Face Detection is a technology to identify faces from the image. We use Python’s OpenCV for this. We can also use Face Detection in the case of Animals too. If one can take a close look at the OpenCV repository, the haar cascades directory to be specific (where the OpenCV stores all its pre-trained haar classifiers to detect various objects, body parts, etc.), there are two files:...

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Edge detection refers to a set of mathematical techniques for recognizing points in a digital image where the image brightness abruptly changes or, more formally, where there are discontinuities. The sharp fluctuations in image brightness are usually grouped into a collection of curved line segments called edges....

OpenCV is the huge open-source library for computer vision, machine learning, and image processing and now it plays a major role in real-time operation which is very important in today’s systems. By using it, one can process images and videos to identify objects, faces, or even the handwriting of a human. When it integrated with various libraries, such as Numpy, Python is capable of processing the OpenCV array structure for analysis. Note: For more information, refer to OpenCV Python Tutorial...

OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.ellipse() method is used to draw a ellipse on any image....

As we know OpenCV is a widely used library for image processing. It provides a wide sense of image processing. Let’s see how to create video using multiple images using OpenCV....

OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.putText() method is used to draw a text string on any image....

In this article, we will discuss how to implement photoshop High Pass Filter (HPF) image in Python OpenCV....

When we show the image using the imshow() function output window will open at the center or default position of a computer screen. Even if there are multiple image windows all windows will be displayed at the same position and we have to move windows manually. If we want to show image windows at a specific position moveWindow() function of OpenCV will do it....

OCR which stands for Optical character recognition is a computer vision technique used to recognize characters such as digits, alphabets, signs, etc. These characters are common in day-to-day life and we can perform character recognition based on our requirements. We will implement optical character recognition of the English alphabets using OpenCV. here we will use the KNN algorithm which is used for classification....

To concatenate images vertically and horizontally with Python, cv2 library comes with two functions as:...

This article aims to quickly build a Python face recognition program to easily train multiple images per person and get started with recognizing known faces in an image....