title: replace color in an image in c#
body: <p>What is the way in C# to replace a color for some parts of an image without affecting its texture?</p>
  
  <p>You can see good example of the result <a href="http://www.leadtools.com/sdk/image-processing/functions/function.asp?id=158" rel="noreferrer">here</a><br>
  Thanks</p>