Image encrypting method, image encrypting device, recording...

Details Image encrypting method, image encrypting device, recording... Image encrypting method, image encrypting device, recording...

2005-08-30

2005-08-30

Rones, Charles (Department: 2165)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C713S179000

Reexamination Certificate

active

06938028

ABSTRACT:
An image encrypting method, an image encrypting device, a recording medium on which image encrypting procedures are recorded, and a recording medium on which an encrypted image file is recorded are provided in order to be able to respond to a request for transmission of a portion of an image and improve a rate of processing image data, even when a device which stores the encrypted image file is not authorized to decrypt. An image inputting device reads an image file. An image portion unit dividing device divides a read image file into a portion image data of tile units. An encrypting device encrypts the portion image data. An identifier generating device generates information incidental to the portion image data. A file generating device generates a single image file from the incidental information and encrypted portion image data.

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patent: 5664030 (1997-09-01), Iizuka
patent: 5748805 (1998-05-01), Withgott et al.
patent: 5881287 (1999-03-01), Mast
patent: A5-199424 (1993-08-01), None
patent: A6-125553 (1994-05-01), None
patent: 9-114431 (1997-05-01), None

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