US 10,944,890 B2Granted

Information processing apparatus, method and storage medium that generate color matching information and line width correction information

AssigneeCanon Kabushiki Kaisha

InventorsOkinori Tsuchiya, Kouta Murasawa, Tatsuhiro Yamagata, Yugo Mochizuki, Toshiki Miyazaki, Masao Kato

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Abstract

An information processing apparatus includes a first acquisition unit to acquire a first color reproduction characteristic indicating first color reproduction color values that indicate a color obtained by reproducing color values by a first printing apparatus, a second acquisition unit to acquire a second color reproduction characteristic indicating second reproduction color values that indicate a color obtained by reproducing color values by a second printing apparatus, a first generation unit to generate color matching information when color matching is performed between the first and second printing apparatuses based on the first and the second color reproduction characteristics, a third acquisition unit to acquire a first line width characteristic of the first printing apparatus, a fourth acquisition unit to acquire a second line width characteristic of the second printing apparatus, and a second generation unit to generate line width correction for correcting an input line width for the second printing apparatus.

Claims23

Dependent claims

An information processing apparatus comprising:

one or more processors and at least one memory, wherein the one or more processors according to an instruction stored in the at least one memory is configured to function as:
a first acquisition unit configured to acquire a first color reproduction characteristic indicating a first plurality of reproduction color values for each of a plurality of color values, the first plurality of reproduction color values indicating a color obtained by reproducing the plurality of color values by a first printing apparatus;
a second acquisition unit configured to acquire a second color reproduction characteristic indicating a second plurality of reproduction color values for each of the plurality of color values, the second plurality of reproduction color values indicating a color obtained by reproducing the plurality of color values by a second printing apparatus;
a first generation unit configured to generate color matching information used in a case when color matching is performed between the first printing apparatus and the second printing apparatus based on the first color reproduction characteristic and the second color reproduction characteristic;
a third acquisition unit configured to acquire a first line width characteristic of the first printing apparatus by printing a line width determination chart by the first printing apparatus;
a fourth acquisition unit configured to acquire a second line width characteristic of the second printing apparatus by causing the second printing apparatus to print the line width determination chart with the color matching information;
and
a second generation unit configured to generate line width correction information for correcting an input line width for the second printing apparatus based on the first line width characteristic and the second line width characteristic.

5 more elements

A method comprising:

a step of acquiring a first color reproduction characteristic indicating a first plurality of reproduction color values for each of a plurality of color values, the first plurality of reproduction color values indicating a color obtained by reproducing the plurality of color values by a first printing apparatus;
a step of acquiring a second color reproduction characteristic indicating a second plurality of reproduction color values for each of the plurality of color values, the second plurality of reproduction color values indicating a color obtained by reproducing the plurality of color values by a second printing apparatus;
a step of generating color matching information used in a case when color matching is performed between the first printing apparatus and the second printing apparatus based on the first color reproduction characteristic and the second color reproduction characteristic;
a step of acquiring a first line width characteristic of the first printing apparatus by printing a line width determination chart by the first printing apparatus;
a step of acquiring a second line width characteristic of the second printing apparatus by causing the second printing apparatus to print the line width determination chart with the color matching information;
and
a step of generating line width correction information for correcting an input line width for the second printing apparatus based on the first line width characteristic and the second line width characteristic.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/580,248Filed 24 Sep 2019
Priority: JP JP2018-18191427 Sep 2018
Published: US 2020/0106927 A12 Apr 2020
Granted: 9 Mar 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04N 1/6055
Matching two or more picture signal generators or two or more picture reproducers: using test pattern analysis
H04N 1/6025
Generating a fourth subtractive colour signal, e.g. under colour removal, black masking: using look-up tables
H04N 1/6027
Colour correction or control: correction or control of colour gradation or colour contrast
H04N 1/6052
Controlled by characteristics of the picture signal generator or the picture reproducer: matching two or more picture signal generators or two or…