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Today, I'm going to build an OpenCV environment on my notebook Ubuntu 20.04. The recording process is as follows. 1. Start 1.1 installing dependent Libraries # Install, compile, download and other tools # Build essential is used to download gcc, g + + and other compilation tool chains sudo apt-get install build-essential cmake git pkg-config ...

1. Basic concepts of digital image 1.1 digital image concept Digital image, also known as digital image or digital image, is the representation of two-dimensional image with finite digital pixels. Represented by an array or matrix, its illumination position and intensity are discrete. Digital image is an image obtained by digitizing analo ...

Opencv java to achieve basic graphics operations This is the second blog I came up with after I finished my image processing homework. In the last issue, I briefly introduced how to use opencv in the springboot environment. In this issue, I will continue to briefly talk about the basic operation of OpenCV in Java version. In my understanding, ...

The first time you try to write a blog, just write an essay! Recently, I was working on a small project. I need to detect the target contour, and only the inner contour is needed. The contour detection function findContours provided by OpenCV is particularly convenient to use. The hierarchical relationship between contours can be used to find ...

catalogue Tool function cv::alignPtr() cv::alignSize() cv::allocate() cv::deallocate() cv::fastAtan2() cv::cubeRoot() cv::CV_Assert() & cv::CV_DbgAsser() cv::error() cv::CV_Error() & cv::CV_Error_() cv::fastFree() cv::fastMalloc() cv::format() cv::getCPUTickCount() cv::getNumThreads() cv::getOptimalDFTSize() cv::getTh ...

1, Digital image processing 1.1 converting color image files to grayscale files gray image Gray image is an image with only one sampling color per pixel. This kind of image is usually displayed as a gray scale from the darkest black to the brightest white. In theory, this sampling can be different in the depth of any color, or even differ ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it preface Tip: the project needs to identify the real-time collected pictures and identify the floating-point numbers in the pictures The idea is as follows: CV is used to process the image ...

1. Data reading - image cv. The imread() function reads the image 1.1 several ways to read images:                         cv.IMREAD_COLOR: loading color images           & ...

catalogue 1, Basic theory 1. Thought 2. Principle 2, Process Step induction 1. Convert the original image to binary image 2. Open operation denoising 3. Determine the background area (expansion) (get the background / maximum pass area) 4. Determine foreground area (distance transformation) (separation) (get seed / foreground) 5. U ...

brief introduction   with the gradual deepening of research, I learned that loading the pytorch training model with libtorch is actually a very tortuous method. It can indeed meet our needs, but it may not be the best method. Now the more common model format is ONNX model, so I wonder if I can use this general model to solve the problem? ...