EP 1963103 A1 20080903 - METHODS FOR EVALUATING AND IMPROVING PRINT QUALITY
Title (en)
METHODS FOR EVALUATING AND IMPROVING PRINT QUALITY
Title (de)
VERFAHREN ZUR BEWERTUNG UND VERBESSERUNG VON DRUCKQUALITÄT
Title (fr)
PROCEDES D'EVALUATION ET D'AMELIORATION DE LA QUALITE D'IMPRESSION
Publication
Application
Priority
- FI 2006050573 W 20061221
- FI 20051312 A 20051221
Abstract (en)
[origin: WO2007071826A1] The invention relates to a method for determining the quality of print quality. In the method, a first digital image, which represents the intended print quality in the graphical product, and a second digital image, which represents the achieved or planned print quality of the graphical product, are taken. After this, a variable proportional to the magnitude of the difference in the colour values of at least some image elements corresponding to each other in the image plane of the first and second digital images, is calculated, and on the basis of the variable, the similarity of the colour worlds of the first and second images is estimated. The invention permits the objective comparison of images, particularly in the development of print quality and in claims situations.
IPC 8 full level
B41F 33/00 (2006.01); H04N 1/60 (2006.01)
CPC (source: EP FI)
B41F 33/0036 (2013.01 - EP FI); B41J 2/525 (2013.01 - FI); H04N 1/6027 (2013.01 - FI); H04N 1/6033 (2013.01 - EP); H04N 1/608 (2013.01 - FI)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007071826 A1 20070628; EP 1963103 A1 20080903; FI 20051312 A0 20051221; FI 20051312 L 20070622; RU 2008128476 A 20100127
DOCDB simple family (application)
FI 2006050573 W 20061221; EP 06830946 A 20061221; FI 20051312 A 20051221; RU 2008128476 A 20061221