US5489997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color image processing apparatus
Assignee: Canon Inc
•
Filing: 1991-11-26
•
Granted: 1996-02-06
•
Expires: 2011-11-26
Abstract
Abstract A color image processing apparatus includes a storage device for storing input image data for one frame and a discriminator for analyzing the color image data stored in the storage device. In the color image processing apparatus, the discriminator discriminates the type of the stored color image data utilizing a membership function.
Inventors
- 👤 Akihiro Usami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:13
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6094
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
77 words
A color image processing apparatus comprising: inputting means for inputting electrical color image signals; and discriminating means for analyzing the electrical color image signals, so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which relates to a respectively different characteristic extracted from an electrical color image signal; wherein the type of the electrical color image signals corresponds to a source of the electrical color image signals.
Claim 2
Dependent Claim
77 words
A color image processing apparatus comprising: inputting means for inputting electrical color image signals; and discriminating means for analyzing the electrical color image signals, so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which relates to a respectively different characteristic extracted from an electrical color image signal; wherein the type of the electrical color image signals corresponds to a source of the electrical color image signals.
Claim 3
Dependent Claim
26 words
An apparatus according to claim 1, further comprising: correction means for correcting said electrical color image signals according to a discrimination result of said discrimination means.
Claim 4
Dependent Claim
27 words
An apparatus according to claim 2, further comprising: means for outputting the electrical color image signals corrected by said correction means to a color image recording device.
Claim 5
Dependent Claim
16 words
An apparatus according to claim 3, wherein said color image recording device comprises an electrophotographic printer.
Claim 6
Dependent Claim
16 words
An apparatus according to claim 3, wherein said color image recording device comprises an ink-jet printer.
Claim 7
Dependent Claim
36 words
An apparatus according to claim 1, wherein each of the membership functions is a function that indicates a region which includes input electrical color image signals on a color space divided into a plurality of regions.
Claim 8
Dependent Claim
46 words
A color image processing apparatus according to claim 1, wherein said discrimination means derives a histogram of the electrical color image signals for plural areas in a divided color space, and uses measured values for the plural areas as inputs for the plurality of membership functions.
Claim 9
Dependent Claim
24 words
A color image processing apparatus according to claim 1, wherein said source of the electrical color image signals is a still video (SV) apparatus.
Claim 10
Dependent Claim
21 words
A color image processing apparatus according to claim 1, wherein said source of the electrical color image signals is negative film.
Claim 11
Dependent Claim
21 words
A color image processing apparatus according to claim 1, wherein said source of the electrical color image signals is positive film.
Claim 12
Dependent Claim
22 words
A color image processing apparatus according to claim 1, wherein said source of the electrical color image signals is an image reader.
Claim 13
Dependent Claim
34 words
A color image processing apparatus according to claim 1, wherein the type of the electrical color image signals corresponding to said source of the electrical color image signals is a computer graphic (CG) image.
Claim 14
Dependent Claim
78 words
A color image processing method comprising the steps of: inputting electrical color image signals; and analyzing the electrical color image signals so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which relates to a respectively different characteristic extracted from an electrical color image signal; wherein in the analyzing step, the type of the electrical color image signals corresponds to a source of the electrical color image signals.
Claim 15
Dependent Claim
78 words
A color image processing method comprising the steps of: inputting electrical color image signals; and analyzing the electrical color image signals so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which relates to a respectively different characteristic extracted from an electrical color image signal; wherein in the analyzing step, the type of the electrical color image signals corresponds to a source of the electrical color image signals.
Claim 16
Dependent Claim
135 words
A color image processing apparatus, comprising: storing means for storing input color image data for one frame of an image; discrimination means for analyzing the input color image data stored in said storing means, so as to discriminate a type of the input color image data using a plurality of membership functions, each of which represents a respectively different image characteristic; correction means for correcting the input color image data according to a discrimination result of said discrimination means, and means for outputting the input color image data corrected by said correction means to a color image recording device, wherein said color image recording device comprises a printer for discharging an ink by film boiling, and wherein the type of the input color image data corresponds to a source of the input color image data.
Claim 17
Dependent Claim
135 words
A color image processing apparatus, comprising: storing means for storing input color image data for one frame of an image; discrimination means for analyzing the input color image data stored in said storing means, so as to discriminate a type of the input color image data using a plurality of membership functions, each of which represents a respectively different image characteristic; correction means for correcting the input color image data according to a discrimination result of said discrimination means, and means for outputting the input color image data corrected by said correction means to a color image recording device, wherein said color image recording device comprises a printer for discharging an ink by film boiling, and wherein the type of the input color image data corresponds to a source of the input color image data.
Claim 18
Dependent Claim
46 words
A color image processing apparatus according to claim 14, wherein said discrimination means derives a histogram of the input color image data for plural areas divided into a color space, and uses measured values for the plural areas as inputs for the plurality of membership functions.
Claim 19
Dependent Claim
80 words
A color image processing apparatus comprising: storing means for storing input color image data for one frame; and discrimination means for analyzing the input color image data stored in said storing means, so as to discriminate a type of the input color image data using a plurality of membership functions, each of which represents a respectively different image characteristic, wherein said discrimination means discriminates whether or not the type of the input color image data is a computer graphic image.
Claim 20
Dependent Claim
80 words
A color image processing apparatus comprising: storing means for storing input color image data for one frame; and discrimination means for analyzing the input color image data stored in said storing means, so as to discriminate a type of the input color image data using a plurality of membership functions, each of which represents a respectively different image characteristic, wherein said discrimination means discriminates whether or not the type of the input color image data is a computer graphic image.
Claim 21
Dependent Claim
46 words
A color image processing apparatus according to claim 16, wherein said discrimination means derives a histogram of the input color image data for plural areas in a divided color space, and uses measured values for the plural areas as inputs for the plurality of membership functions.
Claim 22
Dependent Claim
80 words
A color image processing apparatus comprising: input means for inputting electrical color image signals; and discrimination means for analyzing the electrical color image signals, so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which represents a respectively different image characteristic, wherein said discrimination means discriminates whether the type of the electrical color image signals input from said input means is a negative color image or a positive color image.
Claim 23
Dependent Claim
80 words
A color image processing apparatus comprising: input means for inputting electrical color image signals; and discrimination means for analyzing the electrical color image signals, so as to discriminate a type of the electrical color image signals using a plurality of membership functions, each of which represents a respectively different image characteristic, wherein said discrimination means discriminates whether the type of the electrical color image signals input from said input means is a negative color image or a positive color image.
Claim 24
Dependent Claim
26 words
An apparatus according to claim 18, further comprising: correction means for correcting the electrical color image signals according to a discrimination result of said discrimination means.
Claim 25
Dependent Claim
27 words
An apparatus according to claim 19, further comprising: means for outputting the electrical color image signals corrected by said correction means to a color image recording device.
Claim 26
Dependent Claim
36 words
An apparatus according to claim 18, wherein each of the membership functions is a function that indicates a region which includes input electrical color image signals on a color space divided into a plurality of regions.
Claim 27
Dependent Claim
46 words
A color image processing apparatus according to claim 18, wherein said discrimination means derives a histogram of the electrical color image signals for plural areas in a divided color space, and uses measured values for the plural areas as inputs for the plurality of membership functions.
References Cited (Backward Citations)
US4713684A
Cited
US4679074A
Cited
US4559563A
Cited
US4667228A
Cited
US4731662A
Cited
US4829371A
Cited
JPS61296858A
Cited
EP0267805A2
Cited
US4830501A
Cited
US4908701A
Cited
US4893181A
Cited
US5073818A
Cited
US5051928A
Cited
US5062058A
Cited
US5018085A
Cited
EP0363969A2
Cited
EP0415648A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-05 | 1999-08-07 | 2000-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-05 | 2003-08-07 | 2004-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-05 | 2007-08-07 | 2008-02-06 | $7700.00 | Window Closed / Lapsed |