Search Results for: Block Chain

Today’s blog post is inspired by Li Wei, a PyImageSearch reader who emailed me last week and asked: Hi Adrian, Thank you for the PyImageSearch blog. I read it each week and look forward to your new posts every Monday.…

Today’s blog post is a continuation of our recent series on Optical Character Recognition (OCR) and computer vision. In a previous blog post, we learned how to install the Tesseract binary and use it for OCR. We then learned how…

Last updated on July 7, 2021. In a previous PyImageSearch blog post, I detailed how to compare two images with Python using the Structural Similarity Index (SSIM). Using this method, we were able to easily determine if two images were…

Today’s tutorial is inspired by a post I saw a few weeks back on /r/computervision asking how to recognize digits in an image containing a thermostat identical to the one at the top of this post. As Reddit users were…

Let me tell you an embarrassing story of how I wasted three weeks of research time during graduate school six years ago. It was the end of my second semester of coursework. I had taken all of my exams early…

Today’s blog post is a followup to a tutorial I did a couple of years ago on finding the brightest spot in an image. My previous tutorial assumed there was only one bright spot in the image that you wanted…

Over the past few months I’ve gotten quite the number of requests landing in my inbox to build a bubble sheet/Scantron-like test reader using computer vision and image processing techniques. A dataset of filled-in bubble sheets is essential for this…

Here’s a common question I get asked on the PyImageSearch blog: How do I make a Python + OpenCV script start as soon as my system boots up? There are many ways to accomplish. By my favorite is to use…

Last week we learned a bit about Python virtual environments and how to access the RPi.GPIO and GPIO Zero libraries along with OpenCV. Today we are going to build on that knowledge and create an “alarm” that triggers both an…