Enum cv::imgcodecs::ImageWritePngStrategy

#[repr(C)]pub enum ImageWritePngStrategy {
    Default,
    Filtered,
    HuffmanOnly,
    RLE,
    Fixed,
}

Imwrite PNG flag. See documentation for detauls

Variants

Default

Use this value for normal data.

Filtered

Use this value for data produced by a filter (or predictor).Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better.

HuffmanOnly

Use this value to force Huffman encoding only (no string match).

RLE

Use this value to limit match distances to one (run-length encoding).

Fixed

Using this value prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications.

Trait Implementations

impl Clone for ImageWritePngStrategy

fn clone(&self) -> ImageWritePngStrategy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ImageWritePngStrategy

impl Debug for ImageWritePngStrategy

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

Formats the value using the given formatter.

impl Eq for ImageWritePngStrategy

impl Hash for ImageWritePngStrategy

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<ImageWritePngStrategy> for ImageWritePngStrategy

fn eq(&self, other: &ImageWritePngStrategy) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for ImageWritePngStrategy

impl StructuralPartialEq for ImageWritePngStrategy