Doesn't scikit-image has a 2d convolution function like cv2.filter2D in OpenCV which enables convolution of an image (or any numpy array) with custom kernel ?<br><br>On Tuesday, 9 April 2013 22:10:26 UTC+5:30, abid rahman  wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Hi,<br><br>I would like to add a feature on histogram backprojection as proposed by <b>Swain &amp; Michael J.</b> in their paper <b>"Indexing via color histograms"</b>.. Earlier, I had written a simple article on that ( it was focussed for OpenCV) in my blog : <a href="http://opencvpython.blogspot.in/2013/03/histograms-4-back-projection.html." target="_blank">http://opencvpython.blogspot.<wbr>in/2013/03/histograms-4-back-<wbr>projection.html.</a><br><br>I can have some simple modification to it to integrate it into scikit-image. So I would like to know the opinion of senior developers on this proposal. <br><br>Regards<br>Abid K.<br></blockquote>