Steerable Filters
A Few Filters. Infinite Orientations.
cos
(
θ
)
∂
x
∂
G
(
x
,
y
)
+
sin
(
θ
)
∂
y
∂
G
(
x
,
y
)
=
∂
θ
∂
G
(
x
,
y
)
Steering angle
θ
=
0
Play
Steering angle from zero to two pi radians
0
π/2
π
3π/2
2π
Ready to steer.