0649261-A2 is referenced by 80 patents and cites 7 patents.

An image processing apparatus separates input image data into low resolution image data and one or more auxiliary image data for interpolating the low resolution image data, and decrypts at least one of the separated auxiliary image data. An image processing apparatus for separating input image data into low resolution image data and at least one auxiliary image data for interpolating the low resolution image data and decoding the image data with at least one of the auxiliary image data being encrypted decrypts the encrypted auxiliary image data and synthesizes the low resolution image data with the auxiliary image data.

Title
Image data processing and encrypting apparatus.
Application Number
EP19940307609 19941017
Publication Number
0649261 (A2)
Application Date
October 17, 1994
Publication Date
April 19, 1995
Inventor
Enari Masahiko C O Canon Kabus
JP
Assignee
Canon
JP
IPC
H04N 07/24
H04N 07/26
H04N 07/24
H04N 07/167
H04N 07/26
H04N 07/24
H04N 07/167
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