Image processing device and image input device equipped with a data synthesizing unit

• US 7,218,750 B1
• Filed: 05/01/2000
• Issued: 05/15/2007
• Est. Priority Date: 04/30/1999
• Status: Expired due to Fees

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Kakiuchi, Takashi, Hiraishi, Junji, Taniguchi, Keitaro
• Primary Examiner(s): Bali; Vikkram
• Application Number:
  US09/562,895
• Time in Patent Office: 2,570 Days
• Field of Search: 382/100, 382/115, 382/119, 382/124, 382/130, 382/135, 382/137, 382/138, 382/176, 382/209, 382/217, 382/218, 382/219, 380/54, 380/55, 380/201, 380/203, 902/7, 713/176
• US Class Current: 382/100
• CPC Class Codes: G06T 1/005 Robust watermarking, e.g. average attack or collusion attack resistant
• CPC Class Codes: G06T 2201/0065 Extraction of an embedded watermark; Reliable detection
• CPC Class Codes: G06V 10/40 Extraction of image or video features

Abstract

The object of this invention is to provide an image processing device and image input device which creates strong features, or enhanced pattern which could be recognized when the image was read and which would prove difficult to eliminate through subsequent image processing. When the image is generated at the later step, these features would be easily recognized by the processing according to this invention because the image is equipped with the enhanced pattern which is easy to detect. In order to achieve this object, the image processing device according to this invention is equipped with a data synthesizing unit to synthesize the clear target pattern on the candidate target pattern which is not fully clear when the recognition unit has detected a pattern similar to the target pattern.

Claims

1. An image processing device to process received data and to determine whether said received data includes restricted data which is restricted from being reproduced, the image processing device comprising:

an image recognition unit for recognizing a degraded candidate pattern in said received data, wherein said degraded candidate pattern resembles a target pattern included in said restricted data; and

a data synthesizing unit for reinforcing said degraded candidate pattern to be a substantial duplicate of said target pattern, wherein said reinforced candidate pattern is formed by superimposing said target pattern on said degraded candidate pattern.

2. An image processing device according to claim 1, wherein said data synthesizing unit reinforces said candidate pattern when there exists a predetermined degree of similarity between said candidate pattern and said target pattern.

3. An image processing device according to claim 1, wherein said reinforced candidate pattern is in the form of digital data.

4. An image processing device according to claim 3, wherein said digital data is an electronic watermark.

5. An image processing device according to claim 1, wherein said image processing device is a printer.

6. An image input device for receiving at an input a given image and for determining whether said given image includes restricted data which is restricted from being reproduced, the image input device comprising:

an image recognition unit for recognizing a degraded candidate pattern on said given image, wherein said degraded candidate pattern resembles a target pattern included in said restricted data; and

a data synthesizing unit for reinforcing said degraded candidate pattern to be a substantial duplicate of said target pattern, wherein said reinforced candidate pattern is formed by superimposing said target pattern on said degraded candidate pattern.

7. An image input device according to claim 6, wherein said image input device converts said given image to digital data.

8. An image input device according to claim 7, wherein said image input device is a scanner.

9. An image processing method for processing received data and determining whether said received data includes restricted data which is restricted from being reproduced, the method comprising:

recognizing a degraded candidate pattern in said received data, wherein said degraded candidate pattern resembles a target pattern included in restricted data; and

reinforcing said degraded candidate pattern to be a substantial duplicate of said target pattern by superimposing said target pattern on said degraded candidate pattern.