EP 3516634 A1 20190731 - METHOD AND DEVICE FOR DETECTING COLOR FADING ON A VALUE DOCUMENT, IN PARTICULAR A BANKNOTE, AND VALUE-DOCUMENT PROCESSING SYSTEM
Title (en)
METHOD AND DEVICE FOR DETECTING COLOR FADING ON A VALUE DOCUMENT, IN PARTICULAR A BANKNOTE, AND VALUE-DOCUMENT PROCESSING SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG VON FARBABNUTZUNGEN AN EINEM WERTDOKUMENT, INSBESONDERE EINER BANKNOTE, SOWIE WERTDOKUMENTBEARBEITUNGSSYSTEM
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTECTION DÉGRADATIONS DE COULEURS SUR UN DOCUMENT DE VALEUR, EN PARTICULIER UN BILLET DE BANQUE, AINSI QUE SYSTÈME DE TRAITEMENT DE DOCUMENTS DE VALEUR
Publication
Application
Priority
- DE 102016011417 A 20160922
- EP 2017001091 W 20170913
Abstract (en)
[origin: CA3035917A1] The invention relates to a method for detecting color fading on a value document, in particular a banknote, on the basis of a captured image (4) of the value document, which image has a plurality of pixels, each pixel being assigned at least one intensity value (Pi), wherein the following steps are performed for each pixel of a selection of pixels of the image (4): determining an intensity value, in particular a mean, from intensity values (P0 - P8) assigned to the pixel and to pixels near the pixel; calculating a contrast value on the basis of intensity values (P0 - P8) assigned to the pixel and to pixels near the pixel; and classifying the pixel with respect to color fading of the value document (1) in accordance with the determined intensity value, in particular mean, and the calculated contrast value. The invention further relates to a corresponding device and to a value-document processing system.
IPC 8 full level
G07D 7/187 (2016.01); G07D 7/12 (2016.01)
CPC (source: EP)
G07D 7/12 (2013.01); G07D 7/187 (2013.01)
Citation (search report)
See references of WO 2018054529A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102016011417 A1 20180322; AU 2017332227 A1 20190418; AU 2017332227 B2 20200604; CA 3035917 A1 20180329; CA 3035917 C 20210216; EP 3516634 A1 20190731; EP 3516634 B1 20221109; WO 2018054529 A1 20180329
DOCDB simple family (application)
DE 102016011417 A 20160922; AU 2017332227 A 20170913; CA 3035917 A 20170913; EP 17772608 A 20170913; EP 2017001091 W 20170913