# Intel Open Image Denoise library

> software library of denoising filters for images rendered with ray tracing

**Wikidata**: [Q122740484](https://www.wikidata.org/wiki/Q122740484)  
**Source**: https://4ort.xyz/entity/intel-open-image-denoise-library

## Summary
Intel Open Image Denoise is a free software library that provides denoising filters for images rendered with ray tracing. It is developed by Intel and supports Linux, Microsoft Windows, and macOS operating systems. The library is licensed under the Apache Software License 2.0.

## Key Facts
- Intel Open Image Denoise is a software library of denoising filters for images rendered with ray tracing.
- It is free software distributed under the Apache Software License 2.0.
- The library runs on Linux, Microsoft Windows, and macOS operating systems.
- The latest stable version is 1.2.3, released on September 11, 2020.
- The library's source code is hosted on GitHub at https://github.com/OpenImageDenoise/oidn.
- Intel Open Image Denoise is classified as a software library, free software, and ray tracing denoiser.

## FAQs
### Q: What is Intel Open Image Denoise?
A: Intel Open Image Denoise is a free software library that provides denoising filters for images rendered with ray tracing. It is developed by Intel and supports Linux, Microsoft Windows, and macOS operating systems.

### Q: What license does Intel Open Image Denoise use?
A: Intel Open Image Denoise is licensed under the Apache Software License 2.0.

### Q: What are the system requirements for Intel Open Image Denoise?
A: Intel Open Image Denoise runs on Linux, Microsoft Windows, and macOS operating systems.

## Why It Matters
Intel Open Image Denoise is significant because it addresses a critical challenge in ray tracing: noise reduction. Ray tracing is a rendering technique that produces highly realistic images by simulating the physical behavior of light, but it can be computationally expensive and introduce noise, especially in scenes with complex lighting. Intel Open Image Denoise provides a solution to this problem by offering high-quality denoising filters that can significantly reduce noise in ray-traced images while preserving important details. This allows artists and developers to achieve better visual quality in their renders without sacrificing performance. By making the library free and open-source, Intel has made this technology accessible to a wide range of users, from individual artists to large studios, fostering innovation and advancing the field of computer graphics.

## Notable For
- Being a free and open-source software library for denoising ray-traced images.
- Supporting multiple operating systems, including Linux, Microsoft Windows, and macOS.
- Offering high-quality denoising filters that preserve important details in ray-traced images.
- Being developed and maintained by Intel, a leading technology company in the field of computer graphics.
- Having a active development and release cycle, with the latest stable version (1.2.3) released in September 2020.

## Body
### Overview
Intel Open Image Denoise is a software library that provides denoising filters for images rendered with ray tracing. It is developed by Intel and is available as free and open-source software under the Apache Software License 2.0. The library is designed to reduce noise in ray-traced images while preserving important details, allowing for better visual quality without sacrificing performance.

### Supported Platforms
Intel Open Image Denoise supports multiple operating systems, including:
- Linux: A family of Unix-like operating systems, with the first release on September 17, 1991.
- Microsoft Windows: A family of computer operating systems developed by Microsoft, with the first release on November 20, 1985.
- macOS: An operating system for Apple computers, with the first release on March 24, 2001.

### Version History
The library has undergone several stable releases since its initial launch:
- Version 0.8.0: Released on January 29, 2019
- Version 0.8.1: Released on February 2, 2019
- Version 0.8.2: Released on March 25, 2019
- Version 0.9.0: Released on May 9, 2019
- Version 1.0.0: Released on July 29, 2019
- Version 1.1.0: Released on October 14, 2019
- Version 1.2.0: Released on April 9, 2020
- Version 1.2.1: Released on June 15, 2020
- Version 1.2.2: Released on July 10, 2020
- Version 1.2.3: Released on September 11, 2020 (latest stable version)

### Development and Distribution
Intel Open Image Denoise is developed and maintained by Intel, with the source code hosted on GitHub at https://github.com/OpenImageDenoise/oidn. The library is distributed as free and open-source software, allowing users to freely run, study, change, and distribute it and modified versions. The library is also available through MacPorts, a package management system for macOS, under the port name "oidn".

### Technical Details
Intel Open Image Denoise is implemented as a software library, providing a set of denoising filters that can be integrated into various ray tracing applications. The library is written in a programming language compatible with Q2407, which likely refers to a specific programming language or framework used by Intel. The library's functionality is focused on denoising images rendered with ray tracing, addressing the challenge of noise reduction in complex lighting scenarios.

## References

1. [Source](https://github.com/OpenImageDenoise/oidn/blob/master/LICENSE.txt)
2. [Release 0.8.0. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v0.8.0)
3. [Release 0.8.1. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v0.8.1)
4. [Release 0.8.2. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v0.8.2)
5. [Release 0.9.0. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v0.9.0)
6. [Release 1.0.0. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.0.0)
7. [Release 1.1.0. 2019](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.1.0)
8. [Release 1.2.0. 2020](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.2.0)
9. [Release 1.2.1. 2020](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.2.1)
10. [Release 1.2.2. 2020](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.2.2)
11. [Release 1.2.3. 2020](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.2.3)
12. [Release 1.2.4. 2020](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.2.4)
13. [Release 1.3.0. 2021](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.3.0)
14. [Release 1.4.0. 2021](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.4.0)
15. [Release 1.4.1. 2021](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.4.1)
16. [Release 1.4.2. 2021](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.4.2)
17. [Release 1.4.3. 2022](https://github.com/OpenImageDenoise/oidn/releases/tag/v1.4.3)
18. [Release 2.0.0. 2023](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.0.0)
19. [Release 2.0.1. 2023](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.0.1)
20. [Release 2.1.0. 2023](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.1.0)
21. [Release 2.2.0. 2024](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.2.0)
22. [Release 2.2.1. 2024](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.2.1)
23. [Release 2.2.2. 2024](https://github.com/OpenImageDenoise/oidn/releases/tag/v2.2.2)
24. [Release 2.3.0. 2024](https://github.com/RenderKit/oidn/releases/tag/v2.3.0)
25. [Release 2.3.1. 2024](https://github.com/RenderKit/oidn/releases/tag/v2.3.1)
26. [Release 2.3.2. 2025](https://github.com/RenderKit/oidn/releases/tag/v2.3.2)
27. [Release 2.3.3. 2025](https://github.com/RenderKit/oidn/releases/tag/v2.3.3)
28. [Release 2.4.0. 2026](https://github.com/RenderKit/oidn/releases/tag/v2.4.0)
29. [Release 2.4.1. 2026](https://github.com/RenderKit/oidn/releases/tag/v2.4.1)