Enum cv::imgcodecs::ImwritePngFlags

pub enum ImwritePngFlags {
    ImwritePngStrategyDefault,
    ImwritePngStrategyFiltered,
    ImwritePngStrategyHuffmanOnly,
    ImwritePngStrategyRle,
    ImwritePngStrategyFixed,
}

Imwrite PNG flag

Variants

ImwritePngStrategyDefault

Use this value for normal data.

ImwritePngStrategyFiltered

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.

ImwritePngStrategyHuffmanOnly

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

ImwritePngStrategyRle

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

ImwritePngStrategyFixed

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

Trait Implementations

impl PartialEq<ImwritePngFlags> for ImwritePngFlags

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

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

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Clone for ImwritePngFlags

fn clone(&self) -> ImwritePngFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ImwritePngFlags

impl Debug for ImwritePngFlags

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

Formats the value using the given formatter.