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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…
Read More of 4 Point OpenCV getPerspective Transform Example
So last night I went out for a few drinks with my colleague, James, a fellow computer vision researcher who I have known for years. You see, James likes to party. He’s a “go hard” type of guy. He wanted…
Read More of Skin Detection: A Step-by-Step Example using Python and OpenCV
Last updated on July 9, 2021. So, here I am. Riding the Amtrak 158 train, coming home after a long business trip. It’s hot. The AC is barely working. A baby is screaming right next to me while the accompanying…
Read More of OpenCV and Python Color Detection
Have you ever had a horrible case of eyelid twitching? One where your eyelid just won’t stop spazzing out, no matter what you do? That’s currently what’s going on with me — and it’s been going on for over two…
Read More of Segmentation: A SLIC Superpixel Tutorial using Python
A few days ago, I got an email from a PyImageSearch reader asking about circle detection. See below for the gist: Hey Adrian, Love your blog. I saw your post on detecting rectangles/squares in images, but I was wondering, how…
Read More of Detecting Circles in Images using OpenCV and Hough Circles
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…
Read More of How-To: 3 Ways to Compare Histograms using OpenCV and Python
Ever see A Scanner Darkly? The movie was shot digitally, but then an animated feel was given to it in the post-processing steps — but it was a painstaking process. For each frame in the movie, animators traced over the…
Read More of Color Quantization with OpenCV using K-Means Clustering
About a month ago, I spent a morning down at the beach, walking along the sand, letting the crisp, cold water lap against my feet. It was tranquil, relaxing. I then took out my iPhone and snapped a few photos…
Read More of Super fast color transfer between images
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,…
Read More of Announcing “Case Studies: Solving real world problems with computer vision”
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