You can master Computer Vision, Deep Learning, and OpenCV - PyImageSearch
Have you ever had to loop over an image pixel-by-pixel using Python and OpenCV? If so, you know that it’s a painfully slow operation even though images are internally represented by NumPy arrays. So why is this? Why are individual…
Read More of Fast, optimized ‘for’ pixel loops with OpenCV and Python
Today’s blog post is Part II in our two part series on OCR’ing bank check account and routing numbers using OpenCV, Python, and computer vision techniques. Last week we learned how to extract MICR E-13B digits and symbols from input…
Read More of Bank check OCR with OpenCV and Python (Part II)
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.…
Read More of Bank check OCR with OpenCV and Python (Part I)
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…
Read More of Credit card OCR with OpenCV and Python
Last updated on Feb 13, 2024. In last week’s blog post we learned how to install the Tesseract binary for Optical Character Recognition (OCR). We then applied the Tesseract program to test and evaluate the performance of the OCR engine…
Read More of Using Tesseract OCR with Python
As you undoubtedly know, configuring and installing OpenCV on your macOS machine can be a bit of a pain. To help you and other PyImageSearch readers get OpenCV installed faster (and with less headaches), I put together a tutorial on…
Read More of Resolving macOS, OpenCV, and Homebrew install errors
Each week I receive and respond to at least 2-3 emails and 3-4 blog post comments regarding NoneType errors in OpenCV and Python. For beginners, these errors can be hard to diagnose — by definition they aren’t very informative. Since…
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Over the past few weeks I have demonstrated how to compile OpenCV 3 on macOS with Python (2.7, 3.5) bindings from source. Compiling OpenCV via source gives you complete and total control over which modules you want to build, how…
Read More of Install OpenCV 3 on macOS with Homebrew (the easy way)
Updated: September 16th, 2019 Ever since I wrote the first PyImageSearch tutorial on installing OpenCV + Python on the Raspberry Pi B+ back in February 2015 it has been my dream to offer a downloadable, pre-configured Raspbian .img file with OpenCV…
Read More of Raspbian + OpenCV pre-configured and pre-installed.
