EP0463804A2
Expired / Lapsed
EP
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Image processing apparatus and method
Assignee: Canon Inc
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Filing: 1991-06-20
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Granted: —
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Expires: 2011-06-20
Abstract
Abstract An image processing apparatus comprises: an input device for supplying color image information; a discrimination unit to discriminate whether the color image information includes a predetermined image or not in accordance with a color distribution of the color image information supplied by the input device; and a processing circuit to process the color image information in accordance with the result of the discrimination of the discriminating means. The color image information is constructed by a plurality of color component signals. The color distribution is a distribution of the color image information in a color space.
Inventors
- 👤 Kenichi C/O Canon Kabushiki Kaisha Outa
- 👤 Masahiro C/O Canon Kabushiki Kaisha Funada
- 👤 Yoichi C/O Canon Kabushiki Kaisha Takaragi
- 👤 Eiji c/o Canon Kabushiki Kaisha Ohta
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:53
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; H; H04; H04N; H04N1/00; H04N1/00838; H04N1/0084; H04N1/00843; G07; G07D; G07D7/00; G07D7/06; G07D7/12; G07D7/121; G07D7/17; G07D7/20; H04N1/00848; H04N1/00856; H04N1/00864
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
70 words
An image processing apparatus comprising: a) input means for inputting color image information; b) discriminating means for discriminating whether the color image information includes a predetermined image or not in accordance with a color distribution of the color image information which has been supplied by said input means; and c) processing means for processing the color image information in accordance with the result of the discrimination by the discriminating means.
Claim 2
Dependent Claim
20 words
An apparatus according to claim 1, wherein the color image information is constructed by a plurality of color component signals.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1, where said color distribution is a distribution of said color image information in a color space.
Claim 4
Dependent Claim
14 words
An apparatus according to claim 1, wherein said predetermined image is a bank note.
Claim 5
Dependent Claim
26 words
An apparatus according to claim 1, wherein said processing means includes image forming means for forming a visible image in accordance with said color image information.
Claim 6
Dependent Claim
16 words
An apparatus according to claim 5, wherein said image forming means is a laser beam printer.
Claim 7
Dependent Claim
39 words
An image processing method comprising the steps of: a) inputting color image information; and b) discriminating whether the color image information includes a predetermined image or not in accordance with a color distribution of the input color image information.
Claim 8
Dependent Claim
21 words
A method according to claim 7, wherein said color image information is input by image reading means comprising a CCD sensor.
Claim 9
Dependent Claim
20 words
A method according to claim 7, wherein the color image information is constructed by a plurality of color component signals.
Claim 10
Dependent Claim
22 words
A method according to claim 7, wherein said color distribution is a distribution of said color image information in a color space.
Claim 11
Dependent Claim
14 words
A method according to claim 7, wherein said predetermined image is a bank note.
Claim 12
Dependent Claim
28 words
A method according to claim 7, further having the step of processing the color image information in accordance with the result of the discrimination in said discriminating step.
Claim 13
Dependent Claim
94 words
An image processing apparatus comprising: a) converting means for converting color image information into a plurality of code information according to color information; b) processing means for summing said plurality of code information in each of predetermined areas and for forming histograms; c) discriminating means for discriminating whether an image which is represented by said color image information is a predetermined image or not on the basis of said histograms; and d) control means for controlling the process of said image information in accordance with the result of the discrimination by said discriminating means.
Claim 14
Dependent Claim
26 words
An apparatus according to claim 13, wherein each of said code information indicates a similarity between said color image information and a predetermined reference image information.
Claim 15
Dependent Claim
18 words
An apparatus according to claim 14, wherein said predetermined reference image information is based on said predetermined image.
Claim 16
Dependent Claim
81 words
An image processing apparatus comprising: a) input means for inputting a plurality of color component signals; b) lookup table means which uses said plurality of color component signals as addresses and generates data to discriminate a similarity between an image which is represented by said plurality of color component signals and a predetermined image; and c) control means for controlling a process of said plurality of color component signals on the basis of the output data of said lookup table means.
Claim 17
Dependent Claim
14 words
An apparatus according to claim 16, wherein said predetermined image is a bank note.
Claim 18
Dependent Claim
30 words
An apparatus according to claim 16, wherein the discrimination of said similarity is performed in accordance with a distribution of said plurality of color component signals in a color space.
Claim 19
Dependent Claim
17 words
An apparatus according to claim 16, wherein said lookup table means is an RAM or an ROM.
Claim 20
Dependent Claim
26 words
An apparatus according to claim 16, wherein said processing means includes image forming means for forming a visible image in accordance with said color image information.
Claim 21
Dependent Claim
117 words
An image processing apparatus comprising: a) reading means for scanning an original image and for generating image data; b) first discriminating means for discriminating a sameness between the original image and a predetermined image on the basis of the image data generated by said reading means; c) processing means for processing said image data, wherein said reading means generates the image data for the discrimination by said discriminating means by a first scan and also generates the image data for the process by said processing means by a second scan, and said apparatus further comprises d) second discriminating means for discriminating a sameness between an object of the first scan and an object of the second scan.
Claim 22
Dependent Claim
14 words
An apparatus according to claim 21, wherein said predetermined image is a bank note.
Claim 23
Dependent Claim
38 words
An apparatus according to claim 21, wherein the discrimination about the sameness by said first discriminating means is executed on the basis of a distribution in a color space of the image data generated by said reading means.
Claim 24
Dependent Claim
26 words
An apparatus according to claim 21, wherein said processing means includes image forming means for forming a visible image in accordance with said color image information.
Claim 25
Dependent Claim
34 words
An apparatus according to claim 21, wherein the discrimination about the sameness by said second discriminating means is executed on the basis of a histogram of the image data generated by said reading means.
Claim 26
Dependent Claim
81 words
An image processing apparatus comprising: a) input means for inputting a plurality of color component signals each consisting of n bits; b) converting means for converting the color component signals into color component signals each consisting of m bits (n > m); and c) discriminating means for discriminating a sameness between an image represented by the color component signals input by said input means and a predetermined image on the basis of the color component signals each consisting of m bits.
Claim 27
Dependent Claim
93 words
An image processing apparatus comprising: a) input means for inputting image data; b) thinning means for spatially thinning out the image data input by said input means; c) table converting means for generating data which is used to discriminate whether an input original is a specific original or not on the basis of the image data which has been thinned out by said thinning means; and d) control means for controlling a process of said image data input by said input means on the basis of an output of said table converting means.
Claim 28
Dependent Claim
22 words
An apparatus according to claim 27, wherein said thinning means includes means for sampling the time-sequential image data every predetermined n clocks.
Claim 29
Dependent Claim
30 words
An apparatus according to claim 27, wherein said thinning means includes means for obtaining an addition mean of the time-sequential image data of predetermined n clocks and, thereafter, for sampling.
Claim 30
Dependent Claim
33 words
Recognition apparatus for recognising a given object in an image array comprising means for comparing the variability of image data of said array with variability data corresponding to the object to be recognised.
Claim 31
Dependent Claim
20 words
Copying apparatus arranged to detect bank notes responsively to the colour, texture or intensity thereof but not to their shape.
Claim 32
Dependent Claim
27 words
Copying apparatus including a means for substituting a blurred or low resolution image instead of a detected bank note or other predetermined object not to be copied.
References Cited (Backward Citations)
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