Cryptography – Key management – Having particular key generator
Reexamination Certificate
2006-08-01
2006-08-01
Wu, Jingge (Department: 2625)
Cryptography
Key management
Having particular key generator
C382S232000, C380S269000
Reexamination Certificate
active
07085379
ABSTRACT:
An image compression apparatus capable of efficiently encoding an image without causing color deviation to the eye compresses luminance element image data and two types of chrominance element image data each consisting of a plurality of blocks. The image compression apparatus includes: a resolution determination processing section (38, 142) adaptively setting a resolution of each block during reduction according to a predetermined criterion for each of the luminance element image data and the two types of chrominance element image data, and creating resolution information; a data creation processing section (44) connected to the resolution determination processing section (38, 142), and creating data having each block reduced based on the resolution information for each of the luminance element image data and the two types of chrominance element image data; and an encoder (42, 48A,48B) connected to the resolution determination section (38, 142) and the data creation processing section (44), and encoding an output of each of the resolution information and the data creation processing section (44).
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Iwasaki Keisuke
Kagechi Kensaku
Saiga Hisashi
Conlin David G.
Edwards Angell Palmer & & Dodge LLP
Manus Peter J.
Sharp Kabushiki Kaisha
Tabatabai Abolfazl
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