Hewlett-packard Development Company, L.p.

Juan Manuel Garcia Reyero Viñas

Jan Morovic

Peter Morovic

Paolo Faraboschi

Utpal Kumar Sarkar

Xavier Farina Vargas

Alejandro Manuel De Peña Hempel

A color image is processed into a renderable image. The color image comprises a plurality of pixels. Each pixel has colorimetry defined in a first color space. The renderable image comprises a plurality of renderable pixels defined by a device-vector in a second color space. For each pixel: a device-vector defined in the second color space is selected () based on the colorimetry defined in a first color space of the pixel. The device-vector comprises a plurality of elements. Each element includes an identifier and an accumulated weighting. An element of the selected device-vector is reselected () until the accumulated weighting (a) is greater than a threshold value (t) associated with the pixel (). The levels for each color of the second color space (or mappings) for the currently selected () element of the selected device-vector is determined () to convert the pixel into a renderable pixel.

Processing color image of first color space into renderable image of second color space

Certain methods and systems are described to provide color modelling. This color modelling applies to halftone images. In one example, a correction parameter for a color model is determined by minimizing a distance metric between a set of estimated spectral reflectance values and a set of measured spectral reflectance values to generate a multi-dimensional correction parameter. This enables a color model to be used to map at least one Neugebauer Primary area coverage value to at least one spectral reflectance value.

Printing process and printing system to display print preview with updated color model

The present disclosure relates to a computer implemented method for color separation for a printer, systems, and methods for printing using a printer. In some examples, the method for color separation for a printer comprises

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Sant Cugat del Valles, Spain

Juan Manuel Garcia Reyero Viñas