You can master Computer Vision, Deep Learning, and OpenCV - PyImageSearch
OpenCV TutorialsLearn how to successfully use, operate, and apply the OpenCV library for Computer Vision and Deep Learning using these free OpenCV tutorials and guides.
Last updated on July 7, 2021. A couple weeks ago we learned how to classify images using deep learning and OpenCV 3.3’s deep neural network (dnn ) module. While this original blog post demonstrated how we can categorize an image…
Read More of Object detection with deep learning and OpenCV
It’s been over two years since the release of Raspbian Jessie. As of August 17th, 2017, the Raspberry Pi foundation has officially released the successor to Raspbian Jessie — Raspbian Stretch. Just as I have done in previous blog posts,…
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Two weeks ago OpenCV 3.3 was officially released, bringing with it a highly improved deep learning (dnn ) module. This module now supports a number of deep learning frameworks, including Caffe, TensorFlow, and Torch/PyTorch. Furthermore, this API for using pre-trained…
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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…
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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…
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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…
Read More of Recognizing digits with OpenCV and Python
Have you ever worked with a video file via OpenCV’s cv2.VideoCapture function and found that reading frames just felt slow and sluggish? I’ve been there — and I know exactly how it feels. Your entire video processing pipeline crawls along,…
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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…
Read More of Rotate images (correctly) with OpenCV and Python
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…
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