New software for comparing the color gamuts generated by printing technologies
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AuthorLópez Baldomero, Ana Belén; Rubiño López, Antonio Manuel; Ortiz Herrera, Carolina; Salas Hita, Carlos María
Color printing gamutGamut volumeColor gamut evaluationColor gamut visualizationGamut Comparison IndexColor reproductionColor printing technology
Ana Belén López-Baldomero... [et al.]. New software for comparing the color gamuts generated by printing technologies, Optik, Volume 261, 2022, 169194, ISSN 0030-4026, [https://doi.org/10.1016/j.ijleo.2022.169194]
SponsorshipOptics Group (University of Granada) FQM151; University of Granada/CBUA
In the color industry, it is vital to know the color gamut of a given device. Several tools for visualizing and comparing color gamuts are available but they each have some drawbacks. Therefore, the aim of this work was to develop and validate new software for comparing the color gamuts generated by printing devices; we also developed an automated color measurement system. The software simultaneously represents the gamuts in the 3D CIELAB space. It also calculates the Gamut Comparison Index and the volume using two algorithms (Convex Hull and Alpha Shapes). To evaluate the performance of our software, we first compared the results it obtained for the color gamuts with those from other comparison methods such as representation in the CIE 1931 chromaticity diagram or other color spaces. Next, we used Interactive Color Correction in 3 Dimensions (ICC3D) software to compare the gamut representations and volumes. Our software allowed us to identify differences between color gamuts that were not discriminated by other methods. This new software will enable the study and comparison of gamuts generated by different printing technologies and using different printing substrates, International Color Consortium profiles, inks, and light sources, thereby helping to achieve high quality color images.
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