RGB color output processing

In the prepress separation output operation, some prepress production and art designers who do not understand the requirements of the printing process often encounter graphics or images using RGB mode in PS or PDF documents. Front output processing has brought difficulties. Correctly processing the color of the RGB pattern in the output document is an important operation for prepress output.

Existing RIP output software or digital output process software provides methods for processing RGB mode colors. By setting the parameters of the output software, the color separation output result of the RGB mode color can be controlled better, and the color restoration can be guaranteed as much as possible. In the output of color separation of RGB color, there is often a case where there is no color separation data in the black version, and this problem can be solved in output software such as RIP.

First, Harlequin RIP output software RGB color processing

In the Harlequin RIP software, there are two cases of RGB color processing, namely RGB color separation processing method without opening the Color Management function (No Color Management), and RGB using Harlequin's color management function (Harlequin ColorPro). Color separation processing.

1. RGB color processing without color management

Since the Harlequin RIP's color management feature requires the purchase of an additional color management function module, the color management function may not be available in some output units using the Harlequin RIP software. In the case of No Color Management, it is also possible to simply set a method for controlling the color separation of the RGB mode when processing the RGB mode color.

2. Use Harlequin ColorPro's RGB color processing

If the color management function (Color Pro) has been turned on in the Harlequin RIP, a color separation control curve may be added to control the processing of the RGB mode color.

Second, Agfa Apogee digital output system RGB color processing

In the digital output flow system, the processing method for the RGB mode is more perfect. Taking the Apogee process system as a column, there are more detailed settings available for operation in the color separation module. In Apogee's color rendering component PDF Render, its color separation settings can be set for different color modes, for different situations of graphics and images.

For graphics or image elements in the document, if you include ICC profiles for processing, you can choose not to use the built-in profile and use the built-in profile to operate, or you can specify a default profile for processing in the process.

The target profile for the output document (ie CMYK color profile) can be set in the print component of the output job.

Apogee's digital flow system allows the use of personalized profiles for operators to use in the system. Color management can be performed for each color-related component. Its powerful output color management function can better ensure targeted processing of different color modes and spot colors in the output process to achieve the best output.

At present, graphic designers and designers are not likely to have a good understanding of the process characteristics of printing, and they will encounter some documents that do not meet the requirements when they export jobs. The output of these documents must be careful. The best way is to communicate and communicate with the producer to solve issues such as the use of RGB colors to avoid unnecessary trouble.