Hoogle Search

Within LTS Haskell 24.25 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. data PixelYA8

   JuicyPixels	Codec.Picture

   Pixel type storing 8bit Luminance (Y) and alpha (A) information. Values are stored in the following order:

   • Luminance
   • Alpha

2. PixelYA8 :: Pixel8 -> Pixel8 -> PixelYA8

   JuicyPixels	Codec.Picture

   No documentation available.

3. data PixelYCbCr8

   JuicyPixels	Codec.Picture

   Pixel type storing 8bit luminance, blue difference and red difference (YCbCr) information. Values are stored in the following order:

   • Y (luminance)
   • Cb
   • Cr

4. PixelYCbCr8 :: Pixel8 -> Pixel8 -> Pixel8 -> PixelYCbCr8

   JuicyPixels	Codec.Picture

   No documentation available.

5. dynamicPixelMap :: (forall pixel . Pixel pixel => Image pixel -> Image pixel) -> DynamicImage -> DynamicImage

   JuicyPixels	Codec.Picture

   Equivalent of the pixelMap function for the dynamic images. You can perform pixel colorspace independant operations with this function. For instance, if you want to extract a square crop of any image, without caring about colorspace, you can use the following snippet.

   dynSquare :: DynamicImage -> DynamicImage
   dynSquare = dynamicPixelMap squareImage
   
   squareImage :: Pixel a => Image a -> Image a
   squareImage img = generateImage (\x y -> pixelAt img x y) edge edge
   where edge = min (imageWidth img) (imageHeight img)
   

6. imageIPixels :: (Pixel pxa, Pixel pxb) => Traversal (Image pxa) (Image pxb) (Int, Int, pxa) pxb

   JuicyPixels	Codec.Picture

   Traversal providing the pixel position with it's value. The traversal in raster order, from lef to right, then top to bottom. The traversal match pixelMapXY in spirit. Since 3.2.4

7. imagePixels :: (Pixel pxa, Pixel pxb) => Traversal (Image pxa) (Image pxb) pxa pxb

   JuicyPixels	Codec.Picture

   Traversal in "raster" order, from left to right the top to bottom. This traversal is matching pixelMap in spirit. Since 3.2.4

8. mixWith :: Pixel a => (Int -> PixelBaseComponent a -> PixelBaseComponent a -> PixelBaseComponent a) -> a -> a -> a

   JuicyPixels	Codec.Picture

   Call the function for every component of the pixels. For example for RGB pixels mixWith is declared like this:

   mixWith f (PixelRGB8 ra ga ba) (PixelRGB8 rb gb bb) =
   PixelRGB8 (f 0 ra rb) (f 1 ga gb) (f 2 ba bb)
   

9. mixWithAlpha :: Pixel a => (Int -> PixelBaseComponent a -> PixelBaseComponent a -> PixelBaseComponent a) -> (PixelBaseComponent a -> PixelBaseComponent a -> PixelBaseComponent a) -> a -> a -> a

   JuicyPixels	Codec.Picture

   Extension of the mixWith which separate the treatment of the color components of the alpha value (transparency component). For pixel without alpha components, it is equivalent to mixWith.

   mixWithAlpha f fa (PixelRGBA8 ra ga ba aa) (PixelRGB8 rb gb bb ab) =
   PixelRGBA8 (f 0 ra rb) (f 1 ga gb) (f 2 ba bb) (fa aa ab)
   

10. mutablePixelBaseIndex :: Pixel a => MutableImage s a -> Int -> Int -> Int

    JuicyPixels	Codec.Picture

    Calculate theindex for the begining of the pixel at position x y

Page 103 of many | Previous | Next