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Jbig2Config

jbig2enc_rust::jbig2structs

Struct Jbig2Config 

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pub struct Jbig2Config {
Show 42 fields
    pub generic: GenericRegionConfig,
    pub sd_template: u8,
    pub sd_at: [(i8, i8); 4],
    pub text_ds_offset: i8,
    pub text_refine: bool,
    pub text_log_strips: u8,
    pub text_ref_corner: u8,
    pub text_transposed: bool,
    pub text_comb_op: u8,
    pub text_refine_template: u8,
    pub halftone: HalftoneConfig,
    pub dpi: u32,
    pub symbol_mode: bool,
    pub refine: bool,
    pub refine_template: u8,
    pub duplicate_line_removal: bool,
    pub auto_thresh: bool,
    pub hash: bool,
    pub want_full_headers: bool,
    pub is_lossless: bool,
    pub default_pixel: bool,
    pub match_tolerance: u32,
    pub lossy_symbol_mode: LossySymbolMode,
    pub sym_unify_min_class_size: usize,
    pub sym_unify_max_err: u32,
    pub sym_unify_max_dx: i32,
    pub sym_unify_max_dy: i32,
    pub sym_unify_class_accept_limit: u32,
    pub sym_unify_core_close_threshold: u32,
    pub sym_unify_min_core_ratio_permille: u16,
    pub sym_unify_min_class_usage: usize,
    pub sym_unify_min_page_span: usize,
    pub sym_unify_min_estimated_gain: i32,
    pub sym_unify_context_mode: SymbolContextMode,
    pub sym_unify_border_score_slack: u32,
    pub sym_unify_score_rescue_slack: u32,
    pub sym_unify_max_border_outside_ink: u32,
    pub sym_unify_refine_min_subcluster_size: usize,
    pub sym_unify_refine_min_usage: usize,
    pub sym_unify_refine_min_page_span: usize,
    pub sym_unify_refine_max_score: u32,
    pub sym_unify_refine_min_gain: i32,

}
Expand description

Top-level configuration for JBIG2 encoding

Fields§

§generic: GenericRegionConfig§sd_template: u8§sd_at: [(i8, i8); 4]§text_ds_offset: i8§text_refine: bool§text_log_strips: u8§text_ref_corner: u8§text_transposed: bool§text_comb_op: u8§text_refine_template: u8§halftone: HalftoneConfig§dpi: u32§symbol_mode: bool§refine: bool§refine_template: u8§duplicate_line_removal: bool§auto_thresh: bool§hash: bool§want_full_headers: bool§is_lossless: bool§default_pixel: bool§match_tolerance: u32

Pixel-error tolerance divisor for symbol matching. max_err = (width * height) / match_tolerance Lower = more aggressive matching (smaller files, lower quality). Typical range: 4 (aggressive) to 10 (conservative). Default: 7.

§lossy_symbol_mode: LossySymbolMode§sym_unify_min_class_size: usize§sym_unify_max_err: u32§sym_unify_max_dx: i32§sym_unify_max_dy: i32§sym_unify_class_accept_limit: u32§sym_unify_core_close_threshold: u32§sym_unify_min_core_ratio_permille: u16§sym_unify_min_class_usage: usize§sym_unify_min_page_span: usize§sym_unify_min_estimated_gain: i32§sym_unify_context_mode: SymbolContextMode§sym_unify_border_score_slack: u32§sym_unify_score_rescue_slack: u32§sym_unify_max_border_outside_ink: u32§sym_unify_refine_min_subcluster_size: usize§sym_unify_refine_min_usage: usize§sym_unify_refine_min_page_span: usize§sym_unify_refine_max_score: u32§sym_unify_refine_min_gain: i32

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impl Jbig2Config

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pub fn new() -> Self

Creates a new configuration with default values

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pub fn text() -> Self

Creates a configuration optimized for text documents

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pub fn text_symbol_unify() -> Self

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pub fn uses_symbol_unify(&self) -> bool

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pub fn uses_lossy_symbol_dictionary(&self) -> bool

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pub fn lossless() -> Self

Creates a configuration for lossless image encoding

Trait Implementations§

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impl Clone for Jbig2Config

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fn clone(&self) -> Jbig2Config

Returns a duplicate 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 Jbig2Config

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

Formats the value using the given formatter. Read more
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impl Default for Jbig2Config

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fn default() -> Self

Returns the “default value” for a type. Read more

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