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dg1an3/histo.cs

Created February 24, 2018 23:35
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C# Image Histogram
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histo.cs
// for a 2D array of pixels with some pixel type
var pixels = new TPixel[100,100];
// turn into a sequence
var pixelSequence = pixels.Cast<TPixelType>();
// group the sequence and turn to a dictionary, with pixel values as key and bin count as value
var histo = pixelSequence.GroupBy(px => px).ToDictionary(grp => grp.Key, grp => grp.Count());
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dg1an3 commented Feb 24, 2018

quick and dirty histogram (not very efficient) from a 2D pixel array

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