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preface Simply record the notes about the image operation part of opencv 1, Auxiliary tool Image Watch Image Watch is a free and powerful image data viewing plug-in. During image viewing, it can display its pixel value and channel number, which is very helpful for viewing results after image operation. Download address attached VS2 ...

Basic principle: logical XOR operation Python is a programming language without much introduction; OpenCV is a cross platform computer vision and machine learning (partially open source) software library based on BSD license. At present, it has supported many languages, such as C, C + +, python, Java and MATLAB. Here, choose one of the langua ...

preface: CMake is a cross platform installation and compilation tool, which can describe the installation (compilation process) of all platforms with simple statements.CMake has become the standard configuration of most C + + open source projects CMake official documents Cross-platform development What you will do if you want to add new ba ...

preface Early methods for image rotation were: cv2.imread() reads the imagenumpy rotating imageSave the rotated image CV2 Imwrite() and read the image again Because of the basic operation of images, I am a little white and have never touched anything. Therefore, the early idea is like this. This method is simple and clear, but ...

OpenCV learning notes (3)_ Examples of gray threshold filtering and connected domain analysis in OpenCV 1. Example source Today's example comes from Halcon's example program: threshold.hdev read_image (Audi2, 'audi2') fill_interlace (Audi2, ImageFilled, 'odd') threshold (ImageFilled, Region, 0, 90) connection (Region, ConnectedRegions) ...

Download and install TensorRT-7.2.2.3 Download tensorrt-7.2.2.3 on the official website Ubuntu-18.04. x86_ 64-gnu. cuda-11.1. cudnn8. 0.tar. gz tar xzvf TensorRT-7.2.2.3.Ubuntu-18.04.x86_64-gnu.cuda-11.1.cudnn8.0.tar.gz Configure environment variables after decompression: sudo vim ~/.bashrc After entering, add environment variables at th ...

1, Basic image processing -- operation All the following functions are omitted cv2. 1.1.1 addition operation As has been said before, for a computer, an image is just a matrix. The addition of images is the addition of matrices. We use the add(a, b) function to realize the image addition operation. Note: when a + B < = 255, a+b = a+b; ...

Libtorch It is the C++ API officially provided by pytoch, and the use method can be said to restore pytoch to a great extent. 1, Environment configuration GitHub address: BASNetVS2017+CUDA 10.1+cuDNN 7.6.5+OpenCV 3.4.11Pytorch 1.5.0+torchvision 0.6.0Libtorch 1.5.0 (release): extraction code: 865k https://pan.baidu.com/s/1Ty-UPZWEOnNRPwl ...

1 image noise Because the process of image acquisition, processing and transmission will inevitably be polluted by noise, which hinders people's understanding, analysis and processing of images. Common image noises include Gaussian noise, salt and pepper noise and so on. 1.1 salt and pepper noise Salt and pepper noise, also known as impulse ...

1, Introduction Image processing can be divided into two parts, spatial domain (time domain) and frequency domain. Spatial domain is the direct pixel processing of the image, which can be divided into two ways: gray transformation and filtering. Gray change is to adjust the gray value of a single pixel, and filtering is for the whole image. Le ...