title: Detect only red pixels in Java
body: <p>I need to detect all the red pixels in an image using Java. What 's the best way to do this?</p>
  
  <p>Only supposing a pixel is red when the Red RGB-value is > 200 isn't good enough (see <a href="http://www.workwithcolor.com/red-color-hue-range-01.htm" rel="nofollow">this table</a>).</p>
  
  <p>So is there a better way to do this? Or is there some red-color-rgb algorithm?</p>