Thursday 30 May 2013

Samsung Galaxy S4: 1 in 8 Will Break in Six Months

In the next six months, one of every eightSamsung Galaxy S4 devices sold will be broken by the owner thanks to a drop, dunk in a toilet or worse.

According to a new set of data out from SquareTrade, Android owners need to be more concerned with accidental damage than from someone who will steal their new Galaxy S4. The company claims Android smartphones like the Samsung Galaxy S4 are 13 times more likely to suffer from water damages, drops and cracked screens than a loss or theft.

This is an important statistic to keep in mind as the company claims one in five Americans plan to buy the Samsung Galaxy S4 and combined Americans spent $7.2 billion on damaged Android phones in the last six years.

The Samsung Galaxy S4 may not be able to survive drops any better than the Galaxy S3.

We’ve already seen how the Samsung Galaxy S4 can survive knives keys and coins, but we have yet to see how the plastic design and Gorilla Glass 3 cover can withstand a fall.

Samsung skipped over a metal design like the HTC One, using a stronger lighter plastic than the Galaxy S3 for the new flagship phone. This plastic back may scuff when dropped, but unlike metal, users can purchase a replacement back for the smartphone.

Google Play Music All Access on its Way to iPhone, iPad Users

Google Play Music All Access, the music streaming subscription service the company debuted this month at Google I/O, is coming to iPhone and iPad users soon.

That’s according to remarks made by Google’s Sundar Pichai onstage at the D11 conference. While being asked by Walt Mossberg about why the company seems to have no problem making its applications and services available to users of Apple’s iOS for use on the iPad and iPhone, Pichai noted that the company does so because it’s “in Google’s DNA.”

Google-IO-2013-Play-Music-All-Access-001

He then continued to say: “We brought Google Now to iOS. A couple weeks from now we will launch Google Play Music All Access for iOS.”

This is the first time that the company has publicly acknowledged any kind of timeline for Google Play Music All Access for iPad and iPhone users, though the company does indeed have a pretty decent track record of making its software and services available to users of Apple products.

Need a little motivation boost? Finding it hard to hit the gym or the streets for that early 6 in the morning run?

Well then, we have just the fix for you.

A motivational work of art to inspire you to push your fitness to the limit.

The Ultimate Motivational Clip – Rise & Shine

“Rise and shine.

6am and your hand can’t make it to the alarm clock before the voices in your head start telling you that it’s too early, too dark, and too cold to get out of a bed.

Aching muscles lie still in rebellion, pretending not to hear your brain commanding them to move

A legion of voices are shouting their unanimous permission for you to hit the snooze button and go back to dreamland, but you didn’t ask their opinion.

The voice you’ve chosen to listen to is one of defiance.

A voice that’s says there was a reason you set that alarm in the first place. So sit up, put your feet on the floor, and don’t look back because we’ve got work to do.

Sony Xperia S Jelly Bean Update Starts Rolling Out

The long-awaited Sony Xperia S Android 4.1 Jelly Bean update has started to roll out to owners today, just hours before the arrival of Sony’s self-imposed deadline of May.

After weeks of confusion and unrest from owners of the Sony Xperia S, the device has finally received its update from Android 4.0 Ice Cream Sandwich to Android 4.1 Jelly Bean. At the end of April, Sony promised the update by the end of May and fortunately, the company delivered on this promise. The update is indeed rolling out, something confirmed by Sony itself, but it’s not clear exactly where it’s rolling out.

XperiaBlog confirmed that it has touched down in France, at the very least, but we imagine that other regions will be close behind. Keep in mind, we heard some regional arms of Sony, like Brazil, confirm the software for the month of June. So we imagine that while some owners will get it during the month of May, others won’t see it touch down until next month.

The Sony Xperia S Jelly Bean roll out has begun.

The Peugeot RCZ could not have arrived at a better time, styling for coupes had grown weary and even the refreshed Audi TT was beginning to lose its shine. So Peugeot stepped up to the mark and released a car that not only looked unlike anything anyone had seen in its class but also marked the real foundation of Peugeot’s new design direction.

Thankfully the 2013 RCZ GT THP200 is spearheading once again, while it may not look that different at first glance, the body has been given a serious re-working with the rear haunches now much more prominent while the headlights are now angled in such a way that the car appears much lower to the ground.Along with these changes, the RCZ now proudly sports a front grill which actually looks in proportion with the car, a long way from the original gaping mouths that adorned Peugeot’s first set of new-look cars in 2011.

The rear-window is still a showcase of design winning over logic with its double curve catching the eye of most passers by even today.

Under the hood things are looking up as well. It’s important to note that while this is Peugeot’s top of the range RCZ it can’t really be compared with Audi’s equivalent – not only does the TT RS cost just under twice as much but it’s also a LOT more powerful. Luckily by saving yourself around £18k you’re not losing too much performance.

The RCZ GT THP200 we tested comes with a 1.6 Petrol engine that pumps out 200bhp and will see you sprinting to 60 in a respectable 7.6 seconds. It’s no hot hatch but then again the RCZ has been more about the journey than getting there faster than anyone else.

Peugeot RCZ GT THP200: Tech

Despite being a 2013 model the RCZ does not come with the new touchscreen interface that we first saw on the Peugeot 208 156THP.

Instead Peugeot has gone for a much more solid 7-inch 800x480 display which rises out of the centre console. This can then be controlled from either the steering wheel or dashboard eliminating any distraction by moving your hands away from the wheel.

The UI is simple but effective boasting Peugeot’s own satnav and multimedia system, on the dashboard itself you get a secondary colour screen which then relays essential navigation information along with the usual mileage info.

All of this sounds pretty run of the mill and you’d be right, where things get interesting however is when you decide to upgrade and get the custom-designed JBL sound system.

The RCZ already comes with Arkamys audio processing as standard, which means that the car will intelligently move the sound around the vehicle depending on speed, acceleration and outside noise making sure everything feels balanced.

The JBL high-end option then adds to that 2 medium Hi-fi tweeters, 2 Hi-fi woofers and 2 coaxial elliptical 6x9 Hi-fi speakers in the rear. All of this comes together via the 240W digital amp which is located in the boot.

The output is impressive to say the least. Bass is deep and aggressive while the high-notes almost hit the point of being too shrill but thankfully this can always be solved by hitting down on the accelerator, hard. Joking aside this is a genuinely brilliant sound system and one that would have even the most stoic of car park-based customisers gently nodding his head in sage approval.

Peugeot RCZ GT THP200: Verdict

With the tech out of the way it’s important to point out that over half of your attention will be directed to the fact you’re moving along tarmac at considerable speed. Luckily the RCZ performs admirably in this area as well.

The steering is much tighter than you’d expect for such a big car while the suspension is significantly softer than that found on Peugeot’s smaller cars. This isn’t a bad thing: the THP156 made you feel like you were driving a very fast steamroller around a road network made exclusively with cobbles.

Instead what you have is a good balance that still lets you feel like you have some communication with the road whilst making sure your spine doesn’t the brunt of any potholes.

Throw all this together and what you’re left with is a very comfortable, long-range tourer that offers a genuinely thrilling driving experience not just because of the way the car feels from A to B but also thanks to the soundtrack you’ll have playing while you do it.

Peugeot RCZ GT THP200: £26,380 (prices start at £21,595)

New Gmail Adds Category Tabs to Tame Inboxes

Google will once again attempt to tame the inboxes of users across the world. This time it’ll attempt to do so with a newly revamped user interface for the company’s Gmail on iOS, Android and web versions.

The changes, which were announced earlier today on the company’s Official Gmail Blog, will seek to address the clutter of email with an updated inbox by dividing and categorizes the email of users based on the common types of email users receive.

For example, emails sent to users by social networks would surface in the “Social Updates” category of the user’s inbox, while offers and promotions sent to users by retailers would end up in a new “Promotions” category of their Inbox. Users will be able to choose the categories they want.

Moto X Phone Confirmed, Release by October

Motorola took the stage today at the D11conference and announced its first big name smartphone for 2013, a phone currently dubbedMoto X, a device that will be built in Texas and one that will come to compete against the likes of the Samsung Galaxy S4 and HTC One by October of this year.

Over the past few months, rumors of a Motorola X Phone seeped to the surface on a semi-regular basis, teasing consumers who are in the midst of a full blown battle between the likes of the Samsung Galaxy S4, HTC One and the iPhone 5. Until today, the Motorola X phone remained a myth, that is, until Motorola executive Dennis Woodside confirmed the device, known as Moto X, on stage at the D11 conference.

The Moto X will be Motorola’s big name smartphone of the year replacing the Droid RAZR HD.

Woodside was light on the details but did confirm a few features of the device now known as Moto X. Apparently, the phone will primarily be built in the United States with 70% of the labor occurring at a facility in Texas. The processors will be outsourced from Taiwan while the OLED screens will be brought in from Korea.

Top 10 computer mouse tips everyone should know

Most computer users don't take full advantage of the computer Mouse. Below are computer mouse tips and secrets that help you get the full potential of your computer mouse and increase your overall productivity while on the computer.

Shift key and mouse click

Many text editors and programs allow you to highlight all or portions of text using the Shift key and the mouse. For example, place the cursor at the beginning of a paragraph in a text editor, hold down the Shift key and click at the end of the paragraph to highlight the full paragraph.

Bonus tip: Holding down the Alt key while dragging and highlighting text in a text editor will allow you to selectively highlight text. This can be useful if your paragraph or other text is in a column.

Take full advantage of the scroll wheel

Today, everyone is familiar with a mouse wheels ability to scroll up and down on a page. However, this wheel can also do so much more, below are just a few examples.

The mouse wheel is not just a wheel, it can also be used as a button. Pressing down on the wheel will act like a third mouse button. This can be used to open a web page in a tab by clicking the wheel on any link and can also be used to close a tab by clicking the wheel on any open tab.
Holding down the shift key while scrolling up or down in a Internet browser will quickly go back and forward between web pages.
Zoom in and Out on a web page, word document, excel spreadsheet, etc. by holding down the Ctrl key and scrolling up to zoom in and down to zoom out.
Move forward and backwards while browsing the Internet by holding down the Shift key and scrolling up and down. Scrolling down goes back and scrolling up goes forward.
Some mouse wheels can be pushed left or right to also move back and forward on a web page.

Twitter is certainly admired Social media website for sharing photos world-wide. Twitter does not allow simply retrieving images shared by a user, apart from the option of downloading them one by one from the web interface.

Actually Twitter does not showing photos like Facebook or Flicker, Twitter show photo with sliding tools or with automatic change feature.

To retrieve images of a person who publishes a lot, the method may be a little tedious.

With the Twitter image Downloader automates the download on the last 150 images published by a Twitter user'schoice.

How to download pictures from Twitter profile with Twitter Image Downloader?

Firstly download the Twitter Image Downloader software from the link below

Download Twitter Image Downloader

After downloading just launch it. The interface looks like this.

In the white box just type the Twitter user name (As I type Dinesh Thakur) of desired person whose you like to download pictures. Next click on Download button.

Twitter for which you want to download images then a Download button to begin downloading the images.

A priori, nothing happens, it takes a lot of time, and then after a few seconds the thumbnail images begin to appear in theviewing window. No interaction is possible from this window, the program simply points when downloading all images is completed.

In fact, the images are downloaded to a folder location from which was launched Twitter Image Downloader, a folder is created for each user that contains the full-size images as they were posted on Twitter.

Protect your Computer with Mouselock

bet365 Bonus

Mouselock fun is a web application that is designed to alert you via email as soon as a person try to take a look at your computer while you pee break or coffee to discover all your little secrets.
To start using this protection, you must authenticate to a Google Account to be used for sending mails. If your PC is equipped with a webcam, the picture of the person taking insensitive flag is attached to the message.

After authentication, you must enter a security code and place the mouse cursor in the space provided for this purpose on the screen and click. This code is used to unlock the mini protection.
If someone comes to move the mouse cursor and moves out of its housing, the intrusion is detected and it has a few seconds to enter the security code that has been defined in the first step. If the code is not entered correctly, an email with possibly the odd photo is sent. It also contains the date and time the package.
Then remains to manage the debriefing will follow the person guilty of this crime.If you can't lock your screen completely, this is a way to at least catch the culprit.

This DIY Super Laser Can Cut Through A Ping Pong Ball

There are few things as satisfying – and dangerous – as burning through stuff with a laser. Drake Anthony AKA Styropyro is a young man who enjoys making DIY lasers out of things, and he recently completed a 3000mW laser made from the diode of an old DLP projector that can blow out a beam so hot that it burns paper, plastic, and electric tape in seconds.

Considering the most powerful handheld laser you can buy clocks in at 1,400mW, Anthony’s laser is pretty powerful. He has an entire YouTube channel dedicated to his potentially-damaging efforts, although this light-saber-esque laser is probably his most impressive feat yet.

Considering he makes is enclosures and the electronics himself and he’s still in his teens, it looks like Styropyro has a long career ahead of him training his laser cannons on enemy attack ships on fire off the shoulder of Orion.

via Giz

Apple to introduce a smaller iPad on October 23rd.

What We Expect

Apple is holding a media event on October 23 where we expect the company to release a new "iPad mini". The name may or may not be exactly that, but it does seems certain Apple will be introducing a smaller iPad at that time.

Size comparison mockup of iPad mini (left) vs regular iPad (right)

The iPad mini will have a 7.85" (diagonal) screen as compared to the 9.7" screen of the full-sized iPad. The smaller iPad will also have a narrower bezel on the left and right to help reduce the overall physical size of the device. That will make the device more "purse-able" and put it head-to-head with 7" tablets such as the Amazon Kindle Fire.

EA has announced in a blog post that its Maxis studio will release The Sims 4 for the Mac and PC in 2014.The company released no other details about the game, but said more information would be forthcoming.

Today we are revealing to our top fans the fact that The Sims™ 4 is coming to PC and Mac in 2014.

The Sims franchise is fueled by the passion and creativity of its millions of fans around the world. Their continued devotion to the franchise ignites the fire of creativity of the team at The Sims Studio, driving them to continually improve and innovate on one of the world’s most successful simulation game that has sold more than 150 million copies worldwide.

On another note, the new Sim City will arrive on the Mac June 11th.

Apple Named World's Most Valuable Brand for Third Year in a Row

Millward Brown today released its annual BrandZ study of global brands(via AllThingsD), which found Apple to be the world's most valuable brand for the third straight year.

Although Apple topped the list once again, its brand value only increased 1% to $185 billion, which is not as impressive as the 19% increase (from $153 billion in 2011 to $183 billion in 2012) it received last year. Apple rival Google jumped back up to the second spot with a brand value of $137 billion (a 5% increase) and Samsung clocked in a 51% increase and a $21.4 billion brand value at the 30th spot.

brandz2013

Overall, Millward Brown said that the technology sector was "flat," declining after 5 years of growth:

Without the surge in Apple and Facebook brand value that helped drive category growth, Technology declined 1 percent in the BrandZ™ 2013 ranking, after five years averaging 8 percent annual category growth.

Among other top brands, IBM fell down to the third spot with a brand value of $112 billion while Microsoft dropped 9% to $69.8 billion and Facebook fell 36% to $21 billion. Yahoo, which fell out of the top 100 years ago, returned to the 92nd spot with a brand value of $9.8 billion.

While "brand value" studies can be difficult to compare, because of the use of differing methodologies used by those who gather the data can lead to much different results, they can be a good look at marketing and branding trends.

Apple Announces 2013 iTunes Festival in London Scheduled for September

Apple today announced that it will once again hold its monthlong iTunes Festival in London this year, with 30 nights of concerts at The Roundhouse during the month of September. The full schedule of performances is yet to be announced, but Apple has revealed that the lineup will include Justin Timberlake, Thirty Seconds to Mars, Jack Johnson and Jessie J.

“This year’s iTunes Festival is the best ever with an incredible lineup of global superstars and stellar emerging artists,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “Music fans around the world are going to love watching this incredible month of music, whether in London at the Roundhouse or on their iOS device. We’re honored so many renowned artists are part of this year’s lineup.”

Free tickets for the concerts are available through iTunes in a lottery system, with media partners in the United States, Australia, Brazil, Canada, Europe, Japan and Mexico also giving away tickets as part of promotional competitions. The concerts will also be broadcast via iOS app, iTunes on the computer, and Apple TV.

Apple also typically releases a series of live EPs from each year's shows through the iTunes Store.

Apple traditionally sponsored the iTunes Festival each July since its inception in 2007, but last year moved the festival to September and has opted to keep to that schedule for 2013. More details on the concert lineup and schedule will be released over the coming weeks and months.

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Apple Adds A New iPod Touch With 16GB Of Storage And No Rear Camera For $229

Apple today dropped a mid-cycle refresh of the iPod touch, its iOS-based iPod, with 16GB of storage on board and without a rear camera, for $229. This slots in its existing lineup between the refreshed, fifth-generation iPod touch, which has a rear camera (and a loop for attaching a wristband), and the iPod nano.

The new iPod still has the same 4-inch Retina display you’ll find on the existing iPod touch and the iPhone, but it only comes in one color, black and silver, and it replaces the 16GB fourth generation leftover which Apple had offered since introducing the fifth-generation touch, presumably to fill the price gap between it and the 32GB $299 model of that lineup. The fourth gen models had been available for $199 for 16GB, and $249 for 32 GB, so this threads the needle between those two options in terms of price point.

You’ll still get the front-facing FaceTime camera, with 720p HD video recording on this device, the same A5 processor, and the same battery life. The new iPod touch variant is actually .06 ounces lighter than the existing versions, however, which is probably the weight of the rear camera module component. It also boasts the same Bluetooth 4.0 and Wi-Fi capabilities as the fifth-gen device.

As MacRumors points out, this refresh was actually predicted by KGI Securities’ analyst Ming-Chi Kuo, who has an impressive track record on products so far, though he also predicted an 8GB model, too. Still, the fact that he nailed the lack of a camera and the price point on the 16GB model is impressive.

Apple has seemed more open to making changes that go beyond internal specs on products mid-update cycle, including the iMac, which got a VESA-compatible variant earlier this year. I suspect that Apple needed its component and manufacturing costs to get to a point where this version would become viable in terms of its margin expectations, and also that it probably benefitted from clearing the supply lines of the fourth generation model by waiting this long to introduce this variant, but it still might be indicative of a new way Apple is thinking about product releases.

BEST PLACES TO VISIT IN MUMBAI

Welcome to mumbai

Overview
Mumbai Map

Home to Bollywood, India's fashion capital and a centre for the gem trade, Mumbai can be overwhelming, but this city of contrasts is also endlessly fascinating. Squeezed onto a small island connected by bridges to the mainland, Mumbai is India's largest city and financial epicentre, home to great wealth, extortionate real estate, glistening skyscrapers and fashion-savvy locals. But Mumbai is also a city of extreme inequality where affluence and abject poverty sit side by side. The busy streets are packed with grand colonial architecture, a myriad of temples and mosques, and many ancient bazaars. Visitors can immerse themselves in colonial history at Chhatrapati Shivaji Terminus or dive into modern-day life at the Dhobi Ghat; dance 'till dawn in swanky bars or hang out with a cold beer in legendary backpacker haunts; eat at some of India's best restaurants or find a sandy seaside spot to sample Mumbai's most popular snack, bhelpuri. But however you choose to experience Mumbai, one thing is for certain: amid the colour and chaos, the city is certain to leave an impression.

History

Mumbai owes its colourful present to its equally interesting past. Originally a group of seven islands inhabited by Koli fishermen, the area was surrendered to Portugal in 1534 who in turn handed it over to Britain in 1661. Three years later, the city (then called Bombay) was leased to the East India Company who governed the area until 1858 when control passed back to the Crown. The city stayed in British hands until independence in August 1947, and it was during this 90-year period that modern Bombay really took shape.

Gateway of India

The bold basalt arch of Mumbai's Gateway of India was built by the British to commemorate King George V and Queen Mary's visit to India in 1911. Designed by George Wittet, the foundation stone was laid in 1911 but the gateway itself was not completed until 1924. The design is a mixture of Hindu and Muslim architectural styles; the pillars are similar to those found in Hindu temples and the windows derived from Islamic architecture. In earlier times, the Gateway was one of the first sights visitors arriving by boat would have seen of Mumbai. These days it attracts a colourful crowd of tourists, hawkers and beggars.

Chhatrapati Shivaji Terminus (CST) (formerly Victoria Terminus)

Now the headquarters of the Central Railway, this magnificent terminus building (commonly known as CST or Bombay VT) was completed in 1888 for the Great Indian Peninsular Railway. Designed by the architect FW Stevens, it is one of the world's grandest railway stations and was added to the UNESCO Wold Heritage list in 2004. A wonderful mixture of Victorian Gothic, Hindu and Islamic styles, the magnificent building is awash with domes, turrets, spires and stained-glass windows, and boasts a particularly beautiful staircase. Not bad for a train station that happens to be the busiest in Asia.

Shree Siddhivinayak temple

Shree Siddhivinayak temple is dedicated to God Ganesha (Ganpati). Shree Ganesh (Ganpati) is the first to be worshipped before beginning any new project or venture as he is the destroyer of obstacles. This is Shree Siddhivinayak Ganapati Temple at Prabhadevi in Mumbai, a two-century-old Temple that fulfills the desires of the worshipers. This temple was first consecrated in November 1801.

Welcome to mumbai

Overview
Mumbai Map

History

Gateway of India

Chhatrapati Shivaji Terminus (CST) (formerly Victoria Terminus)

Shree Siddhivinayak temple

Galaxy S4 Active Gains FCC Approval Ahead of Samsung’s June Event

Ahead of Samsung’s scheduled June 20th event to unveil new Galaxy and ATIV products, the FCC has approved the rugged and waterproof Galaxy S4 Active smartphone. The U.S. regulatory agency approval shows that the device packs the same LTE bands that are supported on the AT&T Galaxy S4, suggesting that the Galaxy S4 Active will eventually make its way to the carrier though that’s not confirmed at this point.

Though the regulatory approval doesn’t reveal much about the phone, we have seen the phone show up more recently in leaked photos and videos. And while the phone does share its name with Samsung’s flagship Galaxy S4, the Active variant won’t carry the high-end specs and will live a more mid-range existence. Users who do choose this model will be happy to know, however, that the Active still boasts a slim and svelte form factor despite its waterproof heritage, which would make it an awesome companion by the pool this summer.

Photofast i-FlashDrive HD Review: a USB Drive for iOS Devices

PhotoFast’s i-FlashDrive HD works like a USB flash drive for iOS devices, including all generations of the iPhone, iPod Touch and iPad. It copies data and files to and from iOS devices and then plugs into a Mac or PC using USB 2.0.

The i-FlashDrive HD comes in four sizes: 8GB, 16GB, 32GB and 64GB. We tested a 32GB i-FlashDrive HD that came with a USB port on one side and a 30-pin connector on the other. It ships with a 30-pin Lightning adapter, letting it work on all iOS devices. They also sell versions with only the Lightning connector.

How i-FlashDrive Works

The i-FlashDrive HD works in concert with a free i-FlashDrive app. The app shows three sections, backup, storage and cloud. Use backup to copy contacts, pictures, video and other files to the flash drive.

i-FlashDrive app

Storage shows two areas of storage:

Local Storage – refers to built-in storage of the iOS device
External Storage – storage on i-FlashDrive

How to Use Web Workers for Image Manipulation

Today I’d like to talk about picture manipulation in HTML5, using pure Javascript.

The Test Case

The test application is simple. On the left a picture to manipulate and on the right the updated result (a sepia tone effect is applied):

Picture before and after Javascript manipulation

The page itself is simple and is described as follow:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>PictureWorker</title>

    <link href="default.css" rel="stylesheet" />
</head>
<body id="root">
    <div id="sourceDiv">
        <img id="source" src="mop.jpg" />
    </div>
    <div id="targetDiv">
        <canvas id="target"></canvas>
    </div>
    <div id="log"></div>
</body>
</html>

The overall process to apply a sepia tone effect requires you to compute a new RGB value for every pixel of the existing source picture, and then render it on the <canvas> tag with id=”target”. Below are the formulae we use to create the new RGB values from the existing RGB values of a pixel:

finalRed= (red * 0.393) + (green * 0.769) + (blue * 0.189);
finalGreen = (red * 0.349) + (green * 0.686) + (blue * 0.168);
finalBlue= (red * 0.272) + (green * 0.534) + (blue * 0.131);

To make it a bit more realistic, I’ve added a bit of randomness to my sepia formulae. I create a noise value which ranges from 0.5 to 1, which determines the degree to which my final pixel output matches the RGB value calculated via the formulae above, versus the degree to which it retains it’s original RGB values.

function noise() {
    //Returns a value between 0.5 and 1
    return Math.random() * 0.5 + 0.5;
};

function colorDistance(scale, dest, src) {
    // returns a red, blue or green value for the 'sepia' pixel
    // which is a weighted average of the original value and the calculated value
    return (scale * dest + (1 - scale) * src);
};

var processSepia = function (pixel) {
    // takes a given pixel and updates its red, blue and green values
    // using a randomly weighted average of the initial and calculated red/blue/green values
    pixel.r = colorDistance(noise(), (pixel.r * 0.393) + (pixel.g * 0.769) + (pixel.b * 0.189), pixel.r);
    pixel.g = colorDistance(noise(), (pixel.r * 0.349) + (pixel.g * 0.686) + (pixel.b * 0.168), pixel.g);
    pixel.b = colorDistance(noise(), (pixel.r * 0.272) + (pixel.g * 0.534) + (pixel.b * 0.131), pixel.b);
};

Brute force

Obviously the very first solution consists of using brute force, with a function that apply the previous code on every pixel. To get access to the pixels, you can use the canvas context with the following code, which creates a pointer to the source img and the target canvas, and :

var source = document.getElementById("source");

    source.onload = function () {
        var canvas = document.getElementById("target");
        canvas.width = source.clientWidth;
        canvas.height = source.clientHeight;

  // ... tempContext is the 2D context of canvas
        tempContext.drawImage(source, 0, 0, canvas.width, canvas.height);

        var canvasData = tempContext.getImageData(0, 0, canvas.width, canvas.height);
        var binaryData = canvasData.data;
    }

At this point, the binaryData object contains an array of every pixel and can be used to quickly read or write data directly to the canvas. With this in mind, we can apply the whole effect with the following code:

    var source = document.getElementById("source");

    source.onload = function () {
        var start = new Date();

        var canvas = document.getElementById("target");
        canvas.width = source.clientWidth;
        canvas.height = source.clientHeight;

        if (!canvas.getContext) {
            log.innerText = "Canvas not supported. Please install a HTML5 compatible browser.";
            return;
        }

        var tempContext = canvas.getContext("2d");
        // len is the number of items in the binaryData array
        // it is 4 times the number of pixels in the canvas object
        var len = canvas.width * canvas.height * 4;

        tempContext.drawImage(source, 0, 0, canvas.width, canvas.height);

        var canvasData = tempContext.getImageData(0, 0, canvas.width, canvas.height);
        var binaryData = canvasData.data;

        // processSepia is a variation of the previous version. See below
        processSepia(binaryData, len);

        tempContext.putImageData(canvasData, 0, 0);
        var diff = new Date() - start;
        log.innerText = "Process done in " + diff + " ms (no web workers)";

     }

The processSepia function is just an variation of the previous one:

Pages

Thursday 30 May 2013

The Ultimate Motivational Clip – Rise & Shine

Peugeot RCZ GT THP200: Tech

Peugeot RCZ GT THP200: Verdict

Top 10 computer mouse tips everyone should know

This DIY Super Laser Can Cut Through A Ping Pong Ball

What We Expect

Welcome to mumbai

History

Gateway of India

Chhatrapati Shivaji Terminus (CST) (formerly Victoria Terminus)

Shree Siddhivinayak temple

Welcome to mumbai

History

Gateway of India

Chhatrapati Shivaji Terminus (CST) (formerly Victoria Terminus)

Shree Siddhivinayak temple

How i-FlashDrive Works

The Test Case

Brute force