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Contours Posts

Vehicle Detection with OpenCV using Contours + Background Subtraction

Vehicle Detection with OpenCV using Contours + Background Subtraction

In this video we will explore how you can perform tasks like vehicle detection using a simple but yet an effective approach of background-foreground subtraction. You will be learning about using background-foreground subtraction along with contour detection in OpenCV and how you tune different parameters to achieve better results.

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Contour Detection 101: Contour Analysis (Pt:3)

Contour Detection 101: Contour Analysis (Pt:3)

In the third part of this series, we will be learning about analyzing contours. This is really important because by doing contour analysis you can actually recognize the object being detected and differentiate one contour from another. We will also explore how you can identify different properties of contours to retrieve useful information. Once you start analyzing the contours, you can do all sorts of cool things with them. The application below that I made, uses contour analysis to detect the shapes being drawn!

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Contour Detection 101: Contour Manipulation (Pt:2)

Contour Detection 101: Contour Manipulation (Pt:2)

In part two of the series, the contour manipulation techniques we are going to learn will enable us to perform some important tasks such as extracting the largest contour in an image, sorting contours in terms of size, extracting bounding box regions of a targeted contour, etc. These techniques also form the building blocks for building robust classical vision applications.

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Contour Detection 101 : The Basics (Pt:1)

Contour Detection 101 : The Basics (Pt:1)

This simpler approach relies on a popular Computer Vision technique called Contour Detection. A handy technique that can save the day when dealing with vision problems such as the one above. Although not as generalizable as Deep Neural Networks, contour detection can prove robust under controlled circumstances, requiring minimum time investment and effort to build vision applications.

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Contour Detection 101 : The Basics (Pt:1)

(Video) Contour Detection 101: The Basics (Pt:1)

This video is a part of our upcoming Building Vision Applications with Contours and OpenCV course. In this video, I’ve covered all the basics of contours you need to know. You will learn how to detect and visualize contours, the various image pre-processing techniques required before detecting contours, and a lot more.

The course will be released in a couple of weeks on our site and will contain quizzes, assignments, and walkthroughs of high-level Jupyter notebooks which will teach you a variety of concepts.

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