Enum ColorSpace

#[non_exhaustive]
pub enum ColorSpace {
    RGB,
    RGBA,
    YCbCr,
    Luma,
    LumaA,
    YCCK,
    CMYK,
    BGR,
    BGRA,
    Unknown,
    ARGB,
    HSL,
    HSV,
}

All possible image colorspaces Some of them aren’t yet supported exist here.

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.

RGB

Red, Green , Blue

RGBA

Red, Green, Blue, Alpha

YCbCr

YUV colorspace

Luma

Grayscale colorspace

LumaA

Grayscale with alpha colorspace

YCCK

CMYK

Cyan , Magenta, Yellow, Black

BGR

Blue, Green, Red

BGRA

Blue, Green, Red, Alpha

Unknown

The colorspace is unknown

ARGB

Alpha Red Green Blue

HSL

Hue,Saturation,Lightness Conversion from RGB to HSL and back matches that of Python colorsys module Color type is expected to be in floating point

HSV

Hue, Saturation,Value

Conversion from RGB to HSV and back matches that of Python colorsys module Color type is expected to be in floating point

Implementations

impl ColorSpace

pub const fn num_components(&self) -> usize

Number of color channels present for a certain colorspace

E.g. RGB returns 3 since it contains R,G and B colors to make up a pixel

pub const fn has_alpha(&self) -> bool

pub const fn is_grayscale(&self) -> bool

pub const fn alpha_position(&self) -> Option<usize>

Returns the position of the alpha pixel in a pixel

That is for an array of color components say [0,1,2,3] if the image has an alpha channel and is in RGBA format, this will return Some(3), indicating alpha is found in the third index but if the image is in ARGB format, it will return Some(0) indicating alpha is found in
index 0

If an image doesn’t have an alpha channel returns None

Trait Implementations

impl Clone for ColorSpace

fn clone(&self) -> ColorSpace

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColorSpace

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

Formats the value using the given formatter.

impl PartialEq for ColorSpace

fn eq(&self, other: &ColorSpace) -> 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 ColorSpace

impl Eq for ColorSpace

impl StructuralPartialEq for ColorSpace