[−][src]Struct img_hash_median::ImageHash
A struct representing an image processed by a perceptual hash. For efficiency, does not retain a copy of the image data after hashing.
Get an instance with ImageHash::hash().
Implementations
impl<B: HashBytes> ImageHash<B>[src]
pub fn as_bytes(&self) -> &[u8][src]
Get the bytes of this hash.
pub fn dist(&self, other: &Self) -> u32[src]
Calculate the Hamming distance between this and other.
Equivalent to counting the 1-bits of the XOR of the two hashes.
Essential to determining the perceived difference between self and other.
Note
This return value is meaningless if these two hashes are from different hash sizes or algorithms.
pub fn from_base64(encoded_hash: &str) -> Result<ImageHash<B>, DecodeError>[src]
Create an ImageHash instance from the given Base64-encoded string.
Errors:
Returns DecodeError::InvalidLength if the decoded bytes can't fit in B.
pub fn to_base64(&self) -> String[src]
Get a Base64 string representing the bits of this hash.
Mostly for printing convenience.
Trait Implementations
impl<B: Clone> Clone for ImageHash<B>[src]
impl<B: Debug> Debug for ImageHash<B>[src]
impl<B: Eq> Eq for ImageHash<B>[src]
impl<B: Hash> Hash for ImageHash<B>[src]
fn hash<__H: Hasher>(&self, state: &mut __H)[src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, 1.3.0[src]
H: Hasher,
impl<B: PartialEq> PartialEq<ImageHash<B>> for ImageHash<B>[src]
impl<B> StructuralEq for ImageHash<B>[src]
impl<B> StructuralPartialEq for ImageHash<B>[src]
Auto Trait Implementations
impl<B> RefUnwindSafe for ImageHash<B> where
B: RefUnwindSafe,
B: RefUnwindSafe,
impl<B> Send for ImageHash<B> where
B: Send,
B: Send,
impl<B> Sync for ImageHash<B> where
B: Sync,
B: Sync,
impl<B> Unpin for ImageHash<B> where
B: Unpin,
B: Unpin,
impl<B> UnwindSafe for ImageHash<B> where
B: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> Pointable for T
pub const ALIGN: usize
type Init = T
The type for initializers.
pub unsafe fn init(init: <T as Pointable>::Init) -> usize
pub unsafe fn deref<'a>(ptr: usize) -> &'a T
pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T
pub unsafe fn drop(ptr: usize)
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T[src]
pub fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,