OpenCV

computer vision -OpenCV（ three ）

one , Image gradient II , Image pyramid III , Image outline
2022-04-26 14:46 views 27

C++ python Find the calibration dot

Original drawing 6*96*66*5 Why can't we detect any shape ??? as 5*X It can't be detected. At least 6*5 and 6 Not change , Otherwise, it will not ...
2022-04-06 17:33 views 14

opencv Mat understand

Function one #include <opencv2/opencv.hpp>cv::Mat func(cv::Mat input) { input.setTo(0); //input = cv::Mat::ones(4, 4, CV_32F); retu...
2022-03-21 09:51 views 8

opencv camera calibration

After correcting the original picture, I created a new one jz Put the pictures that need to be taken by the camera in the folder , as follows ： co...
2022-02-03 19:08 views 27

opencv 3 Corner detection

import cv2import numpy as npfrom matplotlib import pyplot as pltdef cv_show(neme, img): # cv2.namedWindow(neme, cv2.WINDOW_NORMAL) cv2.imshow...
2022-01-26 18:10 views 38

computer vision OpenCV【 two ： Grayscale , Gaussian blur , edge detection 】

one , Color image to grayscale Opencv Provides a method , Color image can be changed into gray image . Function name ：cvtColor(src,dest,way);src D...
2021-04-26 23:30 views 134

Fast positioning OpenCV The location of a function in the source code

Problem description ： Watching OpenCV Document description , In some cases, I don't understand it very well , Because some of the descriptions in ...
2020-07-28 20:06 views 28

python+opencv+dlib Realize face detection and expression recognition

python+opencv+dlib Face detection and expression recognition ,dlib Brief introduction ：Dlib Contains a wide range of machine learning algorithms . ...
2020-03-15 21:05 views 42

OpenCV - Haar+Adaboost Face recognition （Python realization ）

features ： A result of a pixel operation .Harr features haar The characteristics are mainly divided into the following categories ： features = W...
2019-09-27 08:57 views 54

cv2.error: OpenCV(4.1.0) C:\projects\opencv-python\opencv\modules\imgproc\src\segmentation.cpp:161:

Problem description in the use of watershed segmentation , This common error was found kernel = np.ones((3, 3), np.uint8)sure_bg = cv.dilate(water...
2019-08-23 18:03 views 1350
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