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US5371609A
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Image processing method and apparatus for reducing image degradation
Assignee: Canon Inc
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Filing: 1993-11-05
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Granted: 1994-12-06
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Expires: 2013-11-05
Abstract
Abstract This invention relates to an image processing method and apparatus and particularly solves problems of image degradation in multi-generation copying (copying, using a previous copy output as an original). A generation copy mode is provided in addition to the normal copy mode.
Inventors
- 👤 Akio Suzuki
- 👤 Yoshihiro Takada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/40006; H04N1/407
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
151 words
An image processing apparatus comprising: a) input means for scanning an original image and generating image data; b) processing means for processing the image data generated by said input means; and c) output means for forming a reproduction image in accordance with the image data processed by said processing means, wherein, in a first mode said input means scans a first original image and generates first image data, said processing means processes the first image data by using a first processing parameter and said output means forms a first reproduction image, and in a second mode, said input means scans the first reproduction image formed by said output means and generates second image data, said processing means processes the second image data by using a second processing parameter and is suitable for processing the second image data generated by said input means, and said output means forms a second reproduction image.
Claim 2
Dependent Claim
151 words
An image processing apparatus comprising: a) input means for scanning an original image and generating image data; b) processing means for processing the image data generated by said input means; and c) output means for forming a reproduction image in accordance with the image data processed by said processing means, wherein, in a first mode said input means scans a first original image and generates first image data, said processing means processes the first image data by using a first processing parameter and said output means forms a first reproduction image, and in a second mode, said input means scans the first reproduction image formed by said output means and generates second image data, said processing means processes the second image data by using a second processing parameter and is suitable for processing the second image data generated by said input means, and said output means forms a second reproduction image.
Claim 3
Dependent Claim
18 words
An apparatus according to claim 1, wherein said input means comprises an image reader having a CCD sensor.
Claim 4
Dependent Claim
18 words
An apparatus according to claim 1, wherein said processing means performs density correction of the input image data.
Claim 5
Dependent Claim
18 words
An apparatus according to claim 1, wherein said processing means performs color correction of the input image data.
Claim 6
Dependent Claim
21 words
An apparatus according to claim 1, wherein said processing means performs conversion of spatial frequency characteristics of the input image data.
Claim 7
Dependent Claim
64 words
An apparatus according to claim 1, wherein said output means includes a plurality of ports for ejecting ink, and heat energy generating means, formed in correpsondance with said plurality of ports, for causing a state change by ink heating, ejecting the ink from each of said plurality of ports on the basis of the state change, and forming at least one flying liquid droplet.
Claim 8
Dependent Claim
31 words
An apparatus according to claim 1, wherein said output means includes means for forming a latent image on a photosensitive body and developing the latent image by using a recording agent.
Claim 9
Dependent Claim
15 words
An apparatus according to claim 1, wherein the second mode is a generation copy mode.
Claim 10
Dependent Claim
15 words
An apparatus according to claim 1, wherein the first mode is a normal copy mode.
Claim 11
Dependent Claim
23 words
An apparatus according to claim 1, wherein said processing means includes section means for manually selecting said first mode or said second mode.
Claim 12
Dependent Claim
24 words
An apparatus according to claim 1, wherein said processing means includes memory means for storing said first processing parameter and said second processing parameter.
Claim 13
Dependent Claim
138 words
An image processing method comprising the steps of: a) scanning an original image and generating image data; b) processing the generated image data; and c) forming a reproduction image in accordance with the processed image data, wherein, in a first mode, first image data which is generated by scanning a first original image is processed by using a first processing parameter and a first reproduction image is formed in accordance with the processed first data, and in a second mode, second image data which is generated by scanning the first reproduction image is processed by using a second processing parameter, which is different from the first processing parameter and is suitable for processing the second image data obtained from the first reproduction image and a second reproduction image is formed in accordance with the processed second image data.
Claim 14
Dependent Claim
138 words
An image processing method comprising the steps of: a) scanning an original image and generating image data; b) processing the generated image data; and c) forming a reproduction image in accordance with the processed image data, wherein, in a first mode, first image data which is generated by scanning a first original image is processed by using a first processing parameter and a first reproduction image is formed in accordance with the processed first data, and in a second mode, second image data which is generated by scanning the first reproduction image is processed by using a second processing parameter, which is different from the first processing parameter and is suitable for processing the second image data obtained from the first reproduction image and a second reproduction image is formed in accordance with the processed second image data.
Claim 15
Dependent Claim
20 words
A method according to claim 12, further comprising the step of manually selecting the first mode or the second mode.
Claim 16
Dependent Claim
24 words
A method according to claim 12, wherein said processing step uses a memory which stores the first processing parameter and the second processing parameter.
Claim 17
Dependent Claim
19 words
A method according to claim 12, wherein the image data is input by an image reader having a CCD.
Claim 18
Dependent Claim
22 words
A method according to claim 12, wherein processing step further comprises the step of performing density correction of the input image data.
Claim 19
Dependent Claim
22 words
A method according to claim 12, wherein processing step further comprises the step of performing color correction of the input image data.
Claim 20
Dependent Claim
24 words
A method according to claim 12, wherein said processing step further comprises the step of converting spatial frequency characteristics of the input image data.
Claim 21
Dependent Claim
15 words
A method according to claim 12, wherein the second mode is a generation copy mode.
Claim 22
Dependent Claim
15 words
A method according to claim 12, wherein the first mode is a normal copy mode.
Claim 23
Dependent Claim
125 words
An image processing apparatus comprising: a) input means for inputting image data; b) processing means for processing the image data input by said input means; c) output means for forming an image in accordance with the image data processed by said processing means; and d) setting means for setting a first mode for setting a first process parameter suitable for a first condition which satisfies D 1 <D 2 and a second mode for setting a second process parameter suitable for a second condition which satisfies D 1 ≃D 2 , where D 1 is a maximum recording density which said output means is able to form and D 2 is a maximum original density corresponding to a maximum value of the processed image data.
Claim 24
Dependent Claim
125 words
An image processing apparatus comprising: a) input means for inputting image data; b) processing means for processing the image data input by said input means; c) output means for forming an image in accordance with the image data processed by said processing means; and d) setting means for setting a first mode for setting a first process parameter suitable for a first condition which satisfies D 1 <D 2 and a second mode for setting a second process parameter suitable for a second condition which satisfies D 1 ≃D 2 , where D 1 is a maximum recording density which said output means is able to form and D 2 is a maximum original density corresponding to a maximum value of the processed image data.
Claim 25
Dependent Claim
19 words
An apparatus according to claim 21, wherein said input means comprises an image reader constituted by a CCD sensor.
Claim 26
Dependent Claim
18 words
An apparatus according to claim 21, wherein said processing means performs density correction of the input image data.
Claim 27
Dependent Claim
18 words
An apparatus according to claim 21, wherein said processing means performs color correction of the input image data.
Claim 28
Dependent Claim
21 words
An apparatus according to claim 21, wherein said processing means performs conversion of spatial frequency characteristics of the input image data.
Claim 29
Dependent Claim
64 words
An apparatus according to claim 21, wherein said output means includes a plurality of ports for ejecting ink, and heat energy generating means, formed in correpsondance with said plurality of ports, for causing a state change by ink heating, ejecting the ink from each of said plurality of ports on the basis of the state change, and forming at least one flying liquid droplet.
Claim 30
Dependent Claim
31 words
An apparatus according to claim 21, wherein said output means includes means for forming a latent image on a photosensitive body and developing the latent image by using a recording agent.
Claim 31
Dependent Claim
15 words
An apparatus according to claim 21, wherein the second mode is a generation copy mode.
Claim 32
Dependent Claim
15 words
An apparatus according to claim 21, wherein the first mode is a normal copy mode.
Claim 33
Dependent Claim
14 words
An apparatus according to claim 21, wherein D 1 is not more than 1.8.
Claim 34
Dependent Claim
106 words
An image processing apparatus comprising: a) input means for inputting image data representing an original image; b) processing means for processing the image data input by said input means; c) output means for forming a reproduction image in accordance with the image data processed by said processing means; and d) memory means for storing at least a first parameter for optimizing a resolution to obtain first output image data from first input image data and a second parameter which is different from the first parameter for optimizing a resolution to obtain second output image data from the first output image data as second input image data.
Claim 35
Dependent Claim
106 words
An image processing apparatus comprising: a) input means for inputting image data representing an original image; b) processing means for processing the image data input by said input means; c) output means for forming a reproduction image in accordance with the image data processed by said processing means; and d) memory means for storing at least a first parameter for optimizing a resolution to obtain first output image data from first input image data and a second parameter which is different from the first parameter for optimizing a resolution to obtain second output image data from the first output image data as second input image data.
Claim 36
Dependent Claim
18 words
An apparatus according to claim 31, wherein said input means comprises an image reader having a CCD sensor.
Claim 37
Dependent Claim
18 words
An apparatus according to claim 31, wherein said processing means performs density correction of the input image data.
Claim 38
Dependent Claim
18 words
An apparatus according to claim 31, wherein said processing means performs color correction of the input image data.
Claim 39
Dependent Claim
21 words
An apparatus according to claim 31, wherein said processing means performs conversion of spatial frequency characteristics of the input image data.
Claim 40
Dependent Claim
64 words
An apparatus according to claim 31, wherein said output means includes a plurality of ports for ejecting ink, and heat energy generating means, formed in correpsondance with said plurality of ports, for causing a state change by ink heating, ejecting the ink from each of said plurality of ports on the basis of the state change, and forming at least one flying liquid droplet.
Claim 41
Dependent Claim
31 words
An apparatus according to claim 31, wherein said output means includes means for forming a latent image on a photosensitive body and developing the latent image by using a recording agent.
Claim 42
Dependent Claim
15 words
An apparatus according to claim 31, wherein the second mode is a generation copy mode.
Claim 43
Dependent Claim
15 words
An apparatus according to claim 31, wherein the first mode is a normal copy mode.
Claim 44
Dependent Claim
117 words
An image processing apparatus comprising: a) input means for inputting image data; b) processing means for processing the image data input by said input means; c) output means for outputting the image data processed by said processing means; and d) memory means for storing a parameter for minimizing a color difference between first input image data and first output image data when the first output image data is to be obtained from the first input image data and a parameter for minimizing a color difference between second input image data and second output image data when the second output image data is to be obtained from the first output image data as the second input image data.
Claim 45
Dependent Claim
117 words
An image processing apparatus comprising: a) input means for inputting image data; b) processing means for processing the image data input by said input means; c) output means for outputting the image data processed by said processing means; and d) memory means for storing a parameter for minimizing a color difference between first input image data and first output image data when the first output image data is to be obtained from the first input image data and a parameter for minimizing a color difference between second input image data and second output image data when the second output image data is to be obtained from the first output image data as the second input image data.
Claim 46
Dependent Claim
18 words
An apparatus according to claim 40, wherein said input means comprises an image reader having a CCD sensor.
Claim 47
Dependent Claim
18 words
An apparatus according to claim 40, wherein said processing means performs density correction of the input image data.
Claim 48
Dependent Claim
18 words
An apparatus according to claim 40, wherein said processing means performs color correction of the input image data.
Claim 49
Dependent Claim
21 words
An apparatus according to claim 40, wherein said processing means performs conversion of spatial frequency characteristics of the input image data.
Claim 50
Dependent Claim
64 words
An apparatus according to claim 40, wherein said output means includes a plurality of ports for ejecting ink, and heat energy generating means, formed in correspondence with said plurality of ports, for causing a state change by ink heating, ejecting the ink from each of said plurality of ports on the basis of the state change, and forming at least one flying liquid droplet.
Claim 51
Dependent Claim
31 words
An apparatus according to claim 40, wherein said output means includes means for forming a latent image on a photosensitive body and developing the latent image by using a recording agent.
Claim 52
Dependent Claim
15 words
An apparatus according to claim 40, wherein the first mode is a generation copy mode.
Claim 53
Dependent Claim
15 words
An apparatus according to claim 40, wherein the second mote is a normal copy mode.
Claim 54
Dependent Claim
17 words
An apparatus according to claim 40, wherein the parameters are calculated by a method of least squares.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-12-05 | 1998-06-06 | 1998-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-05 | 2002-06-06 | 2002-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-05 | 2006-06-06 | 2006-12-06 | $7700.00 | Window Closed / Lapsed |