OpenCV Image

How-tos OpenCV Convolution This tutorial explores OpenCV convolution using the filter2D() function in Python. Learn how to find the convolution of two matrices or images, apply various filters, and enhance … ↗ How-tos OpenCV Histogram Equalization This article teaches how to perform histogram equalization on colored images using OpenCV's equalizeHist() function. Learn the difference between standard histogram equalization … ↗ How-tos How to OpenCV Save Image Learn how to save images using OpenCV's imwrite() function in Python. This comprehensive guide covers various methods, including saving in different formats and adjusting image … ↗ How-tos How to Recognize Face in Python OpenCV This tutorial will discuss recognizing faces present in an image using the face recognition library in OpenCV. ↗ How-tos How to Detect Rectangle in Python OpenCV Detect rectangles in images using OpenCV in Python. This article explores using findContours(), contourArea(), and HoughLinesP() functions for effective shape detection in computer … ↗ How-tos Matrix Multiplication in OpenCV This tutorial will discuss multiplying two matrices using the asterisk operator, the multiply() function, and the gemm() function of OpenCV. ↗ How-tos How to Rotate Image in OpenCV This article teaches you to rotate an image using the rotate() and warpAffine() function of OpenCV. ↗ How-tos How to Put Text on Images in OpenCV This article teaches you to put text on images using the putText() function of OpenCV. ↗ How-tos How to Detect Colors in Python OpenCV This article teaches to detect colors in images using the inRange() function of OpenCV. ↗ How-tos How to Detect Blob or Circle in OpenCV This article teaches to detect blobs or circles present in an image using the SimpleBlobDetector class of OpenCV. ↗ How-tos How to OpenCV Bounding Box This article teaches how you can find bounding boxes around shapes present in an image using the boundingRect() function of OpenCV. ↗ How-tos How to Detect Shape in OpenCV This article teaches how you can detect shapes present in an image using the findContours() and approxPolyDP() functions of OpenCV. ↗ How-tos How to Create Image in Python OpenCV This article teaches the ways of creating an image in OpenCV. ↗ How-tos How to Compare Images in OpenCV This article teaches how you can compare images using the norm() and compareHist() functions of OpenCV. ↗ How-tos How to Detect Line in Python OpenCV This article discusses detecting lines in an image using the HoughLines() and HoughLinesP() function of OpenCV in Python. ↗ How-tos How to Combine Images in OpenCV This tutorial will discuss combining two images using the concatenate() function of NumPy in Python. ↗ How-tos How to Calculate Average Color of Image in OpenCV This tutorial will discuss finding the average color of an image using the average() function of NumPy in Python. ↗ How-tos How to Use Erode in OpenCV This tutorial will discuss finding the erosion of an image using the erode() function of OpenCV. ↗ How-tos How to Detect Edge in Python OpenCV This tutorial will discuss detecting edges in an image using the canny or Sobel edge detector in OpenCV. ↗ How-tos How to Detect Object in Python OpenCV This tutorial will discuss detecting objects present in an image or video stream using the cascade classifier and YOLO in OpenCV. ↗ How-tos How to Subtract Background in OpenCV This tutorial will discuss removing background from an image using cvzone, MOG2, and KNN in OpenCV. ↗ How-tos OpenCV Remap This article discusses transforming an image according to a map using the remap() function of OpenCV in Python. ↗ How-tos OpenCV Perspective Transform This article discusses finding the perspective transform of an image using the getPerspectiveTransform() and warpPerspective() function of OpenCV in Python. ↗ How-tos OpenCV Image Point This article discusses point notation of images in OpenCV. ↗