Struct ChromaStats 

pub struct ChromaStats {
    pub mean_abs_dy: f32,
    pub mean_dy: f32,
    pub mean_abs_di: f32,
    pub mean_abs_dq: f32,
    pub mean_abs_dc: f32,
    pub chroma_cos: f32,
    pub sat1: f32,
    pub sat2: f32,
    pub chroma_rough: f32,
}

Chroma-plane statistics of the changed pixels, all normalized to 255. Separates recolors (coherent, smooth chroma movement) from content replacements (scattered chroma) on photographic edits where luminance correlation alone saturates.

Fields

mean_abs_dy: f32

Mean |ΔY| (luminance delta magnitude).

mean_dy: f32

Signed mean ΔY — a recolor often pushes luminance consistently in one direction, while a replacement balances out.

mean_abs_di: f32

Mean |ΔI|.

mean_abs_dq: f32

Mean |ΔQ|.

mean_abs_dc: f32

Mean chroma-delta magnitude √(ΔI²+ΔQ²).

chroma_cos: f32

Cosine between the chroma vectors of img1 and img2, weighted by their magnitudes. Near 1 = same hues, negative = coherent hue rotation.

sat1: f32

Mean chroma magnitude (saturation) in img1.

sat2: f32

Mean chroma magnitude in img2.

chroma_rough: f32

Roughness of the chroma-delta field: mean |∇|Δc|| between adjacent changed pixels over the std of |Δc|. Low = smooth recolor, high = patchy replacement.

Trait Implementations

impl Clone for ChromaStats

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ChromaStats

impl Debug for ChromaStats

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ChromaStats

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ChromaStats

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ChromaStats

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ChromaStats