Graphics.Color.Space.RGB.Luma

Luma

pattern Y' :: e -> Color (Y' cs) e

Constructor for Luma Y`. (Not to be confused with luminance Y)

Since: 0.1.0

pattern Y'A :: e -> e -> Color (Alpha (Y' cs)) e

Constructor for Y` with alpha channel. (Not to be confused with luminance Y)

Since: 0.1.4

pattern Luma :: Color X e -> Color (Y' cs) e

data Y' (cs :: Linearity -> Type)

Luma of a non-linear gamma corrected RGB color space. (Not to be confused with luminance Y)

Instances

(Typeable cs, Illuminant i, ColorSpace (cs 'Linear) i e, ColorSpace (cs 'NonLinear) i e, Luma cs, RedGreenBlue cs i) => ColorSpace (Y' cs) (i :: k) e

Defined in Graphics.Color.Space.RGB.Luma

Associated Types

type BaseModel (Y' cs)

type BaseSpace (Y' cs)

Methods

toBaseModel :: Color (Y' cs) e -> Color (BaseModel (Y' cs)) e

fromBaseModel :: Color (BaseModel (Y' cs)) e -> Color (Y' cs) e

toBaseSpace :: Color (Y' cs) e -> Color (BaseSpace (Y' cs)) e

fromBaseSpace :: Color (BaseSpace (Y' cs)) e -> Color (Y' cs) e

luminance :: (Elevator a, RealFloat a) => Color (Y' cs) e -> Color (Y i) a

toColorXYZ :: (Elevator a, RealFloat a) => Color (Y' cs) e -> Color (XYZ i) a

fromColorXYZ :: (Elevator a, RealFloat a) => Color (XYZ i) a -> Color (Y' cs) e

Functor (Color (Y' cs))

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

fmap :: (a -> b) -> Color (Y' cs) a -> Color (Y' cs) b

(<$) :: a -> Color (Y' cs) b -> Color (Y' cs) a

Applicative (Color (Y' cs))

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

pure :: a -> Color (Y' cs) a

(<*>) :: Color (Y' cs) (a -> b) -> Color (Y' cs) a -> Color (Y' cs) b

liftA2 :: (a -> b -> c) -> Color (Y' cs) a -> Color (Y' cs) b -> Color (Y' cs) c

(*>) :: Color (Y' cs) a -> Color (Y' cs) b -> Color (Y' cs) b

(<*) :: Color (Y' cs) a -> Color (Y' cs) b -> Color (Y' cs) a

Foldable (Color (Y' cs))

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

fold :: Monoid m => Color (Y' cs) m -> m

foldMap :: Monoid m => (a -> m) -> Color (Y' cs) a -> m

foldMap' :: Monoid m => (a -> m) -> Color (Y' cs) a -> m

foldr :: (a -> b -> b) -> b -> Color (Y' cs) a -> b

foldr' :: (a -> b -> b) -> b -> Color (Y' cs) a -> b

foldl :: (b -> a -> b) -> b -> Color (Y' cs) a -> b

foldl' :: (b -> a -> b) -> b -> Color (Y' cs) a -> b

foldr1 :: (a -> a -> a) -> Color (Y' cs) a -> a

foldl1 :: (a -> a -> a) -> Color (Y' cs) a -> a

toList :: Color (Y' cs) a -> [a]

null :: Color (Y' cs) a -> Bool

length :: Color (Y' cs) a -> Int

elem :: Eq a => a -> Color (Y' cs) a -> Bool

maximum :: Ord a => Color (Y' cs) a -> a

minimum :: Ord a => Color (Y' cs) a -> a

sum :: Num a => Color (Y' cs) a -> a

product :: Num a => Color (Y' cs) a -> a

Traversable (Color (Y' cs))

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

traverse :: Applicative f => (a -> f b) -> Color (Y' cs) a -> f (Color (Y' cs) b)

sequenceA :: Applicative f => Color (Y' cs) (f a) -> f (Color (Y' cs) a)

mapM :: Monad m => (a -> m b) -> Color (Y' cs) a -> m (Color (Y' cs) b)

sequence :: Monad m => Color (Y' cs) (m a) -> m (Color (Y' cs) a)

(Typeable cs, Elevator e) => ColorModel (Y' cs) e

Y` - as a color model

Defined in Graphics.Color.Space.RGB.Luma

Associated Types

type Components (Y' cs) e

Methods

toComponents :: Color (Y' cs) e -> Components (Y' cs) e

fromComponents :: Components (Y' cs) e -> Color (Y' cs) e

showsColorModelName :: Proxy (Color (Y' cs) e) -> ShowS

Eq e => Eq (Color (Y' cs) e)

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

(==) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

(/=) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

Ord e => Ord (Color (Y' cs) e)

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

compare :: Color (Y' cs) e -> Color (Y' cs) e -> Ordering

(<) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

(<=) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

(>) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

(>=) :: Color (Y' cs) e -> Color (Y' cs) e -> Bool

max :: Color (Y' cs) e -> Color (Y' cs) e -> Color (Y' cs) e

min :: Color (Y' cs) e -> Color (Y' cs) e -> Color (Y' cs) e

(Typeable cs, Elevator e) => Show (Color (Y' cs) e)

Y` - as a color model

Defined in Graphics.Color.Space.RGB.Luma

Methods

showsPrec :: Int -> Color (Y' cs) e -> ShowS

show :: Color (Y' cs) e -> String

showList :: [Color (Y' cs) e] -> ShowS

Storable e => Storable (Color (Y' cs) e)

Y` - luma of a color space

Defined in Graphics.Color.Space.RGB.Luma

Methods

sizeOf :: Color (Y' cs) e -> Int

alignment :: Color (Y' cs) e -> Int

peekElemOff :: Ptr (Color (Y' cs) e) -> Int -> IO (Color (Y' cs) e)

pokeElemOff :: Ptr (Color (Y' cs) e) -> Int -> Color (Y' cs) e -> IO ()

peekByteOff :: Ptr b -> Int -> IO (Color (Y' cs) e)

pokeByteOff :: Ptr b -> Int -> Color (Y' cs) e -> IO ()

peek :: Ptr (Color (Y' cs) e) -> IO (Color (Y' cs) e)

poke :: Ptr (Color (Y' cs) e) -> Color (Y' cs) e -> IO ()

newtype Color (Y' cs) e

Constructor for Luma.

Defined in Graphics.Color.Space.RGB.Luma

newtype Color (Y' cs) e = Luma (Color X e)

type BaseModel (Y' cs)

Defined in Graphics.Color.Space.RGB.Luma

type BaseModel (Y' cs) = X

type BaseSpace (Y' cs)

Defined in Graphics.Color.Space.RGB.Luma

type BaseSpace (Y' cs) = cs 'NonLinear

type Components (Y' cs) e

Defined in Graphics.Color.Space.RGB.Luma

type Components (Y' cs) e = e

class Luma (cs :: Linearity -> Type) where

Minimal complete definition

rWeight, gWeight | rWeight, bWeight | gWeight, bWeight

Methods

rWeight :: RealFloat e => Weight cs e

gWeight :: RealFloat e => Weight cs e

bWeight :: RealFloat e => Weight cs e

Instances

Luma BT601_625

Defined in Graphics.Color.Space.RGB.ITU.Rec601

Methods

rWeight :: RealFloat e => Weight BT601_625 e

gWeight :: RealFloat e => Weight BT601_625 e

bWeight :: RealFloat e => Weight BT601_625 e

Luma BT601_525

Defined in Graphics.Color.Space.RGB.ITU.Rec601

Methods

rWeight :: RealFloat e => Weight BT601_525 e

gWeight :: RealFloat e => Weight BT601_525 e

bWeight :: RealFloat e => Weight BT601_525 e

Luma BT709

Defined in Graphics.Color.Space.RGB.ITU.Rec709

Methods

rWeight :: RealFloat e => Weight BT709 e

gWeight :: RealFloat e => Weight BT709 e

bWeight :: RealFloat e => Weight BT709 e

Luma SRGB

Defined in Graphics.Color.Space.RGB.SRGB

Methods

rWeight :: RealFloat e => Weight SRGB e

gWeight :: RealFloat e => Weight SRGB e

bWeight :: RealFloat e => Weight SRGB e

Luma (SRGB i)

Defined in Graphics.Color.Space.RGB.Derived.SRGB

Methods

rWeight :: RealFloat e => Weight (SRGB i) e

gWeight :: RealFloat e => Weight (SRGB i) e

bWeight :: RealFloat e => Weight (SRGB i) e

newtype Weight cs e

Constructors

Weight

Fields

• unWeight :: e

Instances

Functor (Weight cs)

Defined in Graphics.Color.Space.RGB.Luma

Methods

fmap :: (a -> b) -> Weight cs a -> Weight cs b

(<$) :: a -> Weight cs b -> Weight cs a

Eq e => Eq (Weight cs e)

Defined in Graphics.Color.Space.RGB.Luma

Methods

(==) :: Weight cs e -> Weight cs e -> Bool

(/=) :: Weight cs e -> Weight cs e -> Bool

Floating e => Floating (Weight cs e)

Defined in Graphics.Color.Space.RGB.Luma

Methods

pi :: Weight cs e

exp :: Weight cs e -> Weight cs e

log :: Weight cs e -> Weight cs e

sqrt :: Weight cs e -> Weight cs e

(**) :: Weight cs e -> Weight cs e -> Weight cs e

logBase :: Weight cs e -> Weight cs e -> Weight cs e

sin :: Weight cs e -> Weight cs e

cos :: Weight cs e -> Weight cs e

tan :: Weight cs e -> Weight cs e

asin :: Weight cs e -> Weight cs e

acos :: Weight cs e -> Weight cs e

atan :: Weight cs e -> Weight cs e

sinh :: Weight cs e -> Weight cs e

cosh :: Weight cs e -> Weight cs e

tanh :: Weight cs e -> Weight cs e

asinh :: Weight cs e -> Weight cs e

acosh :: Weight cs e -> Weight cs e

atanh :: Weight cs e -> Weight cs e

log1p :: Weight cs e -> Weight cs e

expm1 :: Weight cs e -> Weight cs e

log1pexp :: Weight cs e -> Weight cs e

log1mexp :: Weight cs e -> Weight cs e

Fractional e => Fractional (Weight cs e)

Defined in Graphics.Color.Space.RGB.Luma

Methods

(/) :: Weight cs e -> Weight cs e -> Weight cs e

recip :: Weight cs e -> Weight cs e

fromRational :: Rational -> Weight cs e

Num e => Num (Weight cs e)

Defined in Graphics.Color.Space.RGB.Luma

Methods

(+) :: Weight cs e -> Weight cs e -> Weight cs e

(-) :: Weight cs e -> Weight cs e -> Weight cs e

(*) :: Weight cs e -> Weight cs e -> Weight cs e

negate :: Weight cs e -> Weight cs e

abs :: Weight cs e -> Weight cs e

signum :: Weight cs e -> Weight cs e

fromInteger :: Integer -> Weight cs e

Show e => Show (Weight cs e)

Defined in Graphics.Color.Space.RGB.Luma

Methods

showsPrec :: Int -> Weight cs e -> ShowS

show :: Weight cs e -> String

showList :: [Weight cs e] -> ShowS

newtype Weights e

Weights imposed on individual channels of a 3-component color

Since: 0.1.0

Constructors

Weights

Fields

• unWeights :: V3 e

Instances

Functor Weights

Defined in Graphics.Color.Model.X

Methods

fmap :: (a -> b) -> Weights a -> Weights b

(<$) :: a -> Weights b -> Weights a

Eq e => Eq (Weights e)

Defined in Graphics.Color.Model.X

Methods

(==) :: Weights e -> Weights e -> Bool

(/=) :: Weights e -> Weights e -> Bool

Floating e => Floating (Weights e)

Defined in Graphics.Color.Model.X

Methods

pi :: Weights e

exp :: Weights e -> Weights e

log :: Weights e -> Weights e

sqrt :: Weights e -> Weights e

(**) :: Weights e -> Weights e -> Weights e

logBase :: Weights e -> Weights e -> Weights e

sin :: Weights e -> Weights e

cos :: Weights e -> Weights e

tan :: Weights e -> Weights e

asin :: Weights e -> Weights e

acos :: Weights e -> Weights e

atan :: Weights e -> Weights e

sinh :: Weights e -> Weights e

cosh :: Weights e -> Weights e

tanh :: Weights e -> Weights e

asinh :: Weights e -> Weights e

acosh :: Weights e -> Weights e

atanh :: Weights e -> Weights e

log1p :: Weights e -> Weights e

expm1 :: Weights e -> Weights e

log1pexp :: Weights e -> Weights e

log1mexp :: Weights e -> Weights e

Fractional e => Fractional (Weights e)

Defined in Graphics.Color.Model.X

Methods

(/) :: Weights e -> Weights e -> Weights e

recip :: Weights e -> Weights e

fromRational :: Rational -> Weights e

Num e => Num (Weights e)

Defined in Graphics.Color.Model.X

Methods

(+) :: Weights e -> Weights e -> Weights e

(-) :: Weights e -> Weights e -> Weights e

(*) :: Weights e -> Weights e -> Weights e

negate :: Weights e -> Weights e

abs :: Weights e -> Weights e

signum :: Weights e -> Weights e

fromInteger :: Integer -> Weights e

Elevator e => Show (Weights e)

Defined in Graphics.Color.Model.X

Methods

showsPrec :: Int -> Weights e -> ShowS

show :: Weights e -> String

showList :: [Weights e] -> ShowS

rgbLuma :: forall cs i e' e. (Luma cs, RedGreenBlue cs i, Elevator e', Elevator e, RealFloat e) => Color (cs 'NonLinear) e' -> Color (Y' cs) e

Convert a non-linear RGB pixel to a luma pixel

Since: 0.1.0

rgbLumaWeights :: forall cs e' e. (Luma cs, RealFloat e) => Color (cs 'NonLinear) e' -> Weights e

Get the weights of a non-linear RGB color space that can be used for converting to Luma

Since: 0.1.4

toBaseLinearSpace :: forall cs e i. (RedGreenBlue cs i, Applicative (Color (cs 'Linear)), RealFloat e) => Color (Y' cs) e -> Color (cs 'Linear) e

Convert Luma directly into the linear version of base space. This is equivalent to `dcctf . toBaseSpace`, but is a bit faster, since inverse transfer function is applied only once

Since: 0.3.0