【CV cornerstone】Soft-NMS
import numpy as np # Define a nms function def soft_nms(dets, thresh=0.3, sigma=0.5): # Only those whose score is greater than thresh can survive. Actual adjustment parameter ''' input: dets : dets is an...
Category: computer vision
[Computer Vision] Image Enhancement—-Histogram Equalization
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Visual Target Tracking – Two-dimensional Image Template Matching Method (2)
The last [two-dimensional image template matching method (1)]](/c20081052/article/details/81097400) mainly uses the template matching method that comes with [opencv] to calculate the matching degree of the target. This article defines the matching degree calculation method...
Python calls Hikvision network camera – python reads camera rtsp stream display screen
I collected some information on the Internet about how to realize the connection and screen playback of Hikvision cameras in python. The most direct way is to achieve it through rtsp streaming. Hikvision’s rtsp...
OpenCV Vehicle detection combat
Foreword : For the general outline, please see “Computer Vision Learning Road” 1. Remove the background createBackgroundSubtractorMOG2(…) history = 200 # Represents how many video frames are pre-stored, and the background is judged according...
Median filter (matlab self-programming implementation)
Personal profile: 📦 Personal homepage: [Zhao Si driver] 🏆 Learning direction: JAVA back-end development 📣 The best time to plant a tree was ten years ago, followed by now! ⏰ Previous article: SpringBoot project...
Face recognition classic algorithm implementation (3) – LBP algorithm
The third algorithm is called the LBP algorithm. The idea of this algorithm is very different from that of [PCA] and Fisher. It considers local feature operators, not global considerations. This algorithm defines a...
Cascade classifier training process (steps)
[This article is translated from Baidu] translation from : https://docs.opencv.org/master/dc/d88/tutorial_traincascade.html Due to my limited English proficiency, please refer to the OpenCV official website for any inconsistencies in the translation. Please understand. The text details...
The solution for plt.show() in pycharm does not display images
Restart Pycharm Add the following code import matplotlib import matplotlib.pyplot as plt matplotlib.use( 'TKAgg' ) #Add this line of code, agg is a terminal without a graphical display interface, commonly used terminals with graphical...
Simple perspective transformation with OpenCV
scene description Given any image, capture any target area from it, and display it in the specified size. For example, we want to get the old K in the image below and display it...