Esko-graphics A/s

Agfa-bevaert N.v.

Kristiaan K A Van Bael

Wim Geurts

Wim J C Fransen

A method for representing a digital image in an extended CMYK color space that has an extended color gamut. The image is for output to an output device that uses a set of more than four colorants and is capable of reproducing the extended color gamut. The method includes providing a transformation from the extended CMYK color space to amounts of each of the set of colorants of the output device, providing a device profile for the extended CMYK color space that is associated with the transformation and that provides for converting a first color represented by a first set of color coordinate values in a first color space into a set of CMYK values in the extended CMYK color space such that the output device behaves as if it was a CMYK device with the extended CMYK values, and representing the digital image in the extended CMYK color space.

Color matching for a printing process using more than four colorants using a four-colorant color management system

A method, apparatus, and product to generate trap areas. One embodiment is a method for generating a trap pixel of a trap area surrounding one or more trapping edges of an image that includes, for each trapping edge in the image, and for each pixel within a predefined area around the trapping edge, comparing the distance of the pixel from the trapping edge according to a distance measure with a provided measure indicative of the distance of the pixel from any edge of the image to determine if said each pixel is closer to the trapping edge than to another edge. The method further includes, if said pixel is closer to said edge than to any edge, setting the pixel as a trap pixel of the trap area, including setting a trap color for the trap pixel.

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Hasselt, Belgium

Kristiaan K A Van Bael