Device and method for controlling a color image processing apparatus in which a predetermined pattern can be identified in an original

• US 5,434,649 A
• Filed: 01/14/1994
• Issued: 07/18/1995
• Est. Priority Date: 05/13/1988
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Outa, Ken-ichi, Sato, Yuichi, Masuda, Ryuichi, Hasuo, Kamon
• Primary Examiner(s): Beatty, Robert B.
• Assistant Examiner(s): LEE, SUSAN SHUK YIN
• Application Number:
  US08/181,068
• Time in Patent Office: 550 Days
• Field of Search: 355/201, 355/206, 355/133, 382/10, 382/14, 382/30, 382/34, 382/41, 382/48, 382/50, 382/56, 382/17, 382/7, 382/16, 382/20, 382/45, 382/46, 382/62, 382/38, 356/71, 356/394, 356/402, 283/70, 283/111, 283/92, 283/93, 283/114, 283/902
• US Class Current: 399/366
• CPC Class Codes: G03G 15/01 for producing multicoloured copies colour correction in photography G03C; colour correction in printing plate production
• CPC Class Codes: G03G 21/04 Preventing copies being made of an original
• CPC Class Codes: G03G 21/046 by discriminating a special original, e.g. a bank note
• CPC Class Codes: G07D 7/12 Visible light, infrared or ultraviolet radiation
• CPC Class Codes: G07D 7/17 Apparatus characterised by positioning means or by means responsive to positioning
• CPC Class Codes: H04N 1/00838 Preventing unauthorised reproduction
• CPC Class Codes: H04N 1/00843 based on recognising a copy prohibited original, e.g. a banknote pattern authentication and markers therefor, forgery detection G06V20/95; character recognition G06V30/10; document-oriented image-based pattern recognition G06V30/40; testing paper currency or similar valuable papers for genuineness G07D7/00
• CPC Class Codes: H04N 1/00846 based on detection of a dedicated indication, e.g. marks or the like
• CPC Class Codes: H04N 1/00848 by detecting a particular original
• CPC Class Codes: H04N 1/00859 Issuing an alarm or the like
• CPC Class Codes: H04N 1/00864 Modifying the reproduction, e.g. outputting a modified copy of a scanned original details of composing or otherwise geometrically modifying originals H04N1/387
• CPC Class Codes: H04N 1/00867 with additional data, e.g. by adding a warning message details of embedding additional information in an image H04N1/32144
• CPC Class Codes: H04N 1/00872 by image quality reduction, e.g. distortion or blacking out
• CPC Class Codes: H04N 1/00875 Inhibiting reproduction, e.g. by disabling reading or reproduction apparatus
• CPC Class Codes: H04N 1/506 Reproducing the colour component signals picture-sequentially, e.g. with reproducing heads spaced apart from one another in the subscanning direction
• CPC Class Codes: Y10S 283/902 Anti-photocopy

Abstract

A device that controls a color image processing apparatus receives color component signals representing an original, and extracts a pattern having a predetermined color from the original on the basis of the color component signals. The device determines whether the pattern includes a predetermined image registered in advance, and generates a control signal for controlling an image processing of the original on the basis of the determination result.

Claims

1. A device for controlling a color image processing apparatus comprising:

input means for inputting a plurality of color component signals representing an original;

extracting means for extracting a pattern having a predetermined color from the original, based on the plurality of color component signals;

determining means for determining whether the pattern having the predetermined color includes a predetermined image registered in advance; and

generation means for generating a control signal for controlling an image processing of the original, based on the determination result of said determining means.

2. A device according to claim 1, wherein the color component signals are signals which were generated by a CCD line sensor.

3. A device according to claim 1, wherein the color component signals are signals which were generated by a CCD line sensor and then uneven-illuminance corrected by a shading correction circuit.

4. A device according to claim 1, wherein the color component signals are digital image signals.

5. A device according to claim 1, wherein the color component signals are red, green and blue signals.

6. A device according to claim 1, wherein said extracting means includes a plurality of comparators respectively corresponding to the color component signals.

7. A device according to claim 1, wherein said extracting means includes compensating means for compensating an inclination of the pattern.

8. A device according to claim 1, wherein said determining means includes means for obtaining relativity between the pattern having the predetermined color and the predetermined image registered in advance.

9. A device according to claim 1, wherein the color component signals are input a plurality of times.

10. A device according to claim 9, wherein said determining means uses a plurality of different predetermined images as determination targets in each of the plural-time inputs.

11. A device according to claim 1, wherein said image processing apparatus is an image reading apparatus that stops a scanning operation in response to the control signal.

12. A device according to claim 1, wherein said image processing apparatus is an image forming apparatus.

13. A device according to claim 12, wherein said image forming apparatus stops a faithful image forming in response to the control signal.

14. A device according to claim 13, wherein said image forming apparatus stops an outputting of a processed image signal in response to the control signal.

15. A device according to claim 13, wherein said image forming apparatus paints a surface of an output image in response to the control signal.

16. A device according to claim 12, wherein said image forming apparatus is a laser beam printer.

17. A device according to claim 1, wherein said generating means is a central processing unit.

18. A method for controlling a color image processing comprising the steps of:

inputting a plurality of color component signals representing an original;

extracting a pattern having a predetermined color from the original, based on the plurality of color component signals;

determining whether the pattern having the predetermined color includes a predetermined image registered in advance; and

generating a control signal for controlling an image processing of the original, based on the determination result of said determining step.