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"
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
| class API::V1::BaseController < ApplicationController | |
| skip_before_filter :verify_authenticity_token | |
| before_filter :cors_preflight_check | |
| after_filter :cors_set_access_control_headers | |
| def cors_set_access_control_headers | |
| headers['Access-Control-Allow-Origin'] = '*' | |
| headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS' |
| build_package_patch_ruby_railsexpress() { | |
| fetch_git rvm-patchsets git://github.com/skaes/rvm-patchsets.git master | |
| for p in rvm-patchsets/patches/ruby/2.2.3/railsexpress/* ; do | |
| patch -p1 < $p | |
| done | |
| } | |
| install_package "openssl-1.0.2d" "https://www.openssl.org/source/openssl-1.0.2d.tar.gz#671c36487785628a703374c652ad2cebea45fa920ae5681515df25d9f2c9a8c8" mac_openssl --if has_broken_mac_openssl | |
| install_package "ruby-2.2.3" "https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.3.tar.gz#df795f2f99860745a416092a4004b016ccf77e8b82dec956b120f18bdc71edce" patch_ruby_railsexpress ldflags_dirs standard verify_openssl |
| <template> | |
| <div> | |
| <slot/> | |
| </div> | |
| </template> | |
| <script> | |
| // @ts-check | |
| /** |
