Two-color thermal printing process

Details Two-color thermal printing process Two-color thermal printing process

B - Operations, Transporting

41

J

B41J 2/315 (2006.01) B41J 2/36 (2006.01) B41J 2/525 (2006.01)

Patent

CA 2399042

A method for improving the image quality of a thermal print image uses preprocessed image and color matrices, in which special combinations of black dots and black dot patterns are filtered out. These patterns are then replaced with printer-friendly patterns. This altering technique improves the image quality and reduces halo effects.

Cette invention concerne un procédé servant à améliorer la qualité de l'image d'une image à impression thermique et faisant appel à des matrices image et couleur prétraitées, selon lequel des combinaisons particulières de points noirs et de motifs de points noirs sont sélectivement filtrées. Ces motifs sont ensuite remplacés par des motifs faciles à imprimer. Ce nouveau procédé permet d'améliorer la qualité de l'image et de réduire les bourrelets d'encre.

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