Mode 2 - Sony XCL-U100 Technical Manual

(b) Image sharpening filter
Parts where the density varies such as edges are
emphasized by subtracting the secondary differentiation
from the target image. The following filter multiplies the
Laplacian filter of 8 proximity by a weighting
coefficient of 0.111, and then subtracts the value from
the original image, so the edges are emphasized while
controlling the sharpness level.
5.6.2.

Mode 2

Six patterns have been provided.
Filter type
Effect
1 Laplacian filter of 8 proximity
Detects edges.
2 Laplacian filter of 4 proximity
Detects edges.
3 Moving average filter
Blurs the image.
4 Weighted average filter
Blurs the image.
5 r direction edge detection filter
Detects top/bottom LowToHi pixels.
6 t direction edge detection filter
Detects left/right LowToHi pixels.
30
5. DSP Operation
–0.111 –0.111
–0.111 1.888
–0.111 –0.111
Factor
1 1 1
1 –8 1
1 1 1
0 1 0
1 –4 1
0 1 0
0.111 0.111 0.111
0.111 0.111 0.111
0.111 0.111 0.111
0.062 0.125 0.062
0.125 0.250 0.125
0.062 0.125 0.062
–1 –1 –1
0 0 0
1 1 1
–1 0 1
–1 0 1
–1 0 1
–0.111
–0.111
–0.111