Ocjenjivanje razine kontrole pri kalibraciji RGB uređaja

Grafički reprodukcijski uređaji kalibriraju se s ciljem poboljšanja performansi i dovođenja u poznato stanje. Postoji mnogo metoda razvijenih za reprodukcijske uređaje koji pružaju izravnu kontrolu nad svojim bojilima (CMYK). Uređaji bez izravne kontrole nad svojim bojilima ne kalibriraju se te stoga pružaju manju točnost u pogledu reprodukcije boja. U ovome radu istražene su mogućnosti kalibracije takvih uređaja, to jest razina kontrole koju je nad njima moguće uspostaviti. Za tu su svrhu preuzeti principi postojećih metoda kalibracije, a metoda određivanja ciljanih vrijednosti je modificirana i proširena. Evaluacijom je utvrđeno da su postignuta poboljšanja u odnosu na nekalibrirani uređaj, ali i da je potrebno dodatno istraživanje s obzirom da se proces pokazao nekontroliranim u nekim aspektima.
Colour reproduction devices are calibrated with the aim of maximizing their performance and setting them in a known state. Many calibration methods have been developed for colour reproduction devices which provide direct control over their colorants’ amounts (CMYK devices). Devices with no direct control over their colorants’ amounts are normally not calibrated and are therefore less accurate regarding the colour reproduction. This paper investigates the possibilities of calibrating such devices, i.e. the level of control that can be established over them. For that purpose, basic principles of the existing calibration methods were taken, but the method of determining the aimed values was modified and extended with novelties. The evaluation showed that this attempt did result in some improvements, however, should be studied more carefully as it was revealed that the process was uncontrolled in some aspects.