Graeme Gill

Graeme Gill is an independent software developer and color-science specialist whose single, tightly focused project, Argyll CMS, has become a reference implementation for open-source color management. The suite bundles more than a dozen command-line utilities—dispread, dispcal, chartread, colprof, collink, xicclu, and others—that together cover the entire ICC workflow: emission, reflection and transmission measurement; calibration and profiling of monitors, scanners, cameras, and printers; verification of color accuracy; creation of device-link and abstract profiles; and batch conversion of image files. Typical use cases include profiling a photo printer to match screen output, validating a medical display against DIN or AAPM standards, linearizing a flexographic press, or building a camera-input profile for scientific imaging. Because every stage is scriptable, Argyll CMS is embedded in commercial RIPs, Linux photography distributions, and university research pipelines, yet it remains compact enough for individual photographers who need a free alternative to proprietary hardware bundles. The codebase supports all common spectrophotometers, colorimeters, and spectroradiometers through a built-in USB and HID driver layer, and it tracks the latest ICC specification, including support for version 4.4 and spectral data tagging. Graeme Gill releases updated binaries for Windows, macOS, and Linux several times a year, accompanied by exhaustive documentation that explains the underlying algorithms and measurement protocols. Argyll CMS is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always installing the newest release and allowing batch installation alongside other color-critical tools.