ColourMeister - Colour spaces

    The RGB colour-space can be mapped (calibrated) to the CMYK colour-space leaving the separation to CMYK as the last step in the proofing system. However, when RGB is mapped into the CMYK colour-space, colour conversion tables come into play.
    Quark, Illustrator and Photoshop will all convert RGB colour data to a CMYK output device with variations in the results. This is due to each software package using different colour conversion tables and formulas. When supplying an outside print provider with RGB data,
their separation software will convert the RGB data to CMYK data. Therefore mapping the translation of colour data relative to the print provider is needed for calibration before workflow of colour correction can begin.
    Mapping this workflow would begin by referencing the CMYK_MCT and CMYK_CRT and separately referencing the RGB_MCT, RGB_CRT, HSB_CRT and LAB_CRT on the best calibrated devices (Chemical, composite-proof and or press) within the business network.
    In the case of a poster printer used for printing the finished product, this would require a primary calibration to the RGB colour-space as it is capable of printing more colours than the CMYK press can offer. A secondary calibration can be made to the same printer – calibrating it to the CMYK colour-space to proof press conditions while also providing a final poster, without altering same image printed on the press. (i.e. poster print of the front cover of a book)