Convert Image Grayscale

For this particular example, I will be working on Wndows (sorry X users). I might write a similar guide once I am more comfortable with programming in Linux. What You Will Need Visual C# 2010 Express (Get it here) Pirate Metal Source Code (For when you are done with the guid ...more

Giveaway Tuesdays has officially ended! But don't sweat it, WonderHowTo has another World that's taken its place. Every Tuesday, Phone Snap! invites you to show off your cell phone photography skills. Submit your best shot to our weekly competition for a chance to win an awes ...more

Are you tired of having to use two different enchanting tables when you want both low and high enchants? Are you sick and tired of hearing your faction/guild/clan members say that they need lower enchants because they don't have enough experience levels for high-end enchants? ...more

One of the things I consistently notice amongst fellow internet users is that many people don't know how to properly search for stuff. Google may have served you well in the past, but I'm going to share a few little tricks with you to help make your search results even spiffie ...more

Eager to share your favorite pieces of literature, but can't find any electronic version of the book? Don't worry! You can create your own e-book library. All you need is a digital camera and some free software. Scan or take photos Scan or take photos of a book you want to c ...more

The latest Star Wars movie, Solo: A Star Wars Story, has grossed almost $350 million worldwide during its first month in theaters. This is a good opportunity to discuss how hackers can use media hype (in this case, Hollywood movie hype) to disarm an unsuspecting Windows user i ...more

Handwritten notes are no doubt useful at home, work, and school, but digitizing them with your smartphone will make them easier to edit, organize, and review. You'll also always have a digital copy ready if your handwritten notes get lost or erased. And Google Keep for Android ...more

When you see foreign words on a sign, unfamiliar currencies on a dinner menu, or a recipe using a different measurement system, there's a good chance you google it for a translation or conversion. Your iPhone's Translate app comes in handy for real-world language translations, ...more

Did you know that using your Nexus 5 can deprive you of sleep—and not just because you can't seem to quit playing that addicting game or watching Netflix videos? Recent studies have shown that exposure to blue light, particularly during night hours, can disrupt circadian rhyt ...more

In iOS, Apple provides a few live wallpapers that you can use for the background on your iPhone's lock screen, but these animated options are just wavy color shifts and ink-in-water effects. To really customize your lock screen, you can use a Live Photo for your wallpaper. If ...more

Apple's latest mobile operating system, iOS 9, may not be the huge overhaul that iOS 8 was, but that doesn't mean there aren't plenty of new features. In fact, there are a ton of subtle changes that you may not notice right away. Here's a rundown of all the coolest new feature ...more

Every model iPhone since the 6s has boasted a 12-megapixel rear camera. You can take some pretty spectacular, professional-looking photos with it, especially on devices that have more than one rear lens. But the file size of each photo can become a problem when sending as an i ...more

A lot of people still trust their web browsers to remember every online account password for them. If you're one of those users, you need to adopt a more secure way of managing passwords, because browser-stored passwords are hacker gold mines. With a USB Rubber Ducky and physi ...more

Returning your device to stock, whether it is because you need to sell it or just want to receive OTAs again, is not always a simple process. Since HTC has released countless variations of both the M7 and M8 HTC One, it can be a pain in the ass finding the right files and tool ...more

If you haven't noticed yet, there are a lot of new features hiding in your iPhone's Messages app, and some of them are things users have been requesting for a long time. While iMessage is getting a lot of attention by letting us edit and unsend messages, it's only just the sta ...more

To share a song or album to family and friends, it's as easy as copying its link in the app and pasting that into a message. However, not everyone uses the same music streaming service, so a link to an Apple Music song won't do a Spotify, Tidal, Pandora, Deezer, or YouTube Mus ...more

WhatsApp has a new sticker-making tool in the iPhone app that lets you create custom stickers directly in chats using your own images, eliminating the need to rely on third-party apps to make them. The new sticker maker, which first appeared in late February, works with Whats ...more

It just keeps getting harder to enjoy all of the benefits of root without sacrificing features. Thanks to SafetyNet, we've lost the ability to use Android Pay, Pokémon GO, and even Snapchat to an extent. But the most recent news on this front is perhaps worst of all: Netflix h ...more

Instagram enthusiasts will be pleased to know that there is finally a way to post your Live Photos on the service. The animated images were supported by Facebook, Tumblr, and Google after the feature was launched on the iPhone 6S, but it's taken Instagram a year to catch on. ...more

I don't know about you, but when I shoot a slow-mo video on my iPhone, I'd also like to have a regular speed copy of it, just in case slow motion doesn't fit the video right. Traditionally, converting slow-motion video required manually speeding the video back up in editing a ...more

Now that you've updated your iPad, iPhone, or iPod touch to iOS 8, there's a lot of cool new things to explore. If you felt a little overwhelmed from all of the detailed information available in our Coolest Hidden Features of iOS 8 post, then I've got a simple breakdown of all ...more

Converting Movies To Psp Format. Hey again, this is a real quick guide for anyone interested to get a movie onto there PSP without all the fluff i have seen elsewhere. I just watched Africa the Serengeti on my PSP and heres is the lowdown. Movie - approx 40 minutes - dvd Sav ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

Get ready to draw like Leonardo da Vinci, or, at least, trace like him. A new augmented reality app, SketchAR, is the first mobile app that uses AR to allow users trace an image on real paper. The Lithuania-based company describes their product as "an application through which ...more

Hello, everyone! Many of you don't even know about my existence here on Null Byte, so I thought of contributing something rather interesting. Recently, someone asked how to make your own "Bad USB," and I promised to make a how-to on this topic. In addition, it would be nice t ...more

When you're looking at a site with a lot of links to images, it can get really old having to open each one individually. Not to mention loading so many pages can take forever. A browser extension called img2tab solves this problem by opening all the images on a page in a new ...more

When most people think of stained glass, the first thing that comes to mind is a church, but it's become more popular in home decor as well. The biggest downside is that high quality stained glass pieces can be insanely expensive—and it's not an easy project to take on yoursel ...more

You probably already know that your digital pictures have quite a bit of information embedded in them. What you might not know is just how much personal information is included in that metadata, including your camera information, and in some cases, even the precise GPS coordin ...more

The Calculator app is probably one of Apple's most-used iPhone apps, yet I always meet people who don't know all the little tricks there are to using it more efficiently. You may know most of them, but there's a chance you don't or at least forget about some of them. What a " ...more

Analysis of photographs and social connections can be a huge component of social engineering. Understanding who a person is, as well as who they know, can establish links within a company. This information could be used by hackers to execute elaborate social engineering attack ...more

Apple gave us the ability to invert colors on the screen a very long time ago. Then they gave us grayscale mode in iOS 8, Night Shift in iOS 9, and the red screen filter in iOS 10. While the long-awaited "Dark Mode" finally appeared in iOS 13, iOS 11 and iOS 12 both have a dec ...more

If you've ever wanted to turn your favorite GIF into a live wallpaper for your iPhone or even just make it a 3D Touch-friendly Live Photo that you can share, there's a super simple way to do so. Using the Giphy app for iOS, you can convert any GIF found on Giphy's website int ...more

Apple's Reminders app has always been an underrated yet useful productivity tool for iPhone. It's not as powerful as many third-party to-do apps, but it makes it easy to keep track of a few basic tasks, and it's integrated deeply with iOS, macOS, and watchOS. In iOS 13, it's e ...more

The updated Reminders app in iOS 13 makes productivity a little bit more seamless on the iPhone. The overhauled user interface makes it easier to find your reminders, the new Messages integration makes it simpler to remember to-dos regarding your contacts, and the new toolbar ...more

Judges at the South by Southwest (SXSW) Accelerator Pitch Event named Lampix the winner in the Augmented and Virtual Reality category, conference organizers announced today. The ninth annual competition, which took place over the weekend in Austin, Texas, pitted 50 startup fin ...more

Magic Leap, the mysterious Florida-based mixed reality start-up, announced on Wednesday that it would be opening a 260,000 square-foot expansion in Florida, and bringing along with it 725 new jobs over a five-year period. To make this happen, they will be making an $150 millio ...more

You probably already know that cooking involves a ton of chemistry. Bread rises because of the reaction between the flour and leavener, and the delicious crust on your steak is formed by the Maillard reaction. Understanding the chemistry going on behind the scenes is one of th ...more

Firstly, I'd like to say that I have nothing against iPhoto; it's a great application that works wonderfully in Mac OS X. Unfortunately, when you no longer have iPhoto on your MacBook—and you don't want to pay for it—looking for an alternative is a necessary endeavor. I could ...more

If you're doing research that includes a lot of copy/pasting, it can get really tedious to open a new document every time you want to save something. Luckily, you can cut out the extra step and save text and images that are currently in your clipboard directly to a folder or y ...more

It's no secret that Apple's iOS 16 update is packed with useful features, but some of them Apple never even mentioned. Not at the software's unveiling in June and not even after iOS 16's public release in September. It's actually surprising considering that one little-known ne ...more

Apple's iOS 11 release promises many improvements and fresh ideas. One of those new ideas is an image codec called HEIF (similar to HEVC for videos), designed to reduce the space photos take up on your iPhone. But it's so new that it's already causing issues with compatibility ...more

About a third of the methane released into the environment comes from the production and transport of natural gas. The gas leaks as it moves along the transport chain from gas wellheads to market. To trap methane and produce a useful product in the process, a group of scienti ...more

Metabolism is the process by which your physical body converts what you eat and drink into energy that your body needs to function. To boost your metabolism, there are many things you can try, including exercising more, drinking green tea, staying hydrated, drinking coffee in ...more

Before Apple jumped into the phablet game with their iPhone 6 Plus, there was the Samsung Galaxy Note series. Initially knocked for their size, the Notes slowly but surely gained popularity, thanks to powerful hardware, incredible displays, extensive features, great battery li ...more

Going green doesn't mean we have to give up classic American traditions like Monster Truck rallies. This cute little Smart car was converted into a Monster Truck by Greek rally champ, Stefan Attart. According to Edmunds:  "The head-turning Smart combines the body shell of th ...more

Look left. Can your garbage take photos like that? With a few tweaks it will! The pinhole camera is photography in its most basic form. Using a light-proof container, the 35mm will capture the image when the pinhole is opened. The resulting photographs have a distinctly démod ...more

The coronavirus continues to disrupt the tech industry, including the augmented reality segment, with Apple and the iPhone the latest to feel the impact. After the cancellation of Mobile World Congress due to the virus outbreak, HTC proceeded with its unveiling of HTC Vive pr ...more

The Augmented World Expo is winding down in Santa Clara, where Qualcomm, Vuzix, and Meta Company were among the companies making big announcements. But some of tech's biggest players still made news outside of AWE. Apple is looking for talent with augmented reality experience ...more

|UPDATE: The event is now over and we've learned all there is to know about the new Galaxy S9 and S9+. But if you're still interested in watching Samsung's presentation, we've left the replay video embedded below. Galaxy fans, listen up — Samsung is set to announce its new S9 ...more

Whenever you would use "Portrait Mode" in iOS 10 on your iPhone 7 Plus, the camera would save both a regular and depth effect version. If you were low on space, you could always opt to save the depth effect version only, but this setting is now gone in iOS 11. While at first i ...more

Adobe Premiere Clip is a great mobile app for users with little to no editing experience. Its automatic editor will sort your clips into a fun video in seconds, leaving you to just choose the music. But what if you're looking for more than automatic settings? What if you want ...more

For photographers, the "plus" in the iPhone Plus models used to mean optical image stabilization, but now that the iPhone 7 and iPhone 7 Plus both have OIS on board, that "plus" has moved onto something else—the dual-lens camera. Actually, the new dual-lens setup on the iPhone ...more

When you're browsing the internet on a computer, you just need to hit Ctrl F (or Command F) and type something out to find all instances of that word in the webpage. It's a handy feature baked into most browsers (nearly all mobile browsers have a "find" feature, too), but unfo ...more

Live Photos is exclusive to the iPhone 6S and 6S Plus models, and provides a new dimension to your pictures. When taking a picture, the camera captures moments immediately right before and after you hit the shutter, creating a GIF-like animation that's approximately three seco ...more

NSA aside, Apple makes it difficult for users to extract and download text messages from their iPhones onto a computer. For whatever reason (legal, devious, neurotic, etc), we've all found a time where we'd like to save backups of certain meaningful, important, or perhaps incr ...more

You take a photo or video, send it to a friend, and they say, "Hey, I can't open this." More often than not, your friend won't be using an iPhone, iPad, iPod touch, or Mac. Instead, they're likely trying to open the file with a non-Apple device. But this problem can be avoided ...more

There are plenty of third-party apps for scanning documents on your iPhone, but they can all be tossed out the door since iOS 11 includes one by default now. Instead of a dedicated app, it's included as part of the Notes app, and it's fairly easy to use. After scanning, you ca ...more

Last June, Meta began shipping their Meta 2 mixed reality headset, to the delight of many. In September, it was announced that shipping had been delayed until the end of the year. Then it appeared that Christmas would bring something magical when Meta sent out an email four da ...more

When it comes to smartphone screens, there are two predominant technologies—the traditional LCD panel, and the newer AMOLED display. Most phones still use LCD screens, as the tech is more cost-effective due to its longstanding reign as the primary display type in TVs, smartpho ...more