PyQt5 implementation - embed Matplotlib image into the score area (display scroll bar)
preface As mentioned in the title, it took another two days to implement the function. Originally, this afternoon, I was a little frustrated and planned to give up the idea of embedding it into the score area. But in the end, I felt a little nervous and carefully sorted out the logic, and finaUTF-8...
Posted by garmann on Sat, 15 May 2021 05:25:38 +0930
Python opencv uses multithreading to read cameras in high resolution (depth analysis)
1. Configuration environment Using environment: Python 3.8 Platform: Windows10, Ubuntu 20.04 IDE: PyCharm 2. Task requirements The screen of the two cameras can be switched and displayed through the interface button As shown in the figure below, click the front camera to display the picture ofUTF-8...
Posted by evilmonkey on Tue, 18 May 2021 05:05:34 +0930
Z-axis tilt correction
Image skew Generally, there are two cases of image skew Plane tilt: the camera is parallel to the object, and the image can be corrected by rotation. Z-axis tilt: the camera is not parallel to the object, and the image must be perspective transformed first, and then rotated to complete the corrUTF-8...
Posted by judgenules on Fri, 04 Jun 2021 08:35:31 +0930
Chapter one_ Introduction to image programming
1.1 introduction to opencv Official document address: https://docs.opencv.org/master/index.html Including C++,python and other language versions of the document opencv+visual studio environment configuration: https://docs.opencv.org/master/dd/d6e/tutorial_windows_visual_studio_opencv.html (offiUTF-8...
Posted by hollyspringer on Sat, 05 Jun 2021 08:30:25 +0930
OpenCV target tracking
Target tracking is an important problem in the field of computer vision, which is widely used in sports broadcasting, security monitoring, UAV, unmanned vehicle, robot and other fields. The case comes from Mr. Fu. OpenCV includes eight separate object tracking implementations: 1. BOOSTING TrackUTF-8...
Posted by WhiteHawk on Thu, 01 Jul 2021 07:30:43 +0930
Learn opencv Python together -- image thresholding and filtering in image processing
Contents of series articles preface This tutorial will learn simple threshold, adaptive threshold and Otsu threshold: cv.threshold and cv.adaptiveThreshold And using low-pass filter to blur image, 2D convolution and so on 1, Image threshold function cv.threshold and cv.adaptiveThreshold 1. SimpUTF-8...
Posted by jamkelvl on Sat, 03 Jul 2021 02:59:57 +0930
The latest version of CentOS 7 in 2021 is equipped with Caffe deep learning environment
preface This article was written on July 4, 2021. If there is a mistake in the configuration according to the method in this paper, please pay attention to whether it is too far away from the writing time. Please make sure your computer graphics card is NVIDIA. This paper is not applicable to AUTF-8...
Posted by dansk on Mon, 05 Jul 2021 05:24:55 +0930
Yolov5 Target Detection--From Training to NCNN Inference
1. Environmental Installation 1. Create an environment conda create --name yolov5 python=3.7 activate yolov5 Exit Environment conda deactivate Delete Environment conda env remove -n yolov5 2. Installation Dependency cd yolov5 pip install -r requirements.txt perhaps conda install pytorch torchviUTF-8...
Posted by GOKU on Thu, 08 Jul 2021 02:24:59 +0930
win10+vs2017+denseflow compilation
Because we need to train our own action recognition model, we need to make relevant data sets, which is to make optical flow data. We try to use traditional opencv to do it, and find that the speed is too slow. Finally found denseflow Library, so record the installation process under win10 hereUTF-8...
Posted by reloj_alfred on Fri, 09 Jul 2021 07:49:58 +0930
Access pixels in an image
Color space reduction Method: divide the existing color space value by an input value to get a smaller number of colors, that is "subtraction". For example, colors 0 to 9 can be taken as new values, colors 0 to 19 can be taken as 10, and so on Therefore, we can infer that color space reduction UTF-8...
Posted by lakilevi on Tue, 13 Jul 2021 03:30:14 +0930