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(v13) Calibration

This page applies to Harlequin v13.1r0 and later; both Harlequin Core and Harlequin MultiRIP.

The RIP provides three methods for linearizing grayscales in addition to the standard transfer functions.

Because jobs use transfer functions for their own purposes, it is not possible to rely on being able to use them for calibration independently of the job. In turn, this means that calibration in graphic arts and page make-up applications should not be used: its effects would be added to those of the linearization in the RIP, producing the wrong results. Because some jobs use transfer functions for their own purposes, correct behavior is achieved in almost all cases if the transfer functions arising from settransfer, setcolortransfer and from halftone dictionaries are applied to the "input" job color space rather than the "output" device color space. This is the default behavior for the RIP.

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