OpenCV

Opencv Error: Unspecified Error (Could Not Find A Writer For The Specified Extension) In Imwrite

## error ```plaintext OpenCV(3.4.1) Error: Unspecified error (could not find a writer for the s…

TwoPunch created at Oct. 27, 2021, 12:55 p.m.

Possible Solutions To Fatal Error Encountered When Installing Opencv2.4.13 On Ubuntu18.04

**Possible solutions to fatal error encountered when installing opencv2.4.13 on ubuntu18.04** Du…

TwoPunch created at Oct. 5, 2021, 4:07 p.m.

Debug Error: Abort() Has Been Called

## problem1 When debugging the program today, there was no problem. After debugging several time…

doporos created at Aug. 27, 2021, 7:50 a.m.

Cv2.Imshow Error: Window.Cpp:1274: Error: (-2:Unspecified Error) The Function Is Not Implemented.

## error message ```plaintext Traceback (most recent call last): File “/home/data/PJS/test_bed…

doporos created at Aug. 10, 2021, 5:23 p.m.

Opencv(4.5.3) Error: (-215:Assertion Failed) !_Src.Empty() In Function ‘Cv::Cvtcolor‘

This bug is caused by the data path problem. Pay attention to two problems with the path: 1. Th…

doporos created at Aug. 8, 2021, 2:33 p.m.

Error: (-215:Assertion Failed) Npoints >= 0 && (Depth == Cv_32f || Depth == Cv_32s) In Funct

## code ```plaintext x, y, w, h = cv2.boundingRect(np.array(cnt)) ``` When the above code i…

doporos created at Aug. 6, 2021, 10:13 p.m.

Python, Hough Circle Transformation In Opencv-Cv2.Houghcircles()

This blog will talk about how to use the Hough Circle Transform to find circles in an image. OpenCV…

doporos created at Aug. 6, 2021, 9:53 p.m.

Perform Yolov3 Object Detection Using Opencv In Python

Use the yolov3 model to perform YOLOv3 object detection through the opencv camera. ## Import the…

doporos created at Aug. 3, 2021, 2:10 p.m.

Python And Opencv Video Real-Time Face Coverage

## problem The video real-time face detection function has been made, but the face coverage is b…

robot18 created at July 31, 2021, 1:51 p.m.

Error: (-2:Unspecified Error) File Can't Be Opened For Writing! In Function 'Cv::Face::Facerecognizer::Write'

## problem code ```plaintext recognizer = cv2.face.LBPHFaceRecognizer_create() recognizer.t…

robot18 created at July 31, 2021, 1:29 p.m.

Projpoints2 Is Not A Numpy Array, Neither A Scalar

## problem ```plaintext pointCloudX, pointCloudY, pointCloudZ, reprojError = cv2.triangulatePoi…

robot18 created at July 31, 2021, 1:12 p.m.

Error: (-215:Assertion Failed) Func != 0 In Function

## problem Problems encountered when using the resize function in opencv. my code: ```plai…

robot18 created at July 31, 2021, 1:08 p.m.

The Problem Of Opencv-Python Dual Target Fixed Distance Measurement

## question Regarding the problem of opencv dual-target determination, can we calibrate the two …

robot18 created at July 31, 2021, 1:03 p.m.

Opencv Error: Bad Argument (Unknown Interpolation Method) In Resize Problem Solving

## environment * The operating environment of this article * System: Ubuntu 18.04 * ROS …

robot18 created at July 31, 2021, 11:14 a.m.

Insufficient Memory (Out Of Memory) In Function Cvalloc ...

## question What does this mean when I am playing AE?  This problem has never occurred before…

robot18 created at July 31, 2021, 10:59 a.m.

How To Convert Coordinate System With Python-Opencv

The example below uses OpenCV to convert  coordinate system in Python. ## Cartesian to polar coo…

robot18 created at July 2, 2021, 10:44 a.m.

Python+Opencv+Hog+Svm+Pedestrian Detection

This article summarizes the HOG+SVM related to pedestrian detection. Of course, there are also vehi…

robot18 created at June 29, 2021, 5:36 p.m.

Import Cv2 Error:Importerror: Numpy.Core.Multiarray Failed To Import

System environment: Windows10 Python environment: Anaconda + Python3.6.3 OpenCV: 3.4.3 Aft…

robot18 created at June 26, 2021, 2:41 p.m.