Curve Software Family
In 2006, IDEALliance, the umbrella organization for both GRACoL and SWOP, and Don Hutcheson, the source of the current G7 technique and mathematics, chose CHROMiX to write a software package to streamline and simplify the application of the G7 method. This software package became IDEALink Curve, and was first announced in June of 2006. The final version of IDEALink Curve, version 1.1, was released on June 30, 2008 .
Most of the information about the IDEALink Curve software can be found at the CHROMiX website including downloads of the most recent version of the software: https://www.chromix.com/idealink
The manual for the IDEALink Curve is in a pdf that is downloaded with the software.
This wiki also contains a small addenda page describing the ISO colors used in IDEALink Curve.
CHROMiX continues to maintain a ColorForums site specifically for Curve software products:
In February of 2010, Curve2 was released as a joint-development between CHROMiX and HutchColor.
Curve2 replaced the existing IDEALink Curve software. Like IDEALink Curve, Curve2 is primarily designed for calculating G7 calibration curves, but made use of completely new core algorithms to gain higher precision.
Curve2 has been discontinued in favor of Curve3.
Curve2 software can still be downloaded from the CHROMiX website:
Some of the 50 new functions and features were:
- basic pre-qualification tools that verify ink and paper colors,
- conformance metrics for NPDC and gray balance,
- introduction of a new document format capable of holding a series of related press runs in one single file,
- new graphs and graphing tools such as integrated zoom, pan and graph expansion,
- new export options including Device Link profiles, Photoshop(tm) curves, text files and RIP configuration files,
- ability to calculate ISO-standard TVI curves instead of G7 curves.
- version 2.1 introduced the OneRun target capability
See the ColorWiki page for more information on using the OneRun targets in Curve2.
In April of 2013, Curve3 was released as an update to Curve2.
Curve3 improved many existing functions of Curve2 and introduced more new features to fit special needs. In addition to calculating G7 calibration curves, Curve3 can calibrate using TVI curves, calibrate special inks (besides CMYK) has a new smoothing algorithm and can use a custom starting point calibration.
Some of the new features are:
- 4-dimensional data smoothing cleans up challenged systems
- Spectral VPR now applies curves to full-spectral data
- Enhanced black-point options for ink-jet and digital needs
- Normalizing Curves to improve shadow smoothness
- Custom TVI calibration (mostly for European users)
- Intelligent error-reporting and resolution
- User-specified starting-point calibration
- User-defined Control Point lists
- Expanded graphs and reports
- A new "Demo" mode
- Outputs to more RIPs: Rampage, Harlequin, Fuji, AGFA, EFI, HP Indigo, Konica Minolta, Tucanna, Xerox and PressSync Curves.
The software package can be downloaded at no charge from the CHROMiX website, but authorization codes need to be purchased before the user can run it: https://www.chromix.com/curve3
See this ColorWiki page for more information on using the OneRun targets in Curve2 and Curve3.
The Manual for Curve3 is a pdf document downloaded with the software package, but can also be accessed online at Hutchcolor.com: