Enum FingerprintPrecision 

pub enum FingerprintPrecision {
    SizeOnly = 0,
    Metadata = 1,
    ByteLevel = 2,
    MetaLevel = 3,
    Semantic = 4,
}

フィンガープリントが保持する情報の精度レベル。

上位ほど豊かな情報を持つ。Ord はこの序列に基づく。

注意: matches_within_location() の比較優先順序とは異なる。 matches_within_location() は信頼性順（byte_digest > content_digest > meta_digest）で比較するが、 この enum は情報量順（Semantic > MetaLevel > ByteLevel）で序列化する。 詳細はモジュールドキュメントを参照。

Variants

SizeOnly = 0

size のみ。同一サイズ・異内容のfalse positive リスクあり。

Metadata = 1

size + mtime。ストレージのタイムスタンプ精度に依存。

ByteLevel = 2

byte_digest (DJB2/sha256)。バイト列完全一致。

MetaLevel = 3

meta_digest (PNG tEXt, EXIF等)。埋め込みメタデータの同一性。

Semantic = 4

content_digest (PNG IHDR+IDAT 等)。ピクセルデータの意味的同一性。

Trait Implementations

impl Clone for FingerprintPrecision

fn clone(&self) -> FingerprintPrecision

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FingerprintPrecision

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

Formats the value using the given formatter.

impl Display for FingerprintPrecision

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

Formats the value using the given formatter.

impl Ord for FingerprintPrecision

fn cmp(&self, other: &FingerprintPrecision) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FingerprintPrecision

fn eq(&self, other: &FingerprintPrecision) -> 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 PartialOrd for FingerprintPrecision

fn partial_cmp(&self, other: &FingerprintPrecision) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for FingerprintPrecision

impl Eq for FingerprintPrecision

impl StructuralPartialEq for FingerprintPrecision