m66255fp Renesas Electronics Corporation., m66255fp Datasheet - Page 12

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m66255fp

Manufacturer Part Number
m66255fp
Description
8192 ? 10-bit Line Memory Fifo
Manufacturer
Renesas Electronics Corporation.
Datasheet

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M66255FP
Application Example
Laplacian Filter Circuit for Correction of Resolution in the Secondary Scanning Direction
REJ03F0249-0200 Rev.2.00 Sep 14, 2007
Page 12 of 13
Line (n + 1)
image data
B
Primary scanning
direction
N
A
B
M66255
M66255
D
D
D
D
to
to
1-line
1-line
delay
delay
0
9
0
9
Q
Q
Q
Q
to
to
0
9
0
9
Line (n − 1)
image data
A
Line (n − 1)
Line n
Line (n + 1)
× 2
Line n image data
N
N' = N + K { (N − A) + (N − B) }
= N + K {2N − (A + B)}
K: Laplacian coefficient
× K
Corrected
image data

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