Programmer Think

I PIL:Python image processing library PIL(Python Imaging Library), which provides general image processing functions, has a large number of useful basic image operations, such as image scaling, clipping, rotation, color conversion and so on. The following will give specific examples of some PIL basic image operations. 1. Read an image and dis ...

preface After a year, I found myself slack and didn't blog much. I also wanted to write the problems encountered in the project, but I didn't put them into action. Recently, I reconstructed some bad code of the project. When I'm free, it's also time to share the problems encountered in the project with you.Well, after nagging, today we wi ...

Image data type conversion, image stretching and band judgment Through the pit... I won't mention it. Before the training of in-depth learning, when the data sets are almost completed, that is, downloading, labeling, cutting and screening are all finished. Sent to the network for training. Due to the inconsistency of data types, the prediction ...

1, Introduction Geometric moment was proposed by Hu(Visual pattern recognition by moment invariants) in 1962. It has translation, rotation and scale invariance. These seven invariant moments form a set of characteristic quantities, Hu M. K proved that they are invariant to rotation, scaling and translation in 1962. In fact, in the process of o ...

Note: some pits explored on resample and the simple method of final discovery Requirements: there are already registered CT and PET images, and the gold standard label is drawn on CT, so there are some simple requirements. One is to resample the PET image to the same size as the CT image (for example, from 192) × one hundred and ninety-tw ...

  Today, we bring you the design of real-time image edge detection system based on FPGA. Due to the long length, it is divided into three parts. Today, I'll bring the third and second articles. I don't talk much and deliver the goods. Reading guide With the rapid development of science and technology, FPGA brings new opportunities for digi ...

1 basic knowledge of image 1.1 digital image A two-dimensional image can be represented by a matrix or array. We can understand it as a binary function f ( x , y ) ...

1, Introduction 1 PCA PCA (Principal Component Analysis) is a commonly used data analysis method. PCA is a method that transforms the original data into a group of data representation with linear independence of each dimension through linear transformation. It can be used to extract the main feature components of data and is often used for dim ...

Personal data, for learning purposes only Modification time - 21:11:31, February 19, 2022 Course of study: OpenCV4 image processing and video analysis practical tutorial Lecturer: Jia Zhigang 13 custom filtering opencv knowledge points: Convolute image with kernel - filter2DScaling takes absolute value and converts it to 8 bits - convertSc ...

1, Introduction This topic is a leaf recognition system based on MATLAB HU moment invariants. By calculating the geometric characteristics of various leaves, we can judge what type of leaves they belong to. Geometric moment was proposed by Hu(Visual pattern recognition by moment invariants) in 1962. It has translation, rotation and scale invar ...