A: The software is distributed under the GNU Lesser General Public License (LGPL), version 3.0 or later. This allows the library to be linked with both free and proprietary software applications. ### Q: Who maintains libopenraw? A: The software is developed and maintained by Hubert Figuière. The source code is hosted on the freedesktop.org GitLab instance. ### Q: Is libopenraw free to use? A: Yes, libopenraw is classified as free software. It is copyrighted but distributed under terms that allow users to freely run, study, change, and distribute it and modified versions. ## Why It Matters libopenraw plays a critical technical role in the free software ecosystem by addressing the complex challenge of interoperability with proprietary camera RAW formats. Digital cameras often use unique, undocumented encoding methods to store raw sensor data, which can lock users into specific manufacturer software. By providing a dedicated library to parse these formats, libopenraw lowers the barrier for developers to create open-source image viewers, converters, and editors. Its significance is underscored by its integration into major Linux distributions like Fedora, Arch Linux, and Gentoo. This widespread availability ensures that the Linux desktop environment has a foundational component for professional photography workflows. Furthermore, its release under the LGPL (Lesser GPL) is strategically important; it permits the library to be used in a broader range of applications without forcing the entire application to become open source, thereby encouraging wider adoption across the software industry while keeping the library itself free. ## Notable For - **Specialized Functionality:** Dedicated specifically to the parsing of digital camera RAW images, a technically demanding niche. - **Licensing Strategy:** Uses the LGPL, which strikes a balance between protecting the library's code and allowing use in commercial or mixed-license applications. - **Ecosystem Integration:** Recognized and packaged by major Linux distributions (Fedora, Arch, Gentoo), indicating its status as a standard component in the Linux graphics stack. - **Freedesktop.org Hosting:** The project is hosted on freedesktop.org, aligning it with other critical open-source interoperability projects. ## Body ### Development and Licensing libopenraw is a free software project initiated and developed by Hubert Figuière. The project is distinct in its classification as "free software," emphasizing the user's freedom to run, study, and modify the code. It is officially copyrighted and released under the **GNU Lesser General Public License, version 3.0 or later**. This licensing choice is particularly relevant for a library of this nature, as it ensures that the code for parsing RAW images remains open and modifiable by the community, while allowing non-free software to link against the library without violating the terms of the application's own license. ### Technical Functionality The core utility of libopenraw is to parse digital camera RAW images. RAW files contain minimally processed data from the image sensor of a digital camera. Because these formats vary significantly between manufacturers (and often between camera models), a specialized library is required to decode the data into a usable form. libopenraw acts as an abstraction layer, handling the specific decoding logic so that client software does not need to implement drivers for every camera. ### Availability and Distribution The software is actively maintained and widely distributed within the Linux ecosystem. * **Fedora:** Available as the package `libopenraw`. * **Arch Linux:** Available as the package `libopenraw`. * **Gentoo:** Available as `media-libs/libopenraw`. The project's source code is maintained in a Git repository hosted by freedesktop.org, a well-known host for open-source projects that focus on interoperability and shared standards for the X Window System and Linux desktops. ### Version History The project continues to see updates, with recent releases improving support and stability. * **Version 0.3.7:** Released on July 31, 2023. The official project website is accessible in English at `https://libopenraw.freedesktop.org/libopenraw/`. ## References 1. [2023](https://gitlab.freedesktop.org/libopenraw/libopenraw/-/releases/libopenraw-0.3.7)