EP0997846A2
Expired / Lapsed
EP
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Method for image characterization using color and texture statistics with embedded spatial information
Assignee: Sharp Corp
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Filing: 1999-10-26
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Granted: —
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Expires: 2019-10-26
Abstract
Abstract A method for characterizing an image where a number of test areas (6) of predefined shape and size are located on the image. The color or the texture of the image over each of the test areas (6) is quantified. The image can be characterized by statistical descriptions of the frequency distribution of color or texture of the test areas (6).
Inventors
- 👤 Richard J. Qian
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:23
CPC Classifications
G; G06; G06T; G06T7/00; G06T7/90; Y; Y10; Y10S; Y10S707/00; Y10S707/99941; Y10S707/99944; Y10S707/99945; Y10S707/99948
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
51 words
A method for characterizing an image comprising the steps of: (a) defining a spatial structural element including a plurality of picture
elements; (b) delineating on said image a plurality of test areas (6) corresponding to
said spatial structural element; and (c) quantifying the color of each of said test areas (6).
Claim 2
Dependent Claim
29 words
The method of claim 1 wherein the color of each of said test areas (6) is
quantified as at least one of the mean color and the representative color.
Claim 3
Dependent Claim
30 words
The method of claim 1 wherein the color of each of said test areas (6) is
quantified as the mean of each of the red, green, and blue color intensities.
Claim 4
Dependent Claim
29 words
The method of claim 1 comprising the further step of characterizing said image
by the distribution of the population of said test areas (6) as a function of color.
Claim 5
Independent Claim
72 words
A method for characterizing an image comprising the steps of: (a) defining a spatial structural element including a plurality of picture
elements; (b) delineating on said image a plurality of test areas (6) corresponding to
said spatial structural element; (c) testing the homogeneity of the color of each of said test areas (6) on
said image, and (d) quantifying the color of each of said test areas (6) of sufficiently
homogeneous color.
Claim 6
Dependent Claim
29 words
The method of claim 5 comprising the further step of characterizing said image
by the distribution of the population of said test areas (6) as a function of color.
Claim 7
Independent Claim
54 words
A method for characterizing an image comprising the steps of: (a) defining a spatial structural element including a plurality of picture
elements; (b) delineating on said image a plurality of test areas (6) corresponding to
said spatial structural element; and (c) quantifying the texture of each of said test areas (6) on said image.
Claim 8
Dependent Claim
21 words
The method of claim 7 wherein the texture of each of said test areas (6) is
quantified as the mean texture.
Claim 9
Dependent Claim
29 words
The method of claim 7 comprising the further step of characterizing said image
by the distribution of the population of said test areas (6) as a function of
texture.
Claim 10
Independent Claim
70 words
A method for characterizing an image comprising the steps of: (a) defining a spatial structural element including a plurality of picture
elements; (b) delineating on said image a plurality of test areas (6) corresponding to
said spatial structural element; (c) testing the homogeneity of the texture of each of said test areas (6),
and (d) quantifying the texture of each of said test areas (6) having a
sufficiently homogeneous texture.
Claim 11
Dependent Claim
29 words
The method of claim 10 comprising the further step of characterizing said
image by the distribution of the population of said test areas (6) as a function
of texture.
References Cited (Backward Citations)
No citation records indexed.
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