Tim Elfelt timelf123

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

OBSOLETE

This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.

I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.

Fixing npm On Mac OS X for Homebrew Users

Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.

RegExp.escape(string)

Computes a new version of a String value in which certain characters have been escaped, so that the regular expression engine will interpret any metacharacters that it may contain as character literals.

When the escape function is called with one argument string, the following steps are taken:

Let string be ToString(string).
ReturnIfAbrupt(string).
Let length be the number of characters in string.
Let R be the empty string.

WebSockets - An Introduction

WebSockets is a modern HTML5 standard which makes communication between client and server a lot more simpler than ever. We are all familiar with the technology of sockets. Sockets have been fundamental to network communication for a long time but usually the communication over the browser has been restricted. The general restrictions

The server used to have a permanent listener while the client (aka browser) was not designated any fixed listener for a more long term connection. Hence, every communication was restricted to the client demanding and the server responding.
This meant that unless the client requested for a particular resource, the server was unable to push such a resource to the client.
This was detrimental since the client is then forced to check with the server at regular intervals. This meant a lot of libraries focused on optimizing asynchronous calls and identifying the response of asynchronous calls. Notably t

	#!/bin/bash

	# Copyright © 2021 Chirag Bhatia

	# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

	# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

	# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOF

	var WebSocketServer = require('ws').Server;
	var wss = new WebSocketServer({port: 8080});

	var jwt = require('jsonwebtoken');

	/**
	The way I like to work with 'ws' is to convert everything to an event if possible.
	**/
	function toEvent (message) {
	try {

	#!/usr/bin/python

	'''
	Python implementation of passcode hashing algorithm used on the Samsung Galaxy S4 GT-I9505 4.2.2
	Correct PIN for hash and salt below is 1234.

	Get 40-character hash value in ascii hex format from file /data/system/password.key on the phone

	Get salt in signed numeric format by doing sqlite3 query SELECT value FROM locksettings WHERE name = 'lockscreen.password_salt' on /data/system/locksettings.db

	# Install dependencies
	#
	# * checkinstall: package the .deb
	# * libpcre3, libpcre3-dev: required for HTTP rewrite module
	# * zlib1g zlib1g-dbg zlib1g-dev: required for HTTP gzip module
	apt-get install checkinstall libpcre3 libpcre3-dev zlib1g zlib1g-dbg zlib1g-dev && \

	mkdir -p ~/sources/ && \

	# Compile against OpenSSL to enable NPN

	/************************************
	* Store Account, Campaign, and AdGroup Level Quality Score
	* Version 1.2
	* ChangeLog v1.2
	* - Changed status to ENABLED
	* ChangeLog v1.1
	* - Added APPEND option
	* - Added ability to create spreadsheet sheets
	* - Updated logic for faster spreadsheet insertion
	* Created By: Russ Savage