Project Release Information
This release adds Spyder4 support. Experimental ColorHug support is compiled in, but is disabled unless the environment variable "ENABLE_COLORHUG" is set. The display selection (-y flag) has been changed and expanded to be instrument-specific to support Spyder4 and ColorHug. This release tweaks i1d3 integration times and adds accurate refresh period calibration to the refresh display mode. It changes i1disp measurement logic to try and make it more robust against light to dark changes during a reading.
Support for X-Rite i1 Display Pro and ColorMunki Display colorimeters (i1d3), and numerous tweaks, improvements, and bugfixes.
Numerous minor bug fixes and feature enhancements were made. A perceptual and saturation rendering (CIECAM02) problem that caused a white point mismatch and poor blue hue was fixed.
A new ccmxmake utility was added to make Colorimeter Correction Matrices (.ccmx) for a particular Colorimeter + Display combination, which can then be used with spotread, dispcal, and dispread. A new dispcal and dispread option that attempts to counteract instrument black drift and display white drift was added. Several bugs were fixed, including problems with the Eye-One Pro and ColorMunki drivers.
Gamut mapping was improved. MS Windows 64-bit USB driver support was added. The illumread tool was added for reading illuminant U.V. for improved FWA (OBA) compensation. Minor bug fixes and improvements were done.
Argyll is an ICC compatible color management system. It supports accurate ICC profile creation for scanners, CMYK printers, and film recorders, and calibration and profiling of displays. Spectral sample data is supported, allowing a selection of illuminants observer types, and paper fluorescent whitener additive compensation. Profiles can also incorporate source specific gamut mappings for perceptual and saturation intents. Gamut mapping and profile linking uses the CIECAM02 appearance model, a unique gamut mapping algorithm, and a wide selection of rendering intents. It also includes code for a fast 8-bit raster color conversion engine as well as support for fast, fully accurate 16-bit conversion. Device color gamuts can also be viewed and compared using a VRML viewer.