Struct ImageDecodeParams 

pub struct ImageDecodeParams {
    pub is_indexed: bool,
    pub bpc: Option<u8>,
    pub num_components: Option<u8>,
    pub target_dimension: Option<(u32, u32)>,
    pub width: u32,
    pub height: u32,
    pub pixel_limit: Option<u32>,
}

Additional parameters for decoding images.

Fields

is_indexed: bool

Whether the color space of the image is an indexed color space.

bpc: Option<u8>

The bits per component of the image, if that information is available.

num_components: Option<u8>

The components per channel of the image, if that information is available.

target_dimension: Option<(u32, u32)>

A target resolution for the image. Note that this is only a hint so that in case it’s possible, a version of the image will be extracted that is as close as possible to the hinted dimension.

width: u32

The width of the image as indicated by the image dictionary.

height: u32

The height of the image as indicated by the image dictionary.

pixel_limit: Option<u32>

The image pixel limit in force, if one is configured.

Set by Stream::decoded_image from the stream’s own context, not by the caller. A filter cannot read it for itself: the only dictionary it receives is /DecodeParms, which is Dict::default() when the stream has none – and that carries a context with no limits at all. The CCITT decoder’s own limit check was reading exactly that, so a stream without /DecodeParms skipped it entirely. (Codex, #1609.)

Trait Implementations

impl Clone for ImageDecodeParams

fn clone(&self) -> ImageDecodeParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ImageDecodeParams

fn default() -> ImageDecodeParams

Returns the “default value” for a type.

impl PartialEq for ImageDecodeParams

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ImageDecodeParams