Using Python and Keras for principal component analysis, neural network construction and image reconstruction

the introduce These days, there's a ton of data in just about every app we use—listening to music, browsing a friend's images, or watching a new trailer. Recently we were asked by a client to write a research report on image reconstruction, including some graphical and statistical output. Principal Component Analysis PCA Di ...

Posted by ranjita on Wed, 07 Dec 2022 01:48:04 +0300

Digital Image Processing--Image Filtering

Digital Image Processing – Image Filtering 1 main content A. Select the experimental image for the experiment, complete image reading and display, and add noise to the image; B. Write the filter functions of three image filters; Among them, the general specific implementation steps of mean filtering are: 1. Select a (2n+l) x (2n+l) wind ...

Posted by jd57 on Tue, 29 Nov 2022 05:01:34 +0300

FastAPI from entry to actual combat - setting Cookie and Header parameters

The previous article recorded the content related to front-end authentication. This note mainly records the content related to the request header, including a request message analysis of http, fastapi setting cookie and parameters, fastapi setting request header parameters, etc. HTTP Request The HTTP request message is divided into three pa ...

Posted by jaymoore_299 on Tue, 29 Nov 2022 02:52:41 +0300

python data type conversion and operators

This section needs to know Reserved Words and IdentifiersUnderstanding Data Types in Pythonbasic data typeConversion between data typeseval() functiondifferent base numbersoperatoroperator precedencesmall classroom tasks 1. Reserved words true='real' True='real' File "<ipython-input-2-0244e2f5e602>", line 2 True='real' ^ ...

Posted by wardo on Wed, 23 Nov 2022 03:48:14 +0300

Python obtains free proxy IP, but few can use it?

Hi everyone, hello! I am a little panda ❤ About why IP proxy is needed: When collecting data, collecting data in batches, the request speed is too fast, The website may block your IP <Your network cannot access this site> The IP proxy changes to another IP, and then collects the request data Source code and information click ...

Posted by cavolks on Fri, 18 Nov 2022 21:22:57 +0300

LeetCode 232 uses a stack to implement a queue, 225 uses a queue to implement a stack

232. Implement a queue with a stack topic: Please use only two stacks to implement a first-in-first-out queue. The queue should support all operations supported by general queues (push, pop, peek, empty): Implement the MyQueue class: void push(int x) pushes element x to the end of the queueint pop() removes and returns an element from t ...

Posted by planethax on Wed, 16 Nov 2022 02:28:04 +0300

python function 2_ variable scope, function parameters (positional parameters, keyword parameters, default parameters, variable length positional parameters, variable length keyword parameters), unpacking, reference

I wrote a function before, there should be a total of 3 articles about the function, and I will post it here when I write it 0. Content variable scopeMulti-Function Program Execution Flowfunction return valuefunction parametersUnpack and swap the values ​​of two variablesquotemutable and immutable types 1. Variable scope The variable sc ...

Posted by m4x3vo on Mon, 14 Nov 2022 22:48:37 +0300

Python massive data generation and processing

Article directoryPython massive data generation and processingOverviewGenerate 100 million pieces of datadirect read testDownload DataView the occupied memory size:Determine the maximum number of repetitionsGenerate 1 billion pieces of datadirect read testDownload DataLoad data in chunksLoad statistics for each blockGet the value of the number ...

Posted by fleabay on Sat, 12 Nov 2022 14:57:48 +0300

Dictionary name [key name] = new value Modify the value of the dictionary

37. Dictionary name [key name] = new value Modify the value of the dictionary 1. Mutability of dictionaries Strings and tuples are immutable data types. Lists and dictionaries are mutable. Variable means that it can be changed, that is, elements can be added to lists and dictionaries, and existing elements can be deleted and modified. ...

Posted by buzzby on Mon, 24 Oct 2022 07:07:08 +0300

[NovelAI] Deploying AI drawing robots in QQ groups

Table of contents 1. NovelAI 2. UIautomation and pywin32 3. Code 1. AI drawing related 2. QQ group news capture related Fourth, the code effect Five, afterword 1. NovelAI NovelAI is an open source algorithm for drawing two-dimensional pictures. See the deployment method. b station link 2. UIautomation and pywin32 UIautomat ...

Posted by ksteuber on Fri, 14 Oct 2022 05:57:11 +0300