TheJoe.it Into the (open) source

30Oct/106

Change the dpi / ppi of an image with Gimp

schema_dpi

I often find myself having to create images that serve as separator content within prints, or some simple graphic effects created with tracked, or with letters. I'm thinking of something very simple, that surely even in the old schoolbooks we were used to seeing without realizing.

Occasionally, however,, I happen to create the new image, save, and realize that the work is finished the dpi is too low Gimp because those who apply by default are 72, excellent to the web but too little for a detailed Print quality. Today we see how increase the dpi of an image we have already saved with Gimp 72 dpi, and the portarla 300 (great for Print).

26Oct/1012

TCPDF: a PHP library to convert web pages to PDF

tcpdf_logo

Today we talk about software that carries on his shoulders 8 years of programming and mature to the point to be used as default in Joomla, one of the main CMS open source used today by millions of satisfied users around the world.

19Oct/101

Il plugin Resynthesizer per Gimp

finale3

Who said that PhotoShop always comes before Gimp? The plugin we are talking about today was developed natively for Gimp, was then invented something similar to PhotoShop.

Maybe someone does not play the new plugin "Content aware filling" per PhotoShop. Well, "Resynthesizer" is an algorithm developed as a research project of the University 2001 subsequently led to plugin for Gimp long before that were created "Content aware filling". But let's start from the beginning. Start by saying that "Resynthesizer" is a plugin that fully automatic removes by selection the objects in the picture if placed on a plot, filling the space Missing the selection with the same color of the background, trying to keep the texture uniform. This plugin can be very useful for example if we were to touch up the photo of a sunset sky with a pole in the foreground.

18Oct/100

A small donation can not only be good

wikipedia-logo

Today nothing technical, Wikipedia examine the case and expand the discussion to open source and communities.

As is well known, Wikipedia does not present any type of advertising between its pages, even conveyed. This is a great advantage for the user, it translates into a disadvantage in terms of income for those who build Wikipedia. So how do you "stand" the entire property? Who pays the web space? The answer is simple: users of goodwill that, the hands of the credit card, decide to donate part of their wealth to philanthropic association of the same name, la Wikimedia Foundation.

16Oct/100

Against spam: “10 minute mail”

spam_ziogeek

Today we speak of a small but very useful service that I use for several years and which I use often: "10 minute mail".

As the name "10 minute mail" is an email address to 10 minutes, valid ie the time to register in a site that we do not trust the way down and wait for the verification of to certify that the registration email is actually owned by us.

14Oct/100

As I solved the problems with the disks “fsck”

lacie_hd

A few years ago I bought a USB Disk sternum because of the limited space that I could offer to the files inside the computer (and also for me some healthy backup at regular intervals), and I opted for a nice LaCie the 1tb memory. I'm talking about even a few years ago, it was in fact the most capacious hard on the consumer market.

Just today, despite the apparent normal ignition, I realize that in addition to the classic blue light indicates that the operation of the device, he's added una rossa that certainly does not make me hopeful. I'm going to ripescarmi the PDF manual that I had lungimirantemente copied to my hard drive and I find that the red light indicates a disk error.

7Oct/100

Tutorial: highpass filter con Gimp

Setting the blur 30 pixel

Today we talk about "Highpass filter", a technique widely used in modern advertising to make "soft" images.

Obviously for all the work will adopt Gimp as a program for image manipulation.

This tutorial applies to entities, faces, views and, as we shall see, is perhaps the most widely used technique in magazines advertising.

In this tutorial we work on a subject. The image comes from Flickr.

6Oct/100

Javascript

javascript-pic

Today we talk about javascript, not how to program, but how to implement the free resources already present in the web.

Javascript is a programming language to objects oriented web, and mainly used in this area. All major browsers (Firefox, IE, Opera, Safari, Chromium) support the use of javascript, the substantial difference between browsers (and above the target they point to) is the speed of execution.

4Oct/100

Tilda: terminal disappearance

tildalogorc2

Today we speak of "Tilda”, a small utility for GNU/Linux useful to those who are getting to grips with the terminal.

Tilda is a small terminal disappearance, called up by pressing a key or combination of keys more. The project open source "Tilda" is very small, and the only objective of the project is the "terminal disappearance”.

2Oct/100

Resize all images in a directory

scale

This mini-howto is taken from blog in Kayowas.

Imagemagik is an exceptional tool, I would say essential, it allows an almost endless array of processing on the images.

In systems derived from Debian, the installation is quite a:




[user@localhost ~]$ sudo apt-get install imagemagick

To vary the size of all images in a given directory, you must use the tool "mogrify"In the following way: