Gretag Imaging Trading Ag

Armin K&uuml;ndig

Adrian Kohlbrenner

Guido Keller

Dieter Franzke

Stephan Waldner

The invention relates to a process for automatically determining the image quality of inkjet photo printers or color inkjet photo printers, whereby a digital reference test chart is produced which is made available to the printer. The printer or photo printer prints out the reference test chart so that a photo printer specific printout of the reference test chart is generated, which is digitized for comparison of the digitized image data with an optimum digital reference test chart, for determination of the image quality of the printed image on the basis of deviations or concurrences between the photo printer specific test chart printout and the reference test chart.

Automatic image quality determination

A process for the reduction of artefacts during the reproduction of an image based on image data and having a plurality of image points, by a specific image reproducing device is disclosed, whereby the image points have appearance properties, the process including the following steps: device characteristics which describe the appearance properties of image points produced by the specific image reproducing device in answer to image data and describe the dependence of the appearance properties on the position assigned to the image data, are provided or input, reproduction image data are input, and the image data corrected based on the device characteristics and depending on the positions assigned to the image data.

Growing community of inventors

Zurich, Switzerland

Armin Kündig

Growing community of inventors

Zurich, Switzerland

Armin K&uuml;ndig

Armin Kündig