Antonio Sánchez antonioJASR

The Case For Go

Using Google Cloud Vision API's OCR to extract text from photos and scanned documents

Just a quickie test in Python 3 (using Requests) to see if Google Cloud Vision can be used to effectively OCR a scanned data table and preserve its structure, in the way that products such as ABBYY FineReader can OCR an image and provide Excel-ready output.

The short answer: No. While Cloud Vision provides bounding polygon coordinates in its output, it doesn't provide it at the word or region level, which would be needed to then calculate the data delimiters.

On the other hand, the OCR quality is pretty good, if you just need to identify text anywhere in an image, without regards to its physical coordinates. I've included two examples:

####### 1. A low-resolution photo of road signs

Rails Migration

http://guides.rubyonrails.org/migrations.html

Migrations methods:

add_column
add_index
change_column
change_table
create_table
drop_table

The current kernel/drivers of Fedora 24 do not support the Wifi chip used on my Mac Book Pro. Proprietary Broadcom drivers are packaged and available in the rpmfusion repo.

Verify that your card is a Broadcom using: lspci -vnn -d 14e4:

Sample output:

02:00.0 Network controller [0280]: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03)

Install

Install the rpmfusion repo, note only "nonfree" is required, as the Broadcom Driver is proprietry: http://rpmfusion.org/

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

	#! /usr/bin/env python
	# See http://preshing.com/20130115/view-your-filesystem-history-using-python
	import optparse
	import os
	import fnmatch
	import time

	# Parse options
	parser = optparse.OptionParser(usage='Usage: %prog [options] path [path2 ...]')
	parser.add_option('-g', action='store', type='long', dest='secs', default=10,

	<!--
	This disables app transport security and allows non-HTTPS requests.
	Note: it is not recommended to use non-HTTPS requests for sensitive data. A better
	approach is to fix the non-secure resources. However, this patch will work in a pinch.

	To apply the fix in your Ionic/Cordova app, edit the file located here:

	platforms/ios/MyApp/MyApp-Info.plist

	And add this XML right before the end of the file inside of the last </dict> entry:

	#!/bin/bash
	yum install -y aws-cli
	cd /home/ec2-user/
	aws s3 cp 's3://aws-codedeploy-us-east-1/latest/codedeploy-agent.noarch.rpm' . --region us-east-1
	yum -y install codedeploy-agent.noarch.rpm

	#!/bin/bash

	# A script to set up a new mac. Uses bash, homebrew, etc.

	# Focused for ruby/rails development. Includes many utilities and apps:
	# - homebrew, rvm, node
	# - quicklook plugins, terminal fonts
	# - browsers: chrome, firefox
	# - dev: iterm2, sublime text, postgres, chrome devtools, etc.
	# - team: slack, dropbox, google drive, skype, etc

	cd my_rails_app_root_dir
	rm bin/*
	bundle exec rake rails:update:bin
	bundle binstubs rspec-core
	spring binstub --all