Increasing digital prepress operations have prompted us to automate the conversion of data from one gamut space to another. However, the gamut space conversion must incorporate many replication variables, at least including printing methods, dot gain, ink, and paper. The reason why the definition of accurate color conversion for ordinary prepress software is hard and skilled enhancer is mainly because the prepress software lacks the automatic function. Especially in catalogues and advertising products, print preparations are often completely reworked from manuscripts.
In the traditional offset to gravure conversion, standard offset data is processed for gravure printing. However, even internal standards, such as the gravure printing standard, presuppose color conversion, thereby ensuring that image data obtained from different providers have a consistent color appearance.
Use GMG FileOut can have strong printability
GMG FileOut also improves the suitability of the pressroom, just as a variety of input color space spaces can be converted to a simple standard. FilrOut can also instantly change a different output gamut space. Pre-prepared work for unique presses/printing processes/ink/paper/printing conditions can be instantly converted to different color accuracies under different printing conditions. This rapid transition means that you have better adaptability to adapt to the customer's last minute change and adapt to your print schedule. GMG FileOut is an important element in the standard and efficiency of print processing.
Use ICC color management for color conversion to get different print results
Another method for color conversion is the ICC Profile. As a guideline, ICC profile doesn't get the results you expect. The tristimulus value used by CIELab to convert gamut space used in this process lacks the black channel (four-color) required for accurate color conversion.
GMG's four-dimensional color management guarantees an ideal printing effect
GMG FileOut was developed by GMG in cooperation with European gravure printing companies. It is based on GMG's four-dimensional color management. In this software, the original value and the target value are calculated directly in CMYK—without using the Lab value. This means that the black channel characteristics of the original data are always kept in a very balanced conversion, and the target CMYK color space space ensures that the visual image in printing is still ideal.
Automatically create GMG FileOut profile (color management document)
The GMG FileOut profile is generated by the software on the basis of copies of reference samples or prints of the respective original and target gamut spaces. The profile file is automatically generated using repeated, spectrophotometric measurements.
Support PDF format
Once the profile file is created, the gamut space conversion is fully automated via the hot folder. Various hot folders are installed with different gamut spaces or data formats. On the output side, GMG FileOut supports PDF, TIFF, TIFF-IT, All-in-CT, and CT/LW data formats.
Save costs by promoting work processes
In addition to unsurpassed quality, the important advantage of GMG FileOut is that it greatly facilitates the work process and is fully automated, relying on very accurate, high-speed color conversion supported by the folding machine technology. The result is huge and continuous cost savings.
Source: Coinprint
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