scikits-image/scikits-image — pull request #228 by thewtex (2012-07-20 22:57:19+00:00)
Title: BUG: Ignore colorconv RuntimeWarning:invalid value encountered in true_d...

...ivide.

Sometimes zero divided by zero can occur in this code. Saturation was already
explicitly set to zero when 'delta' is zero. According to Wikipedia, hue is
undefined when 'delta' here is zero, so explicitly set to zero.