Tag Archives | opencv

Montages with OpenCV

Today’s blog post is inspired by an email I received from PyImageSearch reader, Brian. Brian asks: Hi Adrian, I’m really enjoying the PyImageSearch blog. I found your site a few days ago and I’ve been hooked on your tutorials ever since. I followed your tutorial on building an image search engine, but instead of displaying […]

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Text skew correction with OpenCV and Python

Today’s tutorial is a Python implementation of my favorite blog post by Félix Abecassis on the process of text skew correction (i.e., “deskewing text”) using OpenCV and image processing functions. Given an image containing a rotated block of text at an unknown angle, we need to correct the text skew by: Detecting the block of text in the […]

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OpenCV: Resolving NoneType 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 this question is getting asked so often I decided to dedicate an entire blog post […]

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Raspbian + OpenCV pre-configured and pre-installed.

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 pre-installed. Today this dream has become a reality. I am pleased to announce that both the Quickstart Bundle and Hardcopy […]

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