Struct FilterParams 

pub struct FilterParams {
    pub predictor: Option<i32>,
    pub columns: Option<i32>,
    pub colors: Option<i32>,
    pub bits_per_component: Option<i32>,
    pub early_change: Option<bool>,
    pub k: Option<i32>,
    pub rows: Option<i32>,
    pub end_of_line: Option<bool>,
    pub encoded_byte_align: Option<bool>,
    pub black_is_1: Option<bool>,
    pub jbig2_globals: Option<Vec<u8>>,
}

Parameters for decode filters.

Not all fields apply to all filters. Unused fields are ignored.

Fields

predictor: Option<i32>

Predictor type for Flate/LZW (1=none, 2=TIFF, 10-15=PNG).

columns: Option<i32>

Number of columns per row (for predictors and CCITT).

colors: Option<i32>

Number of color components per sample (for predictors).

bits_per_component: Option<i32>

Bits per color component (for predictors).

early_change: Option<bool>

LZW early code size change (default: true per PDF spec).

k: Option<i32>

CCITT /K parameter: 0=Group3, <0=Group4, >0=mixed.

rows: Option<i32>

CCITT number of rows.

end_of_line: Option<bool>

CCITT end-of-line markers present.

encoded_byte_align: Option<bool>

CCITT byte-aligned encoding.

black_is_1: Option<bool>

CCITT black pixel representation.

jbig2_globals: Option<Vec<u8>>

JBIG2 global segments data (decoded bytes from /JBIG2Globals stream).

Trait Implementations

impl Clone for FilterParams

fn clone(&self) -> FilterParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterParams

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

Formats the value using the given formatter.

impl Default for FilterParams

fn default() -> FilterParams

Returns the “default value” for a type.