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Detecting shapes, lines and circles in images using Hough Transform technique with OpenCV in Python. Hough transform is a popular feature extraction technique to detect any shape within an image.
How can I make a program to count the fingers of the hand in real time using a webcam in OpenCV + Python? Abdou Rockikz4 years ago Hello, We will look forward to write a tutorial like this in the near future, I will tell you about it when it's released :) ...
In this article, we show how to display an OpenCV image in Python with the matplotlib module. OpenCV is a powerful, versatile module that allows us to do many computer vision tasks, including working with images. Opening an image in OpenCV is as simple as using the cv2.imread() ...
In this article, we show how to detect corners in an image in Python using the OpenCV module. OpenCV has algorithms available that can allow us to detect corners in an image. There are 2 main algorithms used in OpenCV for corner detection: the Harris corner detection method and the goodFeat...
Figure 1– Output of the program, showing the blended image and the original images. A more complex example Now that we have covered the basics, we will check a slightly more complex example where we will add a slider to the OpenCV window, to be able to vary the weight of each image ...
In this tutorial we will learn how to draw text on an image, using Python and OpenCV. The code we will analyze was tested on Windows 8.1, with version 4.1.2 of OpenCV. The Python version used was 3.7.2. How to draw text on the image We will start by importing the cv2 module, whi...
Unlike c++-opencv, Python-OpenCV doesn't have a function like convertTo. But we can modify image data types using Numpy. For example, we have an image of image depth cv2.CV_64FC1 and we want to change the depth to cv2.CV_8UC1 ...
Learn how to use the cross-platform Dynamsoft Python Capture Vision SDK to detect documents on Windows, Linux, and macOS. This tutorial focuses on leveraging the SDK’s powerful document detection capabilities for Python developers.
# passing the algorithm to OpenCV haar_cascade = cv2.CascadeClassifier(alg) Capture the video from the camera. Pass 0 to theVideoCapture()function to use your primary camera. If you have attached an external camera you can use successive numbers 1, 2, and so on to use it instead. ...