[Haskell-cafe] Pixel by pixel image processing

Bram Neijt bneijt at gmail.com
Wed Jun 3 08:24:55 UTC 2015

I did some combine images into a single large image code using GTK,
Cairo and Pixbuf:

I would consider Cairo[1] another.


[1] http://cairographics.org/

On Wed, Jun 3, 2015 at 9:29 AM, Alexey Vagarenko <vagarenko at gmail.com> wrote:
> Hello,
> 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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