Calman vs OpenColorIO

Calman is display calibration software for measuring, adjusting, and verifying display performance. Its Home editions are aimed at home theater use and support automated calibration on supported displays: users work with reference patterns and a colorimeter, and the software adjusts the TV based on the measurements. Calman Studio adds automated SDR and HDR calibration, ICC profiling, 1D and 3D LUT creation, and display validation wizards. Ultimate supports customizable workflows and reports, automated calibration, 3D LUT creation, and multi-display environments such as LED walls. Calman supports measurement devices and pattern generators, with workflows for displays from ASUS, BenQ, Dell, LG, Panasonic, Samsung, and Sony. Home editions for supported brands cost $249 as a one-time purchase. Studio costs $1,199, paid once, while Ultimate costs $2,995, paid once; both require Windows 10 or later and include one year of software updates and technical support. Continued Studio and Ultimate updates and support can be renewed through All Access: $549 a year for Studio or $849 a year for Ultimate. Display compatibility varies by model, and not every variation is supported.

OpenColorIO is a free color management solution for motion picture production, particularly visual effects and computer animation. It supports artists managing color, studios integrating color management into pipelines, and developers building or upgrading color management frameworks. Its Python API can connect a studio pipeline or modify a configuration. Config merging is in preview, with controls for name and alias conflicts and duplicate color spaces. The GPU renderer supports the Khronos Vulkan graphics API, and the project describes ACES 2.0 support as feature complete, including ACES 2.0 Output Transforms as OCIO views. OpenColorIO also supports Color Interop ID and attributes for ICC and AMF. Listed integrations include Blender, Autodesk Maya, Houdini, Nuke, Photoshop, and Unreal Engine, with some version requirements, including Blender 2.64 and up, Maya 2016 and up, and Unreal Engine 4.22 and up. It is available as an API and for Linux, macOS, and Windows under the BSD-3-Clause license. Prebuilt libraries are available through package managers; Python bindings and command-line tools can be installed from PyPI.