EP1041815A2
Expired / Lapsed
EP
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Image processing apparatus, image processing method, and storage medium
Assignee: Canon Inc
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Filing: 2000-03-29
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Granted: —
•
Expires: 2020-03-29
Abstract
Abstract A deterrent effect for a forgery of an image can be provided and both of the protection of a picture quality of an image of a relatively low similarity and the prevention of a forgery of an image of a relatively high similarity can be realized. For this purpose, an image processing apparatus has embedding processing means for embedding predetermined information which can specify an output apparatus and an output date/time as a digital watermark having a resistance according to a similarity with a specific image 106 into an output image, thereby enabling the deterrent of a forgery of the specific image 106 according to the similarity to be realized while outputting an image which the operator intends to output.
Inventors
- 👤 Keiichi C/O Canon Kabushiki Kaisha Iwamura
- 👤 Takeshi C/O Canon Kabushiki Kaisha Makita
- 👤 Yoshihiro C/O Canon Kabushiki Kaisha Ishida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:22
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/0028; H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32154; H04N1/32165; H04N1/32187
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
41 words
An image processing apparatus comprising: embedding processing means for embedding
predetermined information which can specify an output
apparatus and an output date/time as a digital
watermark having a resistance according to a similarity
with a specific image into an output image.
Claim 2
Dependent Claim
102 words
An image processing apparatus comprising: input means for inputting image information; evaluating means for evaluating, at multistages, a
similarity between an image which is expressed by said
image information and a specific image whose accurate
reconstruction is inhibited; image information transforming processing means
for transforming the image information inputted by said
input means on the basis of a degree according to the
multistage evaluation by said evaluating means; and selecting means for selecting both or either one
of a digital watermark embedding method and a
resistance parameter on the basis of the degree
according to the multistage evaluation by said
evaluating means.
Claim 3
Dependent Claim
104 words
An image processing apparatus comprising: input means for inputting image information; evaluating means for evaluating, at multistages, a
similarity between an image which is expressed by said
image information and a specific image whose accurate
reconstruction is inhibited; image information transforming processing means
for transforming the image information inputted by said
input means on the basis of a degree according to the
multistage evaluation by said evaluating means; and selecting means for selecting either a
transforming process for a visible image or a
transforming process for an invisible image on the
basis of the degree according to the multistage
evaluation by said evaluating means.
Claim 4
Dependent Claim
16 words
An apparatus according to claim 2, wherein
said transforming process is a digital watermark
embedding process.
Claim 5
Dependent Claim
25 words
An apparatus according to claim 2, wherein
said evaluating means evaluates a similarity between
digital watermark information included in said specific
image and predetermined information.
Claim 6
Dependent Claim
32 words
An apparatus according to claim 3, wherein
said selecting means can select either a digital
watermark embedding method or a resistance parameter on
the basis of the degree according to said evaluation.
Claim 7
Dependent Claim
44 words
An image processing apparatus comprising: input means for inputting image information; discriminating means for discriminating a
similarity between said image information and a
specific image; and embedding means for embedding a digital watermark
having a resistance according to said similarity into
said image information.
Claim 8
Dependent Claim
21 words
An apparatus according to claim 7, wherein
said resistance changes due to said digital watermark
embedding method or said resistance parameter.
Claim 9
Dependent Claim
30 words
An apparatus according to claim 7, wherein
said digital watermark includes a watermark which is
embedded into a space region and a watermark which is
embedded into a frequency region.
Claim 10
Dependent Claim
15 words
An apparatus according to claim 7, wherein
said specific image includes a bill or securities.
Claim 11
Dependent Claim
73 words
An image processing apparatus comprising: input means for inputting image information; extracting means for extracting a digital
watermark from said image information in order to
discriminate whether said image information is a bill
or securities; discriminating means for discriminating a
similarity indicating whether said image information is
the bill or securities by using said extracted digital
watermark; and processing means for processing said image
information in accordance with a result of said
discrimination.
Claim 12
Dependent Claim
27 words
An apparatus according to claim 11, wherein
said process is any of an embedding of the digital
watermark, a black painting, and a stop of an output.
Claim 13
Dependent Claim
44 words
An apparatus according to claim 11, wherein
when it is determined as a result of said
discrimination that the similarity between said image
information and the bill or securities is high, a
digital watermark of a high resistance is embedded into
said image information.
Claim 14
Dependent Claim
42 words
An image processing method comprising: an embedding processing step of embedding
predetermined information which can specify an output
apparatus and an output date/time as a digital
watermark having a resistance according to a similarity
with a specific image into an output image.
Claim 15
Dependent Claim
106 words
An image processing method comprising: an input step of inputting image information; an evaluating step of evaluating, at multistages,
a similarity between an image which is expressed by
said image information and a specific image whose
accurate reconstruction is inhibited; an image information transforming processing step
of transforming the image information inputted in said
input step on the basis of a degree according to the
multistage evaluation in said evaluating step; and a selecting step of selecting both or either one
of a digital watermark embedding method and a
resistance parameter on the basis of the degree
according to the multistage evaluation in said
evaluating step.
Claim 16
Dependent Claim
108 words
An image processing method comprising: an input step of inputting image information; an evaluating step of evaluating, at multistages,
a similarity between an image which is expressed by
said image information and a specific image whose
accurate reconstruction is inhibited; an image information transforming processing step
of transforming the image information inputted in said
input step on the basis of a degree according to the
multistage evaluation in said evaluating step; and a selecting step of selecting either a
transforming process for a visible image or a
transforming process for an invisible image on the
basis of the degree according to the multistage
evaluation in said evaluating step.
Claim 17
Dependent Claim
47 words
An image processing method comprising: an input step of inputting image information; a discriminating step of discriminating a
similarity between said image information and a
specific image; and an embedding step of embedding a digital watermark
having a resistance according to said similarity into
said image information.
Claim 18
Dependent Claim
77 words
An image processing method comprising: an input step of inputting image information; an extracting step of extracting a digital
watermark from said image information in order to
discriminate whether said image information is a bill
or securities; a discriminating step of discriminating a
similarity indicating whether said image information is
the bill or securities by using said extracted digital
watermark; and a processing step of processing said image
information in accordance with a result of said
discrimination.
Claim 19
Dependent Claim
51 words
A computer-readable storage medium which
stored an image processing program, wherein said
program comprises: an embedding processing step of embedding
predetermined information which can specify an output
apparatus and an output date/time as a digital
watermark having a resistance according to a similarity
with a specific image into an output image.
Claim 20
Dependent Claim
115 words
A computer-readable storage medium which
stored an image processing program, wherein said
program comprises: an input step of inputting image information; an evaluating step of evaluating, at multistages,
a similarity between an image which is expressed by
said image information and a specific image whose
accurate reconstruction is inhibited; an image information transforming processing step
of transforming the image information inputted in said
input step on the basis of a degree according to the
multistage evaluation in said evaluating step; and a selecting step of selecting both or either one
of a digital watermark embedding method and a
resistance parameter on the basis of the degree
according to the multistage evaluation in said
evaluating step.
Claim 21
Dependent Claim
117 words
A computer-readable storage medium which
stored an image processing program, wherein said
program comprises: an input step of inputting image information; an evaluating step of evaluating, at multistages,
a similarity between an image which is expressed by
said image information and a specific image whose
accurate reconstruction is inhibited; an image information transforming processing step
of transforming the image information inputted in said
input step on the basis of a degree according to the
multistage evaluation in said evaluating step; and a selecting step of selecting either a
transforming process for a visible image or a
transforming process for an invisible image on the
basis of the degree according to the multistage
evaluation in said evaluating step.
Claim 22
Dependent Claim
56 words
A computer-readable storage medium which
stored an image processing program, wherein said
program comprises: an input step of inputting image information; a discriminating step of discriminating a
similarity between said image information and a
specific image; and an embedding step of embedding a digital watermark
having a resistance according to said similarity into
said image information.
Claim 23
Dependent Claim
86 words
A computer-readable storage medium which
stored an image processing program, wherein said
program comprises: an input step of inputting image information; an extracting step of extracting a digital
watermark from said image information in order to
discriminate whether said image information is a bill
or securities; a discriminating step of discriminating a
similarity indicating whether said image information is
the bill or securities by using said extracted digital
watermark; and a processing step of processing said image
information in accordance with a result of said
discrimination.
References Cited (Backward Citations)
No citation records indexed.
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