title: Wiener filtering on RGB image
body: <p>I am trying to implement the wiener filter on the CIFAR10 dataset which consists of RGB images.</p>
  <p>But this filter can only be used for Gray-scaled images.</p>
  <p>I tried to implement it on each R/G/B channel and then combine them, but the resulting RGB image was not even close to the initial image.</p>
  <p>Any ideas?</p>
  <p>(I am using scipy.signal.signaltools.wiener)</p>
  <p>Thanks in advance</p>