Image processing apparatus with forgery prevention system

• US 5,424,807 A
• Filed: 09/27/1994
• Issued: 06/13/1995
• Est. Priority Date: 10/25/1988
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ohmura, Hiroshi
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Horgan, Christopher
• Application Number:
  US08/319,550
• Time in Patent Office: 259 Days
• Field of Search: 283/902, 355/201, 355/206, 380/3, 380/4, 380/5, 380/54, 382/7, 382/30, 382/34
• US Class Current: 399/366
• CPC Class Codes: H04N 1/00352 Input means H04N1/00411 takes precedence; input arrangements for computers G06F3/00
• CPC Class Codes: H04N 1/00384 Key input means, e.g. buttons or keypads electromechanical details of key input means in general H01H13/00
• CPC Class Codes: H04N 1/00397 Switches, knobs or the like
• CPC Class Codes: H04N 1/00411 the display also being used for user input, e.g. touch screen
• CPC Class Codes: H04N 1/00437 Intelligent menus, e.g. anticipating user selections
• 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 1/00854 Recognising an unauthorised user or user-associated action
• 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 1/00872 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: Y10S 283/902 Anti-photocopy

Abstract

The present invention relates to an image processing apparatus and a method therefor for processing an input image and recording it on a recording medium. In particular, a predetermined original is registered in order to prevent bank bills or securities from being forged by color copying so that an original which is determined to be in coincidence with the registered original is subjected to a different processing from a usual processing.

Claims

1. An image processing apparatus comprising:

(a) input means for inputting image data, the image data comprising at least one of first image data and second image data;

(b) memory means for storing reference data in accordance with the first image data input by said input means;

(c) determination means for determining if an original represented by the second image data input by said input means has a predetermined visual pattern on the basis of the reference data stored in said memory means;

(d) mode setting means for setting a first mode in which the first image data is stored in said memory means as the reference data for the determination by said determination means and a second mode in which the determination by said determination means is performed by using the second image data input by said input means and the reference data stored in said memory means;

(e) discrimination means for discriminating whether an operator is permitted to set the first mode by said mode setting means in order to limit a person who can make said memory means store the first image data as the reference data; and

(f) control means for controlling the mode setting by said mode setting means in accordance with the discrimination result by said discrimination means.

2. An image processing apparatus according to claim 1, further comprising:

(f) area appointing means for appointing an area of an original image represented by said first image data input by said input means;

wherein said memory means stores appointed image data of the area appointed by said area appointing means.

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

(g) conversion means for converting the input image data inputted by said input means into pattern data;

wherein said memory means stores the pattern data converted by said conversion means.

4. An image processing apparatus according to claim 3, wherein the pattern comprises binary data.

5. An image processing apparatus according to claim 1, wherein said determination means comprises comparison means for making a comparison between the second image data input by said input means and the reference data stored in said memory means.

6. An image processing apparatus according to claim 5, wherein said control means controls to stop image forming processing in accordance with an output from said determination means.

7. An image processing apparatus according to claim 5, further comprising control means for changing image forming processing in accordance with an output from said determination means.

8. An image processing apparatus according to claim 7, wherein the change in the image forming processing comprises solely a black color output.

9. An image processing apparatus according to claim 1, wherein said input means comprises an image reading apparatus including a CCD sensor.

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

(h) change means for changing the reference data stored in said memory means.

11. An image processing apparatus according to claim 10, wherein said change means comprises permitting means for permitting a specific person to rewrite the reference data.

12. An image processing apparatus according to claim 11, wherein said permitting means permits the writing in accordance with an identification card.

13. An image processing apparatus according to claim 11, wherein said permitting means permits the rewriting in accordance with an code input.

14. An image processing apparatus according to claim 1, wherein said image processing apparatus comprises electronic photography processing.

15. An image processing apparatus according to claim 1, wherein said memory means comprises a random access memory (RAM).

16. An image processing apparatus for inhibiting accurate reproduction of an input image when the input image is determined to be an original having a predetermined visual pattern, comprising:

(a) memory means for storing first reference data for inhibiting the accurate reproduction, the first reference data being related to a first kind of original;

(b) selectively operable writing means for writing second reference data into said memory means, the second reference data being related to a second kind of original different from the first kind of original;

(c) discrimination means for discriminating whether an operator is permitted to selectively operate said writing means in order to limit a person who can make said memory means store the first reference data; and

(d) control means for controlling the writing means in accordance with the discrimination result by said discrimination means.

17. An image processing apparatus according to claim 16, further comprising:

(c) input means for inputting image data, wherein the second reference data written by said writing means is inputted by said input means.

18. An image processing apparatus according to claim 17, further comprising mode setting means for setting a mode in which writing is performed by said writing means.

19. An image processing apparatus according to claim 17, further comprising:

(d) conversion means for converting the image data inputted by said input means into pattern data;

wherein said memory means stores the pattern data converted by said conversion means.

20. An image processing apparatus according to claim 17, further comprising:

(e) comparison means for comparing the image data input by said input means at the time of a predetermined image forming operation and the reference data stored in said memory means.

21. An image processing apparatus according to claim 20, wherein said apparatus controls to stop the image forming processing in accordance with an output from said comparison means.

22. An image processing apparatus according to claim 20, wherein said apparatus changes image forming processing in accordance with an output from said comparison means.

23. An image processing apparatus according to claim 22, wherein said change in said image forming processing is to employ a sole black color output.

24. An image processing apparatus according to claim 18, wherein said mode setting means comprises permitting means for permitting a specific person to rewrite the reference data.

25. An image processing apparatus according to claim 24, wherein said mode setting means sets the mode on the basis of an ID card.

26. An image processing apparatus according to claim 24, wherein said mode setting means sets the mode on the basis of a code input.

27. An image processing apparatus comprising:

(a) input means for inputting image data, the image data comprising at least one of first image data and second image data;

(b) memory means for storing reference data in accordance with the first image data input by said input means;

(c) process means for processing the second image data and generating reproduction data for image forming;

(d) determination means for determining if an original represented by the second image data input by said input means has a predetermined pattern on the basis of the reference data stored in said memory means;

(e) first control means for controlling a condition of said image processing apparatus in accordance with the determination of said determination means;

(f) mode setting means for setting a first mode in which the first image data is stored in said memory means as the reference data for the determination by said determination means and a second mode in which the determination by said determination means is performed by using the second-image data input by said input means and the reference data stored in said memory means;

(g) discrimination means for discriminating whether an operator is permitted to set the first mode by said mode setting means in order to limit a person who can make said memory means store the first image data as the reference data; and

(h) second control means for controlling the mode setting by said mode setting means in accordance with the discrimination results by said discriminating means.

28. An image processing apparatus according to claim 27, further comprising:

(g) area appointing means for appointing an area for the input image data input by said input means;

wherein said memory means stores appointed image data of the area appointed by said area appointing means.

29. An image processing apparatus according to claim 27, further comprising:

(h) conversion means for converting the input image data input by said input means into pattern data;

wherein said memory means stores the pattern data converted by said conversion means.

30. An image processing apparatus according to claim 29, wherein the pattern data comprises binary data.

31. An image processing apparatus according to claim 27,

wherein said determination means comprises comparison means for making a comparison between the second image data input by said input means at the time of a predetermined image forming operation and the reference data stored in the memory means.

32. An image processing apparatus according to claim 31, wherein said first control means controls to stop the image forming processing in accordance with an output from said determination means.

33. An image processing apparatus according to claim 31, wherein said first control means changes image forming processing in accordance with an output from said determination means.

34. An image processing apparatus according to claim 33, wherein said change in said image forming processing is to employ a sole black color output.

35. An image processing apparatus according to claim 27, wherein said mode setting means comprises permitting means for permitting a specific person can rewrite the reference data.

36. An image processing apparatus according to claim 35, wherein said permission of change is conducted by using an ID card.

37. An image processing apparatus according to claim 35, wherein said permission of change is conducted by using code input.

38. A method for changing reference data for inhibiting an accurate reproduction of an input image by a copying apparatus on the basis of comparison between reference data, the reference data comprising at least one of first and second reference data, and input image data, comprising the steps of:

(a) discriminating whether an operator is permitted to change the reference data in order to limit a person who can change the reference data;

(b) setting the apparatus in a condition for changing the reference data in accordance with the discrimination result of said discrimination step;

(c) canceling the first reference data which have been used for comparison and which are related to a first kind of original; and

(d) setting second reference data to the apparatus, the second reference data being related to a second kind of original different from the first kind of original.

39. A method according to claim 38, wherein the reference data is input by image reading means.

40. A method according to claim 38, wherein the reference data comprises predetermined pattern data.

41. A method according to claim 38, wherein the condition for changing the reference data is set by an operation panel.

42. A method according to claim 38, wherein the reference data is input by image reading means and then stored into a memory.

43. A method according to claim 38, wherein the reference data comprises a predetermined pattern data.

44. A method for changing reference data for inhibiting an accurate output of an input image by an image processing apparatus on the basis of comparison between reference data stored in a memory and input image data, comprising the steps of:

(a) discriminating whether an operator is permitted to change the reference data stored in the memory in order to limit a person who can change the reference data; and

(b) changing the reference data stored in the memory in accordance with the discrimination result of said discrimination step.

45. A method according to claim 44, wherein the reference data is input by image reading means.

46. A method according to claim 44, wherein the reference data comprises predetermined visual pattern data.

47. A method according to claim 44, wherein the condition for changing the reference data is set by an operation panel.

48. An image processing apparatus for inhibiting accurate output of an input image when the input image is determined to be an original having a predetermined visual pattern, comprising:

(a) input means for inputting image data representing the original;

(b) area appointing means for appointing an area of the original; and

(c) memory means for storing reference data for inhibiting the accurate output in accordance with the input image data within the area appointed by said area appointing means.

49. An apparatus according to claim 48, further comprising mode setting means for setting a mode in which storing of the reference data is performed.

50. An apparatus according to claim 48, further comprising:

(d) conversion means for converting the image data input by said input means into pattern data,

wherein said memory means stores the pattern data converted by said conversion means.

51. An apparatus according to claim 48, further comprising:

(e) comparison means for comparing the image data input by said input means at the time of a predetermined image forming operation and the reference data stored in said memory means.

52. An apparatus according to claim 51, wherein said apparatus controls to stop the image forming processing in accordance with an output from said comparison means.

53. An apparatus according to claim 51, wherein said apparatus changes image forming processing in accordance with an output from said comparison means.

54. An apparatus according to claim 49, wherein said mode setting means comprises permitting means for permitting a specific person to rewrite the reference data.

55. An apparatus according to claim 54, wherein said mode setting means sets the mode on the basis of an ID card.

56. An apparatus according to claim 54, wherein said mode setting means sets the mode on the basis of a code input.