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1. WO2020112124 - REPLACING MACHINE READABLE GRAPHIC CODE PIXELS WITH PREDEFINED COLOR

Publication Number WO/2020/112124
Publication Date 04.06.2020
International Application No. PCT/US2018/063164
International Filing Date 29.11.2018
IPC
G06K 19/06 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
H04N 1/60 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
CPC
G06K 19/06
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
H04N 1/60
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
H04N 1/62
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
56Processing of colour picture signals
60Colour correction or control
62Retouching, i.e. modification of isolated colours only or in isolated picture areas only
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • AMIR, Gideon
Agents
  • PERRY, Garry
  • DIERKER, Julia Church
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REPLACING MACHINE READABLE GRAPHIC CODE PIXELS WITH PREDEFINED COLOR
(FR) REMPLACEMENT DE PIXELS DE CODE GRAPHIQUE LISIBLE PAR MACHINE COMPRENANT UNE COULEUR PRÉDÉFINIE
Abstract
(EN)
In an example, a method includes receiving, at a processor, a digital version of an image combined with a machine readable graphic code. For a predefined color, a distance in color space between the predefined color and each pixel of the combined image and graphic code may be determined. At least one pixel of the combined image and graphic code may be selectively replaced, wherein the selection is based on the magnitude of the determined distance in color space, such that a first pixel with a smaller determined distance is replaced with a pixel having the predefined color and a second pixel having a larger determined distance is not replaced.
(FR)
Dans un exemple, la présente invention concerne un procédé comprenant la réception, au niveau d'un processeur, d'une version numérique d'une image combinée avec un code graphique lisible par machine. Pour une couleur prédéfinie, une distance dans l'espace colorimétrique entre la couleur prédéfinie et chaque pixel de l'image combinée et du code graphique peut être déterminée. Au moins un pixel de l'image combinée et du code graphique peut être remplacé sélectivement, la sélection étant basée sur l'étendue de la distance déterminée dans l'espace colorimétrique, de telle sorte qu'un premier pixel présentant une distance déterminée inférieure est remplacé par un pixel comprenant la couleur prédéfinie et qu'un second pixel présentant une distance déterminée supérieure n'est pas remplacé.
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