The watershed algorithm is a classic algorithm used for segmentation and is especially useful when extracting touching or overlapping objects in images, such as the coins in the figure above. Using traditional image processing methods such as thresholding and contour…

You know what makes for a (not so) fun weekend? Reconfiguring and reinstalling OSX on your MacBook Pro. Apparently, the 13in MacBook Pro that I use when I’m traveling decided to shit the bed. No worries though, I use Carbon…

My Raspberry Pi 2 just arrived in the mail yesterday, and man is this berry sweet. This tiny little PC packs a real punch with a 900mhz quadcore processor and 1gb of RAM. To give some perspective, the Raspberry Pi…

So we know that matplotlib is awesome for generating graphs and figures. But what if we wanted to display a simple RGB image? Can we do that with matplotlib? Of course! This blog post will show you how to display…

So what type of shape descriptors does OpenCV provide? The most notable are Hu Moments which are can be used to describe, characterize, and quantify the shape of an object in an image. Hu Moments are normally extracted from the…

Tragic. Heartbreaking. Unbearable. These are the three words that I would use to describe my past week. About a week ago, a close childhood friend of mine passed away in a tragic car accident. I went to elementary school and…

Last updated on July 4, 2021. 4:18am. Alarm blaring. Still dark outside. The bed is warm. And the floor will feel so cold on my bare feet. But I got out of bed. I braved the morning, and I took…

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,…

A few months ago, I was teaching an online seminar on the basics of computer vision. And do you know what the most common question I got asked was? How do I use OpenCV to load an image and display…