Image processing apparatus and method for combining different images and highest security level image

• US 7,619,782 B2
• Filed: 12/18/2006
• Issued: 11/17/2009
• Est. Priority Date: 12/22/2005
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Mikami, Fumio
• Primary Examiner(s): Rogers; Scott A
• Application Number:
  US11/612,285
• Publication Number:
  US 20070157827A1
• Time in Patent Office: 1,065 Days
• Field of Search: 358/1.9, 358/3.28, 358/1.14, 358/1.18, 358/501, 358/401, 358/450, 358/468, 399/366, 283/113, 283/902, 726/26, 726/32, 340/5.1, 340/5.2, 382/100
• US Class Current: 358/3.28
• CPC Class Codes: G03G 21/043 by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
• CPC Class Codes: G03G 2215/00299 Confidential, e.g. secret documents
• CPC Class Codes: G03G 2215/00932 Security copies
• CPC Class Codes: H04N 1/00883 Auto-copy-preventive originals, i.e. originals that are designed not to allow faithful reproduction

Abstract

Two or more designated images are combined (S1254), and the type of security process to be performed for the combined image is input (S1253). The security process is performed for the combined image by using the information associated with the input type of security process (S1255).

Claims

1. An image processing apparatus comprising:

a combination unit that combines a first image to a M-th (M≧

2) image to generate a (M+1)-th image; and

a processing unit that compares security levels of a first security image to a M-th security image which are set in order to protect securities of the first image to the M-th image respectively, and composing a security image having highest security level with the (M+1)-th image.

2. The apparatus according to claim 1, wherein composition processing of the security image is a processing of embedding digital watermark information or a processing of combining a copy-forgery-inhibited pattern image.

3. The apparatus according to claim 1, wherein if a target image to be combined is encrypted, said combination unit decrypts the target image and then combines the decrypted target image with another image.

4. An image processing method to be executed by an image processing apparatus comprising:

a combination step, executed by a combination unit of the image processing apparatus, of combining a first image to a M-th (M≧

2) image to generate a (M+1)-th image; and

a processing step, executed by a processing unit of the image processing apparatus, of comparing security levels of a first security image to a M-th security image which are set in order to protect securities of the first image to the M-th image respectively, and composing a security image having highest security level with the (M+1)-th image.

5. A computer-readable storage medium encoded with machine readable instructions for causing a computer to execute an image processing method, the method comprising:

a combination step, executed by a combination unit of the image processing apparatus, of combining a first image to a M-th (M≧

2) image to generate a (M+1)-th image; and

a processing step, executed by a processing unit of the image processing apparatus, of comparing security levels of a first security image to a M-th security image which are set in order to protect securities of the first image to the M-th image respectively, and composing a security image having highest security level with the (M+1)-th image.