Enum jpeg_encoder::QuantizationTableType

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pub enum QuantizationTableType {
    Default,
    Flat,
    CustomMsSsim,
    CustomPsnrHvs,
    ImageMagick,
    KleinSilversteinCarney,
    DentalXRays,
    VisualDetectionModel,
    ImprovedDetectionModel,
    Custom(Box<[u16; 64]>),
}

Expand description

Quantization table used for encoding

Tables are based on tables from mozjpeg

Variants

`Default`

Sample quantization tables given in Annex K (Clause K.1) of Recommendation ITU-T T.81 (1992) | ISO/IEC 10918-1:1994.

`Flat`

Flat

`CustomMsSsim`

Custom, tuned for MS-SSIM

`CustomPsnrHvs`

Custom, tuned for PSNR-HVS

`ImageMagick`

ImageMagick table by N. Robidoux

From http://www.imagemagick.org/discourse-server/viewtopic.php?f=22&t=20333&p=98008#p98008

`KleinSilversteinCarney`

Relevance of human vision to JPEG-DCT compression (1992) Klein, Silverstein and Carney.

`DentalXRays`

DCTune perceptual optimization of compressed dental X-Rays (1997) Watson, Taylor, Borthwick

`VisualDetectionModel`

A visual detection model for DCT coefficient quantization (12/9/93) Ahumada, Watson, Peterson

`ImprovedDetectionModel`

An improved detection model for DCT coefficient quantization (1993) Peterson, Ahumada and Watson

`Custom(Box<[u16; 64]>)`

A user supplied quantization table

Trait Implementations

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impl Clone for QuantizationTableType

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fn clone(&self) -> QuantizationTableType

Returns a copy of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for QuantizationTableType

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for QuantizationTableType

impl Send for QuantizationTableType

impl Sync for QuantizationTableType

impl Unpin for QuantizationTableType

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum jpeg_encoder::QuantizationTableType

Quantization table used for encoding

Variants

Default

Flat

CustomMsSsim

CustomPsnrHvs

ImageMagick

KleinSilversteinCarney

DentalXRays

VisualDetectionModel

ImprovedDetectionModel

Custom(Box<[u16; 64]>)

Trait Implementations

impl Clone for QuantizationTableType

fn clone(&self) -> QuantizationTableType

fn clone_from(&mut self, source: &Self)

impl Debug for QuantizationTableType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Auto Trait Implementations

impl RefUnwindSafe for QuantizationTableType

impl Send for QuantizationTableType

impl Sync for QuantizationTableType

impl Unpin for QuantizationTableType

impl UnwindSafe for QuantizationTableType

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Default`

`Flat`

`CustomMsSsim`

`CustomPsnrHvs`

`ImageMagick`

`KleinSilversteinCarney`

`DentalXRays`

`VisualDetectionModel`

`ImprovedDetectionModel`

`Custom(Box<[u16; 64]>)`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,