Table of Contents introduce Use code Introduction I do a lot of cross-platform work passing data between Windows and Android, without the benefit of writing the data to a file or assuming the data is text (aka string). Most examples you’ll find use files and assume text input and output. I always use plain byte […]
Tag: compression
Matrix singular value decomposition – information compression and noise reduction (python)
Matrix singular value decomposition – information compression and noise reduction (open_cv) ? The blogger took a mathematical modeling class today, and the teacher talked aboutThe singular value decomposition of a matrix can be used for image compression. When bloggers learned linear algebra, they did not expect that singular value decomposition could be used in this […]
find search conditions_find processing action_regular expression_linux compression command_tar append file
find search conditions_find processing action_regular expression_linux compression command_tar append file find It is a real-time search tool in Linux that completes file search by specifying a path. find [options] ….. [search path] [search conditions] [processing action] Search path: The location to search for, the default is the current folder Search conditions: Set search criteria, file […]
Data compression – Huffman text reading encoding matlab
1. Introduction to Huffman coding Huffman coding is a variable length coding (VLC, variable length coding) method. Compared with fixed-length ASCII coding, Huffman coding can save a lot of space because the frequency of each character is not consistent; consistent; It is an entropy coding algorithm used for lossless data compression. It is usually used […]
QT local file search, file/folder creation, file/directory decompression
Above code: head File #ifndef FDWINGS_H #define FDWINGS_H #include <fstream> #include <string.h> #include <windows.h> #include <iomanip> #include <io.h> #include <iostream> #include <sys/stat.h> #include <sstream> #include <QtWidgets> #include <QStringListIterator> #include <QRegularExpressionMatch> #include <QTextCodec> #include <QtGui/private/qzipreader_p.h> #include <QtGui/private/qzipwriter_p.h> using namespace std; enum MatchingMode{ Exact = 0, Simple}; class Nlwingsing { public: Nlwingsing(QStringList DTpath = QStringList(), QStringList KeyWord […]
Android image compression
Android OOM is a headache. One of the causes of OOM is pictures. Nowadays, mobile phones are getting higher and higher pixels. Any picture can be several megabytes or even dozens of megabytes. It is conceivable that such photos are loaded into the app. , just load a few pictures, the phone memory will not […]
Java binary sorting tree creation and traversal and Huffman coding decompression implementation
Binary tree is a commonly used and important type of tree structure in data structures. Binary trees can represent hierarchical structures abstracted from practical problems. Therefore, flexible and proficient use of binary trees and related algorithms is a required course for learners. A tree is composed of nodes. Just like a real tree branches from […]
Decompression and compression of txt files based on Huffman tree
Table of Contents 1. What is a Huffman tree? 2. Construct a Huffman tree 1. Create a new Node class 2. Create nodes 3. Sort the nodes from small to large 4. Construction tree 3. Huffman coding 4. Compression 1. Read text information 2. Use HashMap to count the frequency of occurrence of each character […]
[YOLOv7/YOLOv5 series algorithm improvement NO.49] Model pruning, distillation, compression
Article directory Preface 1. Solve problems 2. Basic principles 3. Pruning operation 4. Knowledge Distillation Operation Foreword As the current advanced deep learning target detection algorithm, YOLOv7 has assembled a large number of tricks, but there is still room for improvement. Different improvement methods can be used to address the detection difficulties in specific application […]
java image compression [thumbnailator version]
For Java tools, please see the link above to download immediately. You can also copy the source code below. Please indicate the source for reprinting, thank you The compression effect is impressive, and there are multiple compression modes, including single and batch processing See the comments in the ThumbnailUtil.java code for how to use it, […]