[Haskell-cafe] Pixel by pixel image processing

Alexey Vagarenko vagarenko at gmail.com
Wed Jun 3 07:29:11 UTC 2015


There is also https://hackage.haskell.org/package/JuicyPixels

среда, 3 июня 2015 г., 13:19:23 UTC+6 пользователь Geraldus написал:
> Hi cafe!
> I want to do some trivial masking manipulation on PNG images: take a 
> picture, crop it to square shape and then make a circular mask, i.e. take 
> all pixels that lies outside circle with radius equal to half of image 
> width and placed at image center and replace that pixels with zero opacity 
> once (hope this description is clear enough).
> I've found two packages for image processing so far: `friday` [1] and 
> `unm-hip` [2], but can't figure out which of them suits my needs, maybe 
> there are some other packages I miss?
> [1] https://hackage.haskell.org/package/friday
> [2] https://hackage.haskell.org/package/unm-hip
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