pub enum Fast {
Nine,
Twelve,
}
Expand description
Variants of the FAST corner detector. These classify a point based on its intensity relative to the 16 pixels in the Bresenham circle of radius 3 around it. A point P with intensity I is detected as a corner if all pixels in a sufficiently long contiguous section of this circle either all have intensity greater than I + t or all have intensity less than I - t, for some user-provided threshold t. The score of a corner is the greatest threshold for which the given pixel still qualifies as a corner.
Variants
Nine
Corners require a section of length as least nine.
Twelve
Corners require a section of length as least twelve.
Auto Trait Implementations
impl RefUnwindSafe for Fast
impl Send for Fast
impl Sync for Fast
impl Unpin for Fast
impl UnwindSafe for Fast
Blanket Implementations
sourceimpl<Src, Scheme> ApproxFrom<Src, Scheme> for Src where
Scheme: ApproxScheme,
impl<Src, Scheme> ApproxFrom<Src, Scheme> for Src where
Scheme: ApproxScheme,
sourcefn approx_from(src: Src) -> Result<Src, <Src as ApproxFrom<Src, Scheme>>::Err>
fn approx_from(src: Src) -> Result<Src, <Src as ApproxFrom<Src, Scheme>>::Err>
Convert the given value into an approximately equivalent representation.
sourceimpl<Dst, Src, Scheme> ApproxInto<Dst, Scheme> for Src where
Dst: ApproxFrom<Src, Scheme>,
Scheme: ApproxScheme,
impl<Dst, Src, Scheme> ApproxInto<Dst, Scheme> for Src where
Dst: ApproxFrom<Src, Scheme>,
Scheme: ApproxScheme,
type Err = <Dst as ApproxFrom<Src, Scheme>>::Err
type Err = <Dst as ApproxFrom<Src, Scheme>>::Err
The error type produced by a failed conversion.
sourcefn approx_into(self) -> Result<Dst, <Src as ApproxInto<Dst, Scheme>>::Err>
fn approx_into(self) -> Result<Dst, <Src as ApproxInto<Dst, Scheme>>::Err>
Convert the subject into an approximately equivalent representation.
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T, Dst> ConvAsUtil<Dst> for T
impl<T, Dst> ConvAsUtil<Dst> for T
sourcefn approx(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, DefaultApprox>,
fn approx(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, DefaultApprox>,
Approximate the subject with the default scheme.
sourcefn approx_by<Scheme>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, Scheme>,
Scheme: ApproxScheme,
fn approx_by<Scheme>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, Scheme>,
Scheme: ApproxScheme,
Approximate the subject with a specific scheme.
sourceimpl<T> ConvUtil for T
impl<T> ConvUtil for T
sourcefn approx_as<Dst>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, DefaultApprox>,
fn approx_as<Dst>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, DefaultApprox>,
Approximate the subject to a given type with the default scheme.
sourcefn approx_as_by<Dst, Scheme>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, Scheme>,
Scheme: ApproxScheme,
fn approx_as_by<Dst, Scheme>(self) -> Result<Dst, Self::Err> where
Self: ApproxInto<Dst, Scheme>,
Scheme: ApproxScheme,
Approximate the subject to a given type with a specific scheme.
impl<T> Pointable for T
impl<T> Pointable for T
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if self
is actually part of its subset T
(and can be converted to it).
fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts self
to the equivalent element of its superset.