US20030112293A1
Expired / Lapsed
US
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Recording apparatus, recording method therefor and program therefor
Assignee: Fujifilm Business Innovation Corp
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Filing: 2002-12-13
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Granted: —
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Expires: 2022-12-13
Abstract
Abstract Coordinates in an image and its corresponding color-converted data are supplied to a control/operation portion for every pixel. Quantization is applied to each color. The quantization is carried out so that a kind of dot for at least one color is made different from kinds of dots for the others in one and the same pixel when dots for different colors are superimposed on the pixel. The control/operation portion refers to a two-dimensional matrix on the basis of the quantization result, determines an output dot for each color, and converts the data into data which can be processed by a printer. The printer records an image based on the quantization result while reciprocating a recording head. Thus, it is possible to reduce color shift caused by the difference of the ink landing order at the time of reciprocating the head for recording.
Inventors
- 👤 Tohru Shimizu
- 👤 Daisuke Tatsumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/14; B41J19/142; B41J19/147; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2132; G; G06; G06K; G06K15/00; G06K15/02; G06K15/10; G06K15/102; G06K15/105; G06K2215/00; G06K2215/0082; G06K2215/0094
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
168 words
1 . A recording apparatus comprising: a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors; an input section for inputting image data having a gradation value for every pixel; and a quantization section for quantizing the inputted image data so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels, wherein the recording head is reciprocated to record on a recording medium based on a quantization result obtained by the quantization section.
Claim 2
Dependent Claim
168 words
1 . A recording apparatus comprising: a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors; an input section for inputting image data having a gradation value for every pixel; and a quantization section for quantizing the inputted image data so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels, wherein the recording head is reciprocated to record on a recording medium based on a quantization result obtained by the quantization section.
Claim 3
Dependent Claim
72 words
2 . The recording apparatus according to claim 1 , wherein the quantization section quantizes the inputted image data so that the number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels in which dots each having higher density than a predetermined density are superimposed.
Claim 4
Dependent Claim
58 words
3 . The recording apparatus according to claim 1 , wherein the quantization section quantizes the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is not arrange in a deviation manner.
Claim 5
Dependent Claim
79 words
4 . The recording apparatus according to claim 1 , wherein the quantization section quantizes the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel are arranged two-dimensionally without deviation while number of dots for each color in the pixels and number of dots for each kind in the pixels are not changed.
Claim 6
Dependent Claim
34 words
5 . The recording apparatus according to claim 1 , wherein the quantization section carries out second quantization by redetermining a kind of dot for each color with reference to a first quantization result.
Claim 7
Dependent Claim
57 words
6 . The recording apparatus according to claim 5 , wherein in the second quantization, a kind of dot for each color is redetermined based on a dot redetermination ratio, which is prepared in advance, so that the macroscopic hue is equal to the case in which dots having the same kind are superimposed in all pixels.
Claim 8
Dependent Claim
167 words
7 . A method for recording in a recording apparatus having a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors, the method comprising the steps of: inputting image data having a gradation value for every pixel; carrying out quantization so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels; and recording on a recording medium based on a quantization result obtained by the quantization step while reciprocating the recording head.
Claim 9
Dependent Claim
167 words
7 . A method for recording in a recording apparatus having a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors, the method comprising the steps of: inputting image data having a gradation value for every pixel; carrying out quantization so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels; and recording on a recording medium based on a quantization result obtained by the quantization step while reciprocating the recording head.
Claim 10
Dependent Claim
71 words
8 . The method according to claim 7 , wherein the quantization step quantizes the inputted image data so that the number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels in which dots each having higher density than a predetermined density are superimposed.
Claim 11
Dependent Claim
57 words
9 . The method according to claim 7 , wherein the quantization step quantizes the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is not arrange in a deviation manner.
Claim 12
Dependent Claim
78 words
10 . The method according to claim 7 , wherein the quantization step quantizez the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel are arranged two-dimensionally without deviation while number of dots for each color in the pixels and number of dots for each kind in the pixels are not changed.
Claim 13
Dependent Claim
33 words
11 . The method according to claim 7 , wherein the quantization step carries out second quantization by redetermining a kind of dot for each color with reference to a first quantization result.
Claim 14
Dependent Claim
56 words
12 . The method according to claim 11 , wherein in the second quantization, a kind of dot for each color is redetermined based on a dot redetermination ratio, which is prepared in advance, so that the macroscopic hue is equal to the case in which dots having the same kind are superimposed in all pixels.
Claim 15
Dependent Claim
169 words
13 . A program for a recording apparatus having a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors, the program making the recording apparatus execute the steps of; inputting image data having a gradation value for every pixel; carrying out quantization so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels; and recording on a recording medium based on a quantization result obtained by the quantization step while reciprocating the recording head.
Claim 16
Dependent Claim
169 words
13 . A program for a recording apparatus having a recording head capable of forming a plurality of kinds of dots, which are different from each other in density, per unit area for every single color by means of at least one of area coverage modulation and density modulation, the recording head ejecting a plurality of colors, the program making the recording apparatus execute the steps of; inputting image data having a gradation value for every pixel; carrying out quantization so that: number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels on which dots having the same kind are superimposed; and macroscopic hue is equal to a case in which dots having the same kind are superimposed in all pixels; and recording on a recording medium based on a quantization result obtained by the quantization step while reciprocating the recording head.
Claim 17
Dependent Claim
71 words
14 . The program according to claim 13 , wherein the quantization step quantizes the inputted image data so that the number of pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is higher than number of pixels in which dots each having higher density than a predetermined density are superimposed.
Claim 18
Dependent Claim
57 words
15 . The program according to claim 13 , wherein the quantization step quantizes the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel is not arrange in a deviation manner.
Claim 19
Dependent Claim
78 words
16 . The program according to claim 13 , wherein the quantization step quantizez the inputted image data so that the pixels in which the kind of dot for at least one color is different from the kinds of dots for the other colors in one and the same pixel are arranged two-dimensionally without deviation while number of dots for each color in the pixels and number of dots for each kind in the pixels are not changed.
Claim 20
Dependent Claim
33 words
17 . The program according to claim 13 , wherein the quantization step carries out second quantization by redetermining a kind of dot for each color with reference to a first quantization result.
Claim 21
Dependent Claim
56 words
18 . The program according to claim 17 , wherein in the second quantization, a kind of dot for each color is redetermined based on a dot redetermination ratio, which is prepared in advance, so that the macroscopic hue is equal to the case in which dots having the same kind are superimposed in all pixels.
References Cited (Backward Citations)
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