Archive | Tutorials

How-To: 3 Ways to Compare Histograms using OpenCV and Python

So you’ve extracted color histograms from a set of images… But how are you going to compare them for similarity? You’ll need a distance function to handle that. But which one? How you choose? And how do you compare histograms using Python and OpenCV? Don’t worry, I’ve got you covered. In this blog post I’ll […]

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Announcing “Case Studies: Solving real world problems with computer vision”

I have some big news to announce today… Besides writing a ton of blog posts about computer vision, image processing, and image search engines, I’ve been behind the scenes, working on a second book. And you may be thinking, hey, didn’t you just finish up Practical Python and OpenCV? Yep. I did. Now, don’t get […]

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Building a Pokedex in Python: Comparing Shape Descriptors with OpenCV (Step 6 of 6)

Here we are, the final step of building a real-life Pokedex in Python and OpenCV. This is where it all comes together. We’ll glue all our pieces together and put together an image search engine based on shape features. We explored what it takes to build a Pokedex using computer vision. Then we scraped the web […]

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