Programmer Group

GUI Orthogonal Latin Square+2-D Arnold Scrambled Image Encryption 1. Introduction 1 Purpose of digital image scrambling Up to now, more mature information hiding algorithms are basically based on images as carriers. Image scrambling, as the name implies, is to scramble the image to hide the real content of the original image. Digital image ...

In time series reconstruction, because A-G filtering and D-L filtering must be used in the experiment, these two classical methods are difficult to implement in python and there are few data, so we can only use the functions encapsulated by TIMESAT software. In this process, we have encountered many pits and problems... Record. The normal opera ...

FCM algorithm is a clustering algorithm based on partition. Its idea is to maximize the similarity between objects divided into the same cluster and minimize the similarity between different clusters. Fuzzy C-means algorithm is an improvement of ordinary C-means algorithm. Ordinary C-means algorithm is hard for data division, while FCM is a f ...

Transplanting neural network to STM32 A recent project needs to use the network for fitting, and use the fitting results as control. I wonder if I can do neural network calculation directly on the single chip microcomputer, so that I can calculate in real time without relying on the upper computer. Therefore, there are two main problems to be ...

Brief background introduction Today, the stupid younger martial brother exported a simulation data with comsol. Open it with matlab to see that it is a data length 189739 × 3 189739×3 one hundred and eighty-nine ...

Today, we introduce an example of using MVC design pattern to build GUI in PyQt5. This case comes from Chapter 7 of MATLAB object-oriented programming - from introduction to design pattern (version 2). For details about the GUI tool design of deposit and withdrawal, please refer to pages 127 ~ 160. The final interface created by PyQt5 is as fo ...

1, Theoretical basis 1. Node coverage model 0 / 1 coverage model is adopted in this paper. Please refer to for specific description here. 2. Symbiotic biological search algorithm (SOS) SOS algorithm imitates biological behavior, and finally forms three evolutionary stages of "mutually beneficial symbiosis", "favorable sy ...

1 Introduction to algorithm 1.1 introduction to the principle of BP neural network Neural network is the basis of deep learning. It is widely used in machine learning and deep learning, such as function approximation, pattern recognition, classification model, image classification, CTR prediction based on deep learning, data compression, data ...

preface The previous article introduced the basic knowledge of chaos, including three classical chaotic maps and Hodgkin Huxley model. This paper will introduce text encryption based on chaotic mapping. This chapter first introduces the cryptosystem based on the traditional DES algorithm and the typical text cryptosystem based on chao ...

1, Introduction to DTMF 1 meaning Dual Tone Multi Frequency DTMF (Dual Tone Multi Frequency) is composed of high-frequency group and low-frequency group, and the high-frequency group and low-frequency group each contain four frequencies. A high-frequency signal and a low-frequency signal are superimposed to form a combined signal, representing ...