EP0720352A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Selective colour correction method
Assignee: Canon Inc
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Filing: 1995-12-27
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Granted: —
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Expires: 2015-12-27
Abstract
Abstract The present invention intends to simply provide an image which can obtain a desired impression by adjusting a color on the basis of a color adjustment parameter which responds to input image data. The image processing apparatus comprises storage means for storing image data which has different hue, input means for inputting image data objected to be color adjusted, and color adjustment means for performing a color adjustment to at least one of hue, saturation and lightness of the image data objected to be color adjusted using a color adjustment parameter which responds to each of the hue, the saturation and the lightness of the image data objected to be color adjusted on the basis of the stored image data which is selected on the basis of the hue of the image data objected to be color adjusted.
Inventors
- 👤 Jun c/o Canon K.K. Kiyokawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 12:56
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/62
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
An image processing apparatus comprising: storage means for storing image data which has different hue and indicates plural before- and after-adjustment colors; input means for inputting image data designated to be color adjusted; and color adjustment means for performing a color adjustment to at least one of hue, saturation and lightness of the image data designated to be color adjusted using a color adjustment parameter which corresponds to each of the hue, the saturation and the lightness of the image data designated to be color adjusted and on the basis of the stored image data which is selected on the basis of the hue of the image data designated to be color adjusted.
Claim 2
Dependent Claim
40 words
An apparatus according to claim 1, wherein the color adjustment concerning the hue in said color adjustment means is performed on the basis of the image data designated to be color adjusted and the hue of the selected image data.
Claim 3
Dependent Claim
43 words
An apparatus according to claim 1, wherein the color adjustment concerning the saturation in said color adjustment means is performed on the basis of the image data designated to be color adjusted and the hue and the saturation of the selected image data.
Claim 4
Dependent Claim
45 words
An apparatus according to claim 1, wherein the color adjustment concerning the lightness in said color adjustment means is performed on the basis of the image data designated to be color adjusted and the hue, the saturation and the lightness of the selected image data.
Claim 5
Dependent Claim
39 words
An apparatus according to claim 1, wherein the color adjustment in said color adjustment means for the hue, the saturation and the lightness is respectively different, but the color adjustment is all performed on the basis of the hue.
Claim 6
Dependent Claim
39 words
An apparatus according to claim 1, further comprising instruction means for instructing what component is color adjusted from the hue, the saturation and the lightness, and wherein said color adjustment means performs the color adjustment to the instructed component.
Claim 7
Dependent Claim
64 words
An image processing apparatus comprising: input means for inputting image data; detection means for detecting hue of the image data; setting means for setting a lightness adjustment parameter concerning lightness of the image data on the basis of achromatisity in the detected hue; and color adjustment means for performing a color adjustment to the image data on the basis of the lightness adjustment parameter.
Claim 8
Dependent Claim
64 words
An apparatus according to claim 7, further comprising storage means for storing plural representative image data; and selection means for selecting image data from said storage means on the basis of the hue of the input image data, and wherein achromatisity in the hue is extracted on the basis of saturation of the selected image data and the saturation of the input image data.
Claim 9
Dependent Claim
77 words
An image processing method comprising the steps of: storing image data having different hue; and inputting image data subjected to be color adjusted, wherein a color adjustment is performed using a color adjustment parameter which corresponds to each of hue, saturation and lightness of the image data objected to be color adjusted in response to the stored image data which is selected on the basis of the hue of the image data objected to be color adjusted.
Claim 10
Dependent Claim
54 words
An image processing method comprising the steps of: inputting image data; detecting hue, saturation and lightness of the image data; and setting a lightness adjustment parameter concerning the lightness on the basis of the detected hue and the saturation, wherein the image data is color adjusted on the basis of the lightness adjustment parameter.
Claim 11
Dependent Claim
34 words
An image processing method comprising the steps of: inputting image data; and calculating achromatisity in hue of the image data, wherein lightness of the image data is adjusted on the basis of the achromatisity.
References Cited (Backward Citations)
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