Did you know that OpenCV can detect cat faces in images…right out-of-the-box with no extras? I didn’t either. I had to check it out for myself…and do a little investigative work to see how this cat detector seemed to sneak…

Well. I’ll just come right out and say it. Today is my 27th birthday. As a kid I was always super excited about my birthday. It was another year closer to being able to drive a car. Go to R…

So in last week’s blog post we discovered how to construct an image pyramid. And in today’s article, we are going to extend that example and introduce the concept of a sliding window. Sliding windows play an integral role in…

It’s too damn cold up in Connecticut — so cold that I had to throw in the towel and escape for a bit. Last week I took a weekend trip down to Orlando, FL just to escape. And while the…

Update – January 27, 2015: Based on the feedback from commenters, I have updated the source code in the download to include the original MNIST dataset! No external downloads required! Update – March 2015, 2015: The nolearn package has now…

In my last post, I mentioned that tiny, one pixel shifts in images can kill the performance your Restricted Boltzmann Machine + Classifier pipeline when utilizing raw pixels as feature vectors. Today I am going to continue that discussion. And…

Can you tell the difference between the two images above? Probably not. The one on the right has been shifted one pixel down. And while it still looks like the same image to us, to a Restricted Boltzmann Machine, this…