Block matching circuit and data update method

Details Block matching circuit and data update method Block matching circuit and data update method

2008-09-05

2011-12-13

Worku, Negussie (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Scanning

C358S474000, C358S501000, C382S195000, C382S248000, C348S222100, C348S272000, C345S589000, C345S690000, C375S240160

Reexamination Certificate

active

08077363

ABSTRACT:
Scanning image data and target image data are respectively stored in a first storage area and a second storage area. In one case, (J−M+1)×(K−N+1)×M×N pieces of pixel data are stored as comparison image data relating to all comparison areas, and M×N pieces of pixel data are stored as target image data. In contrast, the present invention requires the storage only of J×K pieces of pixel data as scanning image data, and M×N pieces of pixel data as target image data. This means the number of pieces of pixel data to be stored is reduced. In the case discussed above, one piece of target image data and (J−M+1)×(K−N+1) pieces of pixel data relating to all comparison areas and corresponding to this target image data are stored. As compared to this case, the number of times pixel data are retrieved is reduced to 1/(M×N), thereby shortening processing speed.

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