ArgyllCMS vs PatternSpace

ArgyllCMS is a free, open-source ICC-compatible color management system for creating profiles and calibrating devices. Its command-line tools support scanners, cameras, film recorders, displays, and RGB, CMY and CMYK printers. It can create device-link profiles with options such as video calibration standards and 3D LUTs, and work with spectral samples, selectable illuminants and observer types, and paper fluorescent-whitener compensation. Color conversion tools handle 8-bit raster data and fully accurate 16-bit conversion. Documentation lists direct support for measurement instruments from JETI, Klein, X-Rite and Calibrite, DataColor and other manufacturers; some chart results can be converted into Argyll CGATS format. ArgyllCMS runs on Windows, macOS and Linux, but does not include a graphical interface. DisplayCAL, The Little Argyll GUI and CoCa are listed as front ends that use it. The package is licensed under AGPLv3; commercial licensing is available for code copyrighted by Graeme Gill through ArgyllPRO. On Linux, native display calibration and profiling under Wayland are not currently supported; the maker recommends X11 for color-managed displays.

PatternSpace is a macOS app for generating test patterns used in display calibration. It creates SDR and HDR patches, pattern grids, clipping checks, gamma tools, and color swatches. Its library contains more than 100 GPU-rendered patterns in Color, Checks, Geometry, Swatch, Gamma, and Clipping categories. Rendering uses a Metal EDR pipeline with up to 16-bit-per-channel output and patches locked to display refresh timing. It works with connected internal or external displays and requires macOS 15.6 or later on Apple Silicon or Intel Macs. The free plan includes 100+ patterns and 14 SDR reference presets; PatternSpace Pro costs $39.99, paid once and adds calibration integrations, unlimited Remote rendering, advanced HDR, and LUT and ICC export. DeckLink SDI Output is a separate $39.99, paid once and requires compatible Blackmagic hardware and Desktop Video 16.4.x. PatternSpace supplies patches but does not measure or automatically correct a display; display accuracy requires measurement hardware.