US20070291311A1
Active / In Force
US
⏱️ 0.6 years remaining
Image processing apparatus and printing apparatus
Assignee: Canon Inc
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Filing: 2007-06-15
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Granted: —
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Expires: 2027-06-15
Abstract
Abstract To provide a prepared color separation table for an inkjet printing apparatus that suppresses unevenness due to differences in the color of regular reflected light when a printing medium surface used for printing pigment-based inks is irradiated with light and which can output a high quality image. It is a printing apparatus that can carry out printing using recording materials and when reproducing a color of a predetermined color region using numerous types of the said recording materials with different regular reflected light colors it uses at least one type of the recording materials over the entire area in the predetermined color region.
Inventors
- 👤 Fumiko Yano
- 👤 Hitoshi Nishikori
- 👤 Daisaku Ide
- 👤 Takeshi Yazawa
- 👤 Jun Yasutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:16
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6083; H04N1/6088; H04N1/6097; G06K2215/00; G06K2215/0082; G06K2215/0094
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
55 words
1 . A printing apparatus for carrying out printing using recording materials, wherein at least one type of the recording materials is used over the entire area within a predetermined color region when reproducing the predetermined color region using a plurality of types of the recording materials which have different colors of regular reflected light.
Claim 2
Dependent Claim
55 words
1 . A printing apparatus for carrying out printing using recording materials, wherein at least one type of the recording materials is used over the entire area within a predetermined color region when reproducing the predetermined color region using a plurality of types of the recording materials which have different colors of regular reflected light.
Claim 3
Dependent Claim
100 words
2 . An image processing apparatus; comprising a processing means for carrying out processing for determining respective amounts of respective recording materials used in reproducing a color defined by color signals, wherein the processing means determines the respective amounts of the respective recording materials used to reproduce the color defined by the color signal in a predetermined color region so that at least one type of the recording materials is used over the entire area of the predetermined color region in which a plurality of types of the recording materials with different regular reflected light colors are used for reproduction.
Claim 4
Dependent Claim
100 words
2 . An image processing apparatus; comprising a processing means for carrying out processing for determining respective amounts of respective recording materials used in reproducing a color defined by color signals, wherein the processing means determines the respective amounts of the respective recording materials used to reproduce the color defined by the color signal in a predetermined color region so that at least one type of the recording materials is used over the entire area of the predetermined color region in which a plurality of types of the recording materials with different regular reflected light colors are used for reproduction.
Claim 5
Dependent Claim
47 words
3 . The image processing apparatus according to claim 2 , wherein the regular reflected light colors are calculated based on the intensity of the regular reflected light obtained by measuring the regular reflected light and are expressed by the a*b* values in a Lab color space.
Claim 6
Dependent Claim
19 words
4 . The image processing apparatus according to claim 2 , wherein the color signal is an RGB signal.
Claim 7
Dependent Claim
75 words
5 . The image processing apparatus according to claim 2 , wherein the plurality of types of recording materials include achromatic color recording material and chromatic color recording material and the predetermined color region is a color region between the maximum concentration point due to the chromatic color recording material and the maximum concentration point due to the achromatic color recording material, and one type of the recording materials is the chromatic color recording material.
Claim 8
Dependent Claim
82 words
6 . The image processing apparatus according to claim 2 , wherein the plurality of types of recording materials include a first chromatic color recording material and a second chromatic color recording material, and the predetermined color region is a color region between the maximum concentration point due to the first chromatic color recording material and the maximum concentration point due to the second chromatic color recording material, and one type of the recording materials is the first chromatic color recording material.
Claim 9
Dependent Claim
67 words
7 . The image processing apparatus according to claim 2 , wherein the plurality of types of recording materials include achromatic color recording material and chromatic color recording material, and the predetermined color region is a color region between the maximum concentration point due to the achromatic color recording material and the white color, and one type of the recording material is the chromatic color recording material.
Claim 10
Dependent Claim
72 words
8 . The image processing apparatus according to claim 2 , wherein the plurality of types of recording materials include a first achromatic color recording material and a second achromatic color recording material, and the predetermined color region is a color region between the maximum concentration point due to the achromatic color recording material and the white color, and one type of the recording materials is the first achromatic color recording material.
Claim 11
Dependent Claim
19 words
9 . The image processing apparatus according to claim 2 , wherein the recording material is a pigment-based ink.
Claim 12
Dependent Claim
104 words
10 . A program instructing a computer to carry out the processing for determining respective amounts of recording materials used to reproduce a color defined by color signals, the program comprising: program code that carries out the processing for determining the respective amounts of the respective recording materials used to reproduce the color defined by the color signal in a predetermined color region so that at least one type of the recording materials is used over the entire area of the predetermined color region in which a plurality of types of the recording materials with different regular reflected light colors are used for reproduction.
Claim 13
Dependent Claim
104 words
10 . A program instructing a computer to carry out the processing for determining respective amounts of recording materials used to reproduce a color defined by color signals, the program comprising: program code that carries out the processing for determining the respective amounts of the respective recording materials used to reproduce the color defined by the color signal in a predetermined color region so that at least one type of the recording materials is used over the entire area of the predetermined color region in which a plurality of types of the recording materials with different regular reflected light colors are used for reproduction.
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