Found 26504 Articles for Server Side Programming

How to read a JPEG or PNG image in PyTorch?

Shahid Akhtar Khan
Updated on 20-Jan-2022 06:20:33

7K+ Views

Reading the images is a very important part in image processing or computer vision related tasks. The torchvision.io package provides functions to perform different IO operations. To read an image, torchvision.io package provides the image_read() function. This function reads JPEG and PNG images. It returns a 3D RGB or Grayscale Tensor.The three dimensions of the tensor correspond to [C, H, W]. C is the number of channels, W and H are the width and height of the image, respectively.For RGB, the number of channels is 3. So, the output of the read image is a tensor of [3, H, W]. The ... Read More

Node.js - process.disconnect() Method

Mayank Agarwal
Updated on 17-Jan-2022 13:13:53

679 Views

When a Node.js process is spawned with an IPC channel, the process.disconnect() method will close that IPC channel to the parent process, allowing the child process to exit or finish gracefully. The process will exit once there are no other connections keeping it alive.Syntaxprocess.disconnect()Example 1Create two files with the names "parent.js" and "child.js" and copy the following code snippets. After creating the file, use the command "node parent.js" to run parent.js.parent.js// process.channel Property Demo Example // Importing the child_process modules const fork = require('child_process').fork; // Attaching the child process file const child_file = 'child.js'; // Spawning/calling child ... Read More

Node.js - dnsPromises.resolve6() Method

Mayank Agarwal
Updated on 17-Jan-2022 13:06:06

120 Views

The dnsPromises.resolve6() method uses the DNS protocol to resolve the IPv6 addresses (AAAA records) for the hostname. The promise is resolved with an array of IPv6 addresses.Syntaxdns.resolve6(hostname, [options])Parametershostname – This parameter takes input for hostname to be resolved.options – It can have the following options −ttl – It defines the Time-To-Live (TTL) for each record.Example 1Create a file with the name "resolve6.js" and copy the following code snippet. After creating the file, use the command "node resolve6.js" to run this code as shown in the example below −// dns.resolve6() Demo Example // Importing the dns module const dns = ... Read More

Node.js - dns.resolveMx() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:57:58

522 Views

The dns.resolveMx() method uses the DNS protocol to resolve mail exchange (MX) records for the hostname. The addresses argument passed to the callback function will contain an array of objects containing both the priority and exchange objects.Syntaxdns.resolveMx(hostname, callback)Parametershostname – This parameter takes input for hostname to be resolved.callback – This function will catch errors, if any.records – Returns Mx records for the hostname.Example 1Create a file with the name "resolveMx.js" and copy the following code snippet. After creating the file, use the command "node resolveMx.js" to run this code as shown in the example below −// dns.resolveMx() Demo Example ... Read More

Node.js - process.report.directory Property

Mayank Agarwal
Updated on 17-Jan-2022 12:51:58

157 Views

The process.report.directory property is used to get or set the directory where the report is written. The default value is the empty string that indicates the reports are written to the current working directory of the Node.js Process.Syntaxprocess.report.directoryExample 1Create a file with the name "directory.js" and copy the following code snippet. After creating the file, use the command "node directory.js" to run this code as shown in the example below −// process.report.directory Property Demo Example // Importing the process module const process = require('process'); // Assigning a directory to store process.report.directory = "/tutorialsPoint" // Printing the result ... Read More

Node.js - dnsPromises.resolveMx() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:43:28

266 Views

The dnsPromises.resolveMx() method uses the DNS protocol to resolve the mail exchange records (MX Records) for the hostname. The promise is resolved with an array of objects containing both a priority and exchange property on success.SyntaxdnsPromises.resolveMx( hostname )where, hostname is the parameter that takes the input for the hostname to be resolved.Example 1Create a file with the name "resolveMx.js" and copy the following code snippet. After creating the file, use the command "node resolveMx.js" to run this code as shown in the example below −// dns.resolveMx() Demo Example // Importing the dns module const dns = require('dns'); const ... Read More

Node.js - dns.resolveCname() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:39:19

494 Views

The dns.resolveCname() method uses the DNS protocol to resolve CNAME records for the hostname. The addresses argument passed to the callback function will contain an array of canonical records in an array.Syntaxdns.resolveCname(hostname, callback)Parametershostname – This parameter takes the input for the hostname to be resolved.callback – This function will catch errors, if any.addresses – Returns CNAME addresses for the hostname.Example 1Create a file with the name "resolveCname.js" and copy the following code snippet. After creating the file, use the command "node resolveCname.js" to run this code as shown in the example below −// dns.resolveCname() Demo Example // Importing the ... Read More

Node.js - diffieHellman.setPublicKey() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:28:19

130 Views

The diffieHellman.setPublicKey() sets the Diffie-Hellman generated public key. The private key is a string if the encoding argument is provided. If no encoding is provided, the privateKey will be of type buffer, TypedArray or DataView.SyntaxdiffieHellman.setPublicKey( publicKey, [encoding] )where, encoding is the parameter that specifies the encoding of the public Key.Example 1Create a file with the name "publicKey.js" and copy the following code snippet. After creating the file, use the command "node publicKey.js" to run this code as shown in the example below −// diffieHellman.setPublicKey() Demo Example // Importing the crypto module const crypto = require('crypto') // Generating the ... Read More

Node.js - dns.resolve6() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:19:50

190 Views

The dns.resolve6() method uses the DNS protocol to resolve the IPv6 addresses (AAAA records) for the hostname. The addresses argument that is passed to the callback will contain an array of IPv6 addresses.Syntaxdns.resolve6(hostname, [options], callback)Parametershostname – This parameter takes the input for the hostname to be resolved.options – It can have the following options −ttl – This defines the Time-To-Live (TTL) for each record.Example 1Create a file with the name "resolve6.js" and copy the following code snippet. After creating the file, use the command "node resolve6.js" to run this code as shown in the example below −// dns.resolve6() Demo Example ... Read More

Node.js - diffieHellman.getPrivateKey() Method

Mayank Agarwal
Updated on 17-Jan-2022 12:13:49

148 Views

The diffieHellman.getPrivateKey() returns the Diffie-Hellman generated private key that is specified by the encoding passed. A string is returned in case if encoding is passed, else a buffer will be returned.SyntaxdiffieHellman.getPrivateKey( [encoding] )where, encoding is the parameter that specifies the encoding of the return value.Example 1Create a file with the name "privateKey.js" and copy the following code snippet. After creating the file, use the command "node privateKey.js" to run this code as shown in the example below −// diffieHellman.getPriateKey() Demo Example // Importing the crypto module const crypto = require( 'crypto' ) // Initializing the diffieHellman const dh = ... Read More

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