title: Green screen chroma-key using ImageMagick
body: <p>I had been searching for good algorithm for green screen chroma key using ImageMagick, but no satisfactory answer so far.</p>
  
  <p>I would like to explore a simple method of using range selection along the HSV/HSB color space (similar to -fuzz) to select the green color I want and make them transparent. The -fuzz seems to apply only in RGB space, which is not desired.</p>
  
  <p>Can anyone teach me how to select color with seperate range for H, S, V component, for example, 115-125 degree Hue, 40%-60% Saturation and 30-80% Value.</p>
  
  <p>If there is other better chroma-key algorithm, your advice is highly appreciated too.</p>
  
  <p>Thanks in advance.</p>