Freely configurable image processing apparatus

• US 5,715,070 A
• Filed: 04/25/1995
• Issued: 02/03/1998
• Est. Priority Date: 04/28/1994
• Status: Expired due to Term

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Yoh, Anki, Tone, Takeharu, Kawamoto, Hiroyuki, Ito, Masaaki, Namizuka, Yoshiyuki, Kamon, Kouichi
• Primary Examiner(s): FRAHM, ERIC S
• Application Number:
  US08/429,273
• Time in Patent Office: 1,015 Days
• Field of Search: 358/296, 358/400, 358/401, 358/407, 358/434, 358/442, 358/443, 358/447, 358/448, 358/468, 358/530, 395/101, 395/112, 395/114, 395/117, 399/1, 399/2, 399/38, 399/46, 399/75, 399/77
• US Class Current: 358/468
• CPC Class Codes: G06T 1/20 Processor architectures; Processor configuration, e.g. pipelining
• CPC Class Codes: H04N 1/00204 with a digital computer or a digital computer system, e.g. an internet server programmed control between transmitter and receiver or between image input and image output device H04N1/32561
• CPC Class Codes: H04N 1/32561 using a programmed control device, e.g. a microprocessor
• CPC Class Codes: H04N 1/32577 Input interface
• CPC Class Codes: H04N 1/32582 Output interface
• CPC Class Codes: H04N 1/32587 Controller
• CPC Class Codes: H04N 1/32603 Multi-bus systems
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0082 Image hardcopy reproducer H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0086 Image transceiver H04N2201/0093 and H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0087 Image storage device

Abstract

A freely configurable image processing apparatus comprises a plurality of processing sections each executing a specified processing to a digital image signal; namely a scanner section, a shading section, a filter section, an image size changing section, a γ-conversion section, a tone processing section, an editorial section, a storage section, an external interface section, a printing section, and a plot section, wherein a sequence of processing by these processing section can freely be changed by a selector control section according to an instruction from a main control section by switching a mains elector and an out selector connected to each processing section.

Claims

1. An image processing apparatus, comprising:

a plurality of processing sections each executing a specified type of processing on a digital image signal; and

a controller coupled to said plurality of processing sections and configured for setting a sequence of processing on an image signal by said plurality of processing sections, according to a signal indicative of said sequence of processing;

wherein said controller comprises;

a plurality of buses connecting said plurality of processing sections and carrying image signals,

an input selector coupled to the plurality of buses and a processing section of the plurality of processing sections and configured for selectively fetching an image signal from one of the plurality of buses into said processing section,

an output selector coupled to the plurality of buses and a processing section of the plurality of processing sections and configured for selecting one of the plurality of buses to which an image signal from said processing signal is output, and

a selector control section coupled to said input selector and said output selector and configured for selecting one of the plurality of buses by means of switching said input selector and said output selector.

2. An image processing apparatus according to claim 1, wherein the number of said plurality of buses is at least as great as one less than the number of said plurality of processing sections.

3. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes an image size changing section for changing the image size of an image signal in the main scanning direction, and a storage section for storing an image signal and rotating an image; and

said controller is configured for setting the sequence of processing in the order of the image size changing section, the storage section, and then the image size changing section.

4. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes a printing section for synthesizing an image signal with a page number, and a storage section for storing an image signal and rotating an image; and

said controller is configured for setting the sequence of processing in the order of the printing section, the storage section, and then the printing section.

5. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes a filter section for smoothing and/or emphasizing an image signal, and a storage section for storing an image signal and rotating an image; and

said controller is configured for setting the sequence of processing in the order of the filter section, the storage section, and then the filter section.

6. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes an image size changing section for changing in the main scanning direction the image size of an image signal and a storage section for storing an image signal; and

said controller is configured for setting the sequence of processing in the order of the image size changing section, the storage section, and then the image size changing section.

7. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes an editorial section for mirroring and/or inclining an image and a storage section for storing an image signal; and

said controller is configured for setting the sequence of processing in the order of the editorial section, the storage section, and then the editorial section.

8. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes an editorial section for mirroring and/or inclining an image, a storage section for storing an image signal, and a tone processing section for processing the tone of an image; and

said controller is configured for setting the sequence of processing in the order of the editorial section, the tone processing section, the storage section, and then the editorial section.

9. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for storing image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the filter section, the image size changing section, the γ

-conversion section, the editorial section, the printing section, the storage section, the tone processing section, the external interface section, and then the plot section.

10. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for accumulating image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the filter section, the image size changing section, the γ

-conversion section, the storage section, the tone processing section, the editorial section, the printing section, the external interface section, and then the plot section.

11. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for accumulating image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the filter section, the image size changing section, the γ

-conversion section, the editorial section, the printing section, the storage section, the external interface section, the tone processing section, and then the plot section.

12. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for accumulating image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the external interface section, the filter section, the image size changing section, the γ

-conversion section, the editorial section, the printing section, the storage section, the tone processing section, and then the plot section.

13. An image processing apparatus according to claim 1, wherein:

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for accumulating image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the filter section, the image size changing section, the T-conversion section, the tone processing section, the printing section, the editorial section, the storage section, the external interface section, and then the plot section.

14. An image processing apparatus according to claim 1, wherein;

said plurality of processing sections includes;

a shading section for correcting nonuniformity in an image caused by an illuminating system,

a filter section for converting frequency characteristics of an image signal,

an image size changing section for changing the size of an image in the main scanning direction,

a γ

-conversion section for converting and processing input image data so that a copy with a specified degree of darkness will be obtained according to a copying mode and a notch preset value,

an editorial section for processing image data,

a printing section for synthesizing characters,

a storage section for accumulating image data,

a tone processing section for executing at least one of multi-valued coding processing, error enlarging processing, multi-valued dither processing, and binary value coding processing,

an external interface section for sending signals to or receiving signals from an external device, and

a plot section for printing characters and images; and

said controller is configured for setting the sequence of processing in the order of the shading section, the filter section, the image size changing section, the γ

-conversion section, the tone processing section, the editorial section, the printing section, the external interface section, the storage section, and then the plot section.