US4918541A
Expired / Lapsed
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Image processing method and apparatus
Assignee: Canon Inc
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Filing: 1987-04-14
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Granted: 1990-04-17
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Expires: 2007-04-14
Abstract
Abstract An image processing apparatus comprising an image memory for holding image data in the form of a compressed and encoded image data block of a plurality pixels. It also includes a decoder for decoding the encoded data, a device for performing a one-dimensional transformation on the decoded data, and a compressor for encoding the performed result again.
Inventors
- 👤 Yoshihiro Ishida
- 👤 Yuji Nishigaki
- 👤 Naoto Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:39
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/64; H04N1/646; G; G06; G06T; G06T3/00; G06T3/60; G06T3/602; G06T9/00; G06T9/005; H04N1/387; H04N1/3877
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
99 words
An image processing apparatus comprising: enter means for entering a page of image codes which are obtained by compressing a page of image data; decode means for decoding the image codes entered by said enter means and generating image data; process means for image conversion processing the image data generated by said decode means, before the decode of the page of the image codes by said decode means is completed; and compression means for compressing the image data processed by said process means, before the process of the page of the image data by said process means is completed.
Claim 2
Dependent Claim
99 words
An image processing apparatus comprising: enter means for entering a page of image codes which are obtained by compressing a page of image data; decode means for decoding the image codes entered by said enter means and generating image data; process means for image conversion processing the image data generated by said decode means, before the decode of the page of the image codes by said decode means is completed; and compression means for compressing the image data processed by said process means, before the process of the page of the image data by said process means is completed.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, wherein said process means processes the image data generated by said decode means and corresponding to plural lines.
Claim 4
Dependent Claim
31 words
An apparatus according to claim 2, wherein said process means further comprises buffer memory means which stores the image data geberated by said decode means and corresponding to the plural lines.
Claim 5
Dependent Claim
25 words
An apparatus according to claim 1, wherein said process means processes the image data generated by said decode means so as to rotate an image.
Claim 6
Dependent Claim
39 words
An apparatus according to claim 1, wherein said enter means enters the image codes obtained by compressing the image data of each block which block is obtained by dividing the page of the image data into the plural blocks.
Claim 7
Dependent Claim
22 words
An apparatus according to claim 1, wherein said enter means comprises image memory means for storing the page of the image codes.
Claim 8
Dependent Claim
26 words
An apparatus according to claim 1, further comprising buffer memory means for storing the image data processed by said process means and corresponding to plural lines.
Claim 9
Dependent Claim
104 words
An image processing apparatus comprising: first memory means for storing a page of image codes which are obtained by compressing a page of image data; decode means for decoding the image codes read out from said first memory means and generating image data; process means for processing the image data generated by said decode means, before the decode of the page of the image codes by said decode means is completed; compression means for compressing the image data processed by said process means and generating image codes; and second memory means for storing the page of the image codes generated by said compression means.
Claim 10
Dependent Claim
104 words
An image processing apparatus comprising: first memory means for storing a page of image codes which are obtained by compressing a page of image data; decode means for decoding the image codes read out from said first memory means and generating image data; process means for processing the image data generated by said decode means, before the decode of the page of the image codes by said decode means is completed; compression means for compressing the image data processed by said process means and generating image codes; and second memory means for storing the page of the image codes generated by said compression means.
Claim 11
Dependent Claim
24 words
An apparatus according to claim 8, wherein said process means processes the image data generated by said decode means and corresponding to plural lines.
Claim 12
Dependent Claim
31 words
An apparatus according to claim 9, wherein said process means further comprises buffer memory means which stores the image data generated by said decode means and corresponding to the plural lines.
Claim 13
Dependent Claim
25 words
An apparatus according to claim 8, wherein said process means processes the image data generated by said decode means so as to rotate an image.
Claim 14
Dependent Claim
42 words
An apparatus according to claim 8, where in said first and second memory means store the image codes obtained by compressing the image data of each block which block is obtained by dividing the page of the image data into plural blocks.
Claim 15
Dependent Claim
35 words
An apparatus according to claim 8, wherein said compression means compresses the image data processed by said process means, before the process of said process means for the page of the image data is completed.
Claim 16
Dependent Claim
20 words
An apparatus according to claim 8, wherein said process means filter processes the image data generated by said decode means.
Claim 17
Dependent Claim
22 words
An apparatus according to claim 8, wherein said decode means can decode the image codes read out from said second memory means.
Claim 18
Dependent Claim
141 words
An image processing apparatus comprising: image memory means for storing at least one page of image codes which are obtained by compressing image data; decode means for decoding the image codes read out from said image memory means and generating image data; process means for processing the image data generated by said decode means, in accordance with one of plural manners; and compression means for compressing the image data processed by said process means and generated image codes, wherein said image memory means is adapted to store the image codes generated by said compression means, said decode means decodes the image code which have been already processed according to the one of the plural manners and have been stored in said image memory, and said process means processes the image data generated by said decode means, in accordance with another manner.
Claim 19
Dependent Claim
141 words
An image processing apparatus comprising: image memory means for storing at least one page of image codes which are obtained by compressing image data; decode means for decoding the image codes read out from said image memory means and generating image data; process means for processing the image data generated by said decode means, in accordance with one of plural manners; and compression means for compressing the image data processed by said process means and generated image codes, wherein said image memory means is adapted to store the image codes generated by said compression means, said decode means decodes the image code which have been already processed according to the one of the plural manners and have been stored in said image memory, and said process means processes the image data generated by said decode means, in accordance with another manner.
Claim 20
Dependent Claim
24 words
An apparatus according to claim 16, wherein said process means processes the image data generated by said decode means and corresponding to plural lines.
Claim 21
Dependent Claim
31 words
A apparatus according to claim 17, wherein said process means further comprises buffer memory means which stores the image data generated by said decode means and corresponding to the plural lines.
Claim 22
Dependent Claim
25 words
An apparatus according to claim 16, wherein said process means processes the image data generated by said decode means so as to rotate an image.
Claim 23
Dependent Claim
40 words
An apparatus according to claim 16, wherein said image memory means stores the image codes obtained by compressing the image data of each block which block is obtained by dividing the page of the image data into the plural blocks.
Claim 24
Dependent Claim
35 words
An apparatus according to claim 13, wherein said compression means compresses the image data processed by said process means, before the process of said process means for the page of the image data is completed.
Claim 25
Dependent Claim
30 words
An apparatus according to claim 19, wherein said process means processes the image data in first and second manners respectively relating to x- and y-axis directions for the image rotation.
Claim 26
Dependent Claim
29 words
An apparatus according to claim 22, wherein said process means further processes the image data in a manner which is to correct an image area in the image rotation.
Claim 27
Dependent Claim
20 words
An apparatus according to claim 16, wherein said process means filter processes the image data generated by said decode means.
Claim 28
Dependent Claim
127 words
An image processing apparatus comprising: enter means for entering a page of image codes which are obtained by compressing image data; decode means for decoding the image codes entered by said enter means and generating image data; process means for processing the image data generated by said decode means, in accordance with one of plural manners; and compression means for compressing the image data processed by said process means and generating image codes, wherein said decode means is adapted to decode the image codes generated by said compression means, said decode means decodes the image codes which have been already processed according to the one of the plural manners, and said process means processes the image data generated by said decode means, in accordance with another manner.
Claim 29
Dependent Claim
127 words
An image processing apparatus comprising: enter means for entering a page of image codes which are obtained by compressing image data; decode means for decoding the image codes entered by said enter means and generating image data; process means for processing the image data generated by said decode means, in accordance with one of plural manners; and compression means for compressing the image data processed by said process means and generating image codes, wherein said decode means is adapted to decode the image codes generated by said compression means, said decode means decodes the image codes which have been already processed according to the one of the plural manners, and said process means processes the image data generated by said decode means, in accordance with another manner.
Claim 30
Dependent Claim
24 words
An apparatus according to claim 25, wherein said process means processes the image data generated by said decode means and corresponding to plural lines.
Claim 31
Dependent Claim
31 words
An apparatus according to claim 25, wherein said process means further comprises buffer memory means which stores the image data generated by said decode means and corresponding to the plural lines.
Claim 32
Dependent Claim
25 words
An apparatus according to claim 25, wherein said process means processes the image data generated by said decode means so as to rotate an image.
Claim 33
Dependent Claim
39 words
An apparatus according to claim 25, wherein said enter means enters the image codes obtained by compressing the image data of each block of plural blocks obtained by dividing the page of the image data into the plural blocks.
Claim 34
Dependent Claim
22 words
An apparatus according to claim 25, wherein said enter means comprises image memory means for storing the page of the image codes.
Claim 35
Dependent Claim
35 words
An apparatus according to claim 25, wherein said compression means compresses the image data processed by said process means, before the process of said process means for the page of the image data is completed.
Claim 36
Dependent Claim
30 words
An apparatus according to claim 25, wherein said process means processes the image data in first and second manners respectively relating to x- and y-axis directions for the image rotation.
Claim 37
Dependent Claim
29 words
An apparatus according to claim 32, wherein said process means further processes the image data in a manner which is to correct an image area in the image rotation.
Claim 38
Dependent Claim
20 words
An apparatus according to claim 25, wherein said process means filter processes the image data generated by said decode means.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
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