title: Setting color temperature for a given image (like in Photoshop)
body: <p>I've been assigned to set color temperature to a value between 1000 and 10.000 just like in Photoshop. So far I only have been able to find a table that shows the values <a href="http://www.cambridgeincolour.com/tutorials/white-balance.htm" rel="nofollow">here</a> 
  I tried to find the same function in Gimp (since it is open source and I would learn by reading the code) but there is no direct equivalent of it. I have to choose color levels and bend some curves. I've been told that customer want to set the values just like in Photoshop. 
  Can anybody point in the right direction to create the scale?</p>
  
  <p>Edit: Link corrected.</p>