Enum IdentificationUse 

#[non_exhaustive]
pub enum IdentificationUse {
    MetadataOnly,
    MatrixTrcSubstitution,
}

What operations an IccIdentification supports.

Always check this before deciding whether to skip a CMS — a profile can be recognized (primaries/transfer known) without being safe for fast-path substitution.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

MetadataOnly

Primaries and transfer are known, but the profile’s structure may require a full CMS for accurate conversion (e.g., LUT-based profiles, non-Bradford chromatic adaptation, Lab PCS). Use for metadata, format negotiation, and display — not for pixel math.

MatrixTrcSubstitution

Matrix+TRC substitution produces output equivalent to a full CMS within the tolerance used for identification. Safe to use for pixel conversion without a CMS backend.

Trait Implementations

impl Clone for IdentificationUse

fn clone(&self) -> IdentificationUse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IdentificationUse

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

Formats the value using the given formatter.

impl Hash for IdentificationUse

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

where __H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for IdentificationUse

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for IdentificationUse

impl Eq for IdentificationUse

impl StructuralPartialEq for IdentificationUse