| Safe Haskell | Safe-Inferred |
|---|---|
| Language | Haskell2010 |
Data.Array.Repa.Algorithms.Pixel
Description
Utilities for converting pixel color values.
NOTE: These functions are not polymorphic in the Float type because without assisatance, GHC does a bad job of converting Word8s to and from floats.
Synopsis
- floatRmsOfRGB8 :: (Word8, Word8, Word8) -> Float
- doubleRmsOfRGB8 :: (Word8, Word8, Word8) -> Float
- floatLuminanceOfRGB8 :: (Word8, Word8, Word8) -> Float
- doubleLuminanceOfRGB8 :: (Word8, Word8, Word8) -> Double
- rgb8OfGreyFloat :: Float -> (Word8, Word8, Word8)
- rgb8OfGreyDouble :: Double -> (Word8, Word8, Word8)
- rgb8OfFloat :: (Float, Float, Float) -> (Word8, Word8, Word8)
- rgb8OfDouble :: (Double, Double, Double) -> (Word8, Word8, Word8)
Documentation
floatRmsOfRGB8 :: (Word8, Word8, Word8) -> Float Source #
Compute the root mean square of an RGB color. Result is in the range [0..1].
doubleRmsOfRGB8 :: (Word8, Word8, Word8) -> Float Source #
Compute the root mean square of an RGB color. Result is in the range [0..1].
floatLuminanceOfRGB8 :: (Word8, Word8, Word8) -> Float Source #
Convert an RGB color to its luminance value. Result in the range [0..1].
doubleLuminanceOfRGB8 :: (Word8, Word8, Word8) -> Double Source #
Convert an RGB color to its luminance value. Result in the range [0..1].
rgb8OfGreyFloat :: Float -> (Word8, Word8, Word8) Source #
Promote a value in the range [0..1] to a grey RGB8 color.
rgb8OfGreyDouble :: Double -> (Word8, Word8, Word8) Source #
Promote a value in the range [0..1] to a grey RGB8 color.