Tag: processing

[Data processing] python Matplotlib partially enlarges the figure; marks the local enlarged subfigure of interest

Foreword In data visualization, it is often necessary to partially enlarge the data in a certain interval to obtain a higher contrast visualization effect. The following uses the Matplotlib library of the Python language to implement a simple partial magnification effect. Dependent libraries matplotlib: plotting library numpy: an extended library that supports a large number […]

21. Integration of Flink’s table API and DataStream API (2) – batch processing mode and insert-only stream processing

Flink series of articles 1. Flink column The Flink column systematically introduces a certain knowledge point and explains it with specific examples. 1. Flink deployment series This section introduces the basic content related to the deployment and configuration of Flink. 2. Flink basic series This part introduces the basic parts of Flink, such as terminology, […]

React technical principles and code development practice: React form processing and verification

1. Background Introduction Currently, front-end technology is changing with each passing day, and new technologies are emerging one after another. React, as the most popular Javascript library at the moment, is increasingly favored by developers. React is known as “the Facebook of JavaScript”. Its advantages include componentization, declarative programming, JSX syntax, etc., and React Hooks […]

FPGA generates 3X3 image processing matrix through FIFO

In the previous series of articles on median filtering, I have written about the generation method of 3×3 matrix template: Median filter design based on FPGA—-(3) Matrix template generation module design_verilog image generation 3*3 matrix-CSDN blog Now it seems that this method is relatively crude and simple. The general processing method is to store an […]

<1>, C++ implements multi-thread synchronization processing: controlling the output sequence of ABC, outputting 10 groups, mutex+condition_variable

Table of Contents need: analyze: Some code implementation: 1. Operations implemented using only flag bits: 2. For greater security, the mutex lock code is added: 3. Use it with unique_lock to make the code safer Four: Use guard lock lock_guard to work with it 5. You can also use condition variables to process, which will […]

“Amazon Cloud Technology Product Review” event call for papers｜Building a streaming media server with “weak” image processing functions

Authorization statement: This article authorizes the official Amazon Cloud Technology article to forward and rewrite the rights, including but not limited to Amazon Cloud Technology official channels such as Developer Centre, Zhihu, self-media platforms, third-party developer media, etc. This article is based on the following software and hardware tools: +awsec2 + frp-0.52.3 + mediamtx-1.3.0 + […]

Data processing files mutual conversion

Data processing The main ones organized here are .txt, .json, .csv, .excel, .pkl Data storage and conversion between files 1. txt part 1.1 List[dict] conversion to txt specific code def save_jsonlist_txt(json_data, target_path): “”” Save json list to txt file “”” with open(target_path, “w”, encoding=”utf-8″) as file: for item in json_data: item = str(item).replace(“\ “, “\\ […]

Python Artificial Intelligence in Practice: Intelligent Signal Processing

1. Background Introduction At present, artificial intelligence technology has entered the field of automation and achieved remarkable results. It has made breakthrough progress in the fields of image recognition, speech recognition, natural language processing and other fields, but it has not received such attention in the field of signal processing. For digital signal processing, many […]