guilhermehn

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

guilhermehn

function binToDecimal (n) {
  var i = s = 0, h
  while (h = n[i]) {
    s += (1 << n.length - ++i) * h
  }
  return s
}

guilhermehn

function getRgba (ctx, x, y) {
  var colors = ['r', 'g', 'b', 'a']
    , result = {}
    , data = ctx.getImageData(x, y, 1, 1)
  
  data.forEach(function (c, i) {
    result[colors[i]] = c
  })
  
  return result

guilhermehn

// ----------------------------------------------------------
// A short snippet for detecting versions of IE in JavaScript
// without resorting to user-agent sniffing
// ----------------------------------------------------------
// If you're not in IE (or IE version is less than 5) then:
//     ie === undefined
// If you're in IE (>=5) then you can determine which version:
//     ie === 7; // IE7
// Thus, to detect IE:
//     if (ie) {}

guilhermehn

.ir { 
	border:0;
	font: 0/0 a;
	text-shadow: none;
	color: transparent;
	background-color: transparent;
}

guilhermehn

<!-- Prompt IE6 users to install Chrome Frame -->
<!--[if lt IE 7 ]>
<script src="//ajax.googleapis.com/ajax/libs/chrome-frame/1.0.3/CFInstall.min.js"></script>
<script>window.attachEvent('onload',function(){CFInstall.check({mode:'overlay'})})</script>
<![endif]--> 

guilhermehn

/* For modern browsers */
.cf:before,
.cf:after {
    content:"";
    display:block;
}

.cf:after {
    clear:both;
}

guilhermehn

(function(d) {
  var tags = d.body.getElementsByTagName('*');
  var i = tags.length;

  while (i--) {
    var attr = tags[i].attributes;
    var ii = attr.length;

    while (ii--) {
      if (attr[ii].name.match(/^on/i)) {

guilhermehn

$(".numerico").keypress(function(e){
	var charcode = e.keyCode ? e.keyCode : e.which;
	if(charcode < 48 || charcode > 57){
		e.preventDefault();
		return false;
	}
});

guilhermehn

function valida_cpf(cpf) {
	var numeros, digitos, soma, i, resultado, digitos_iguais;

	digitos_iguais = 1;
	
	if (cpf.length < 11) return false;
	for (i = 0; i < cpf.length - 1; i++)
		if (cpf.charAt(i) != cpf.charAt(i + 1)) {
			digitos_iguais = 0;
			break;