Digital Imaging Explained

Digital Imaging is a process where an electronic photograph, scanned document, or image is converted into a series of electronic dots called pixels. Pixels is an acronym for "picture elements".

After the image is converted, or digitized, it is stored on a memory storage device which may be a hard drive or some sort of electronic storage device such as a memory stick. The pixels are stored in a compressed format to save storage space.

As each pixel is being created it is assigned a color value, called a tonal value, of black, white, shades of grey, or an actual color. These pixels must be processed by a piece of software in order for them to be called up and viewed as an actual image later.

Traditional cameras capture images onto film while digital cameras use an electronic chip known as a Charged Coupling Device (CCD). The CCD is actually a grid of miniature light-sensitive diodes. These diodes convert photons (light) that strikes them into electrons (electrical impulses). The technical name for these diodes is 'photosite'. The brighter the light is that hits the photosite the stronger the electrical charge is that's produced.

After converting the photons into electrons, a mini-computer, located inside of the camera, reads the stored electrical value in each photograph. Then a built-in analog-to-digital converter turns the stored electrical value into a digital value. These digital values are then stored on the cameras memory storage device. When these digital values are recalled by software, and displayed on a screen, they reproduce the image that was originally captured by the camera or digital input device.

The digital image that is created by the CCD is huge. It's far too big to be easily stored in the relatively little amount of storage space that's available to a digital camera. Accordingly, the camera's computer compresses the image to make it smaller.

There are two basic methods for achieving this compression. The first method takes advantage of repetitive patterns in the image. For example, if you are taking a picture of an airplane that is flying in the sky, a lot of the picture will be a chunk of blue sky. The camera recognizes that there are multiple parts of the image containing the same digital information, so it only records a small piece of the sky. Then it simply creates a map to tell it where the rest of the sky belongs. When the picture is ultimately displayed the sky appears exactly the same as it did in the original image when it was first captured. The only difference is that the overall storage requirements were reduced thanks to the camera's clever mapping techniques.

The other method uses a procedure called irrelevancy. This methodology automatically removes digital information that is not visible to the human eye such an infra red light.

Digital imaging is amazing yet we have only started witnessing the revolutionary changes that are yet to come.

About The Author

Warren Lynch has been shooting commercial photography since 1979. Clients include Several Regional and National accounts. Sign up for"The Digital Dose" and receive his tips every other week for FREE! http://www.photopheed.com.

[email protected]

In The News:

Life in megacities: Michael Wolf's photography  DW (English)Dense and compressed: Life in Hong Kong or Tokyo is challenging for its inhabitants. German photographer Michael Wolf has explored their reality through his ...
A Hilarious Look at the 'Terrible' History of Photography  FstoppersWe've got it pretty good when it comes to modern cameras and the ease with which we share photographs. Actually, we have it really good. Therefore ...
Ten Things I Learned About Landscape Photography in 2018  Fstoppers2018 is old news, but that doesn't mean we're quite done learning from it. As you reconsider some of those New Year's resolutions, it's important to revisit the ...
Best Photography Case for Your Android Phone  Android CentralThe Moment Photo Case is well-known for a reason. On its own, it's a slim and stylish case that fits on most popular phones, but with the addition of Moment's ...
20 brilliant novels about photography  Digital Camera WorldLooking for a good book to curl up with? Love photography? Then why not combine the two? Advertisement. In this post we bring together the best novels ...
How Is Photography Affecting Us?  FstoppersPeople are going to the plastic surgeon to get rhinoplasties because their mobile phone cameras distort their noses too much while taking selfies. What does ...
‘No Photography’ rule irksome sterile security gambit, axe it  Daily NationDon't we just love useless prohibitions under the guise of security? Every time I walk past Nairobi's General Post Office, Teleposta Towers, I'm bemused by the ...
Photography news: Careful, self-driving cars can ruin your camera sensor  Digital TrendsIn this week's photography news, learn how self-driving cars destroyed a digital camera via lasers. Find out how many patents Canon filed for in 2018.
Professional Photographers of America Announces New Degree: Master of Wedding Photography.  BenzingaNation's leading photography association to reward the makers of wedding images with a degree specializing in wedding photography. ATLANTA (PRWEB) ...
War memorial photography challenge  PerthNowWest Australian's are being urged to take photos of war memorials to create an interactive online map.
How photography became the ‘dominant form of recording the world’  Washington PostMost of us give up painting or sculpting when we leave the art classes of grade school, and aside from participation in church choirs or garage bands, most of us ...
Best photography classes in London  Evening StandardPerhaps your new year's resolution was to take up a creative hobby, or maybe you're simply looking to up your Insta game — whatever it is, there are plenty of ...
Super Blood Wolf moon: top lunar eclipse photography tips from the experts  Digital Camera WorldA reddish 'blood moon' will appear on Sunday night from North America and on early Monday from Western Europe.
Gabriela Morawetz's Imponderables  British Journal of PhotographyThough she has a truly global background, Gabriela Morawetz creates her own world in her photography - in which nearly every element is literally hand-crafted.
An Itinerant Photographer's Diverse Portraits of the Turn-of-the-Century American South  HyperallergicThe Nasher Museum of Art exhibits the portrait photography of Hugh Mangum, whose glass plate negatives were salvaged from a North Carolina barn.
How Photography Changed My Life: My Story of Becoming a Photographer  FstoppersWhat does photography mean to you? In this article, I share my story about how photography changed my life and my journey as an artist. See my ups, my ...
How Does Photography Affect You? We Tried to Find Out  WIREDWe've all got cameras in our pockets—but how do those countless photos we take every year change our brains and emotions?
Tokyo International Foto Awards 2018 | Photography  Metropolis JapanThe Tokyo International Foto Awards announced the winners of its 2018 Photography competition in both professional and amateur divisions. The grand-prize ...
Ulefone Armor 6 Photography Test (Video)  Gizchina.comThe new rugged monster Ulefone Armor 6 is already finding its way into the chinese e-shops and the rugged phone lovers are already searching for their ...
5 Of The Best Smartphone Camera Lenses To Up Your Photography Game!  StorypickAttachable phone camera lenses take your smartphone photography game to the next level. These 5 lenses elevate your photography experience!
How to Start Making Money as a Photographer  FstoppersOne of the hardest parts of becoming a professional photographer is that initial jump from amateur work to being paid to create photos. This quick and helpful ...
Eclipse 2019: How to photograph the Blood Moon? Veteran photographer David Noton's tips  Express.co.ukTHE Blood Moon eclipse tomorrow night creates a rare opportunity for photographers and astronomers alike to capture a snapshot of the total lunar eclipse.
Park Life' photography competition winners to be announced at Brooke Park  Derry NowThe wait is almost over for over 100 entrants in Derry City and Strabane District Council's Park Life Competition with the winners set to be announced at an event ...
Australian photographers win top prizes at the International Wedding Photography of the Year Awards  Daily MailAustralian lensman Dan O'Day and Jason Tey were awarded the top two awards in the annual competition with O'Day named Grand Winner and Tey runner-up.
The new democracy in photography  Times of IndiaA lot has already been said about how the phone camera has empowered us to document anything and everything about our lives. Photographer and ...
Secrets to a successful freelance career in photography by Ayush Pathak  India TodayEveryone with a DSLR camera doesn't become a photographer. So what is it that you need to be a successful freelance photographer? Ayush Pathak gave us ...
'I snap the poodle. The poodle looks confused' – how to get better at street photography  The GuardianMy photos are frequently rushed and taken from peculiar angles. The great Robert Capa would tell me I'm not getting close enough. Can some intensive ...
Your best photos of the week, January 18, 2019  National GeographicEach week, our editors choose stunning photos submitted by members of Your Shot, National Geographic's photo community.
How This Photographer is Using His Camera to Combat Depression  PetaPixelPhotographer Greg Sheard has suffered from depression for nearly two decades now, but two years ago he took up a new weapon in his fight against it: his ...
DJI uncover 'extensive' fraud estimated at $150 million  Australian PhotographyThe world's largest drone-maker, DJI, has reported that it will take a loss of up to a billion yuan ($150 million) as a result of widespread employee fraud, ...
The Ten Commandments of Photography  FstoppersBy “commandments,” I simply mean photography truths that have worked for me. Everyone has photography truths to believe in, but here are my 10.
Book focuses on career of Thousand Oaks celebrity photographer Orlando Suero  Ventura County StarDuring his heyday from the 1950s to the 1980s, Thousand Oaks celebrity photographer Orlando Suero photographed everyone from John and Jacqueline ...
Photographer Visualizes Depression in Surreal Photography Ideas  My Modern MetPhotographer Gabriel Isak has lived with depression for many years. Using surreal photography ideas, he visualizes the mental illness as a way to cope with it.
Arco Rock Star / The international climbing photography contest 2019  PlanetmountainFrom 10 to 12 May 2019 Arco, Italy will host the Adventure Awards Days and also the fourth international climbing photography contest Arco Rock Star.
Civil Rights Photography at the Snite for Walk the Walk Week  Observer OnlineFor Walk the Walk week, the Snite Museum of Art has curated a small collection of Civil Rights photography that focuses on the life, death and impact of Martin ...
Why Master Photographer Ralph Gibson Went Digital After Decades  WIREDThe renowned film photographer Ralph Gibson was lying in his shrink's office in lower Manhattan a few years back, brooding. FedEx had knocked on his door ...
2019 British Life photography awards – in pictures | Art and design  The GuardianThe awards aim to capture and celebrate the essence of life in Britain through illuminating, humorous and poignant imagery. Opening at Mall galleries in London ...
2018: A year in photographs on The Verge  The VergeLast year, the introduction to 2017: A Year in Photographs began, “As 2017 finally draws to a close, we can all look back on a year that in many ways seems to ...
Workshop in Montenegro and Albania with K.Sluban  The Eye of Photography13-20 April 2019 : A workshop in Montenegro and Albania with Klavdij Sluban. East to East Photography Workshops was founded by Klavdij Sluban and Tereza ...
Aussies clean up at International Wedding Photographer of the Year awards  Australian PhotographyAustralian photographers Dan O'Day and Jason Tey have been awarded the top two awards in the second annual 2018 Wedding Photographer of the Year ...
Snap! Arts Alliance, MUSE to honor photographer Edel Mohr  St Pete CatalystThe St. Petersburg Arts Alliance will honor Edel Moore at the Feb. 8 MUSE Awards. As the official photographer for the annual SHINE Mural Festival, Moore is ...
Q&A: Void's Hunger project  British Journal of Photography"Every photographer is a Hunger Artist," say Greek publishing house Void, whose printed and online project Hunger is based on a Franz Kafka story and ...
Original Observer photography | Art and design  The GuardianMine clearance in the West Bank, Nicole Kidman, Feargal Sharkey, Nadiya Hussain and the cloud forest of Costa Rica – all feature in this showcase of the best ...
Shocker: News Photography Gets Worse Without Actual News Photographers  FstoppersIt's been a rough time for photojournalists, with many large metro newspapers laying off entire photo staffs. Quality is bound to take a hit, but does the public ...
Best of 2018: Top 36 Photographs From Around the World  My Modern MetThis year has been filled with beauty, adventure, laughs, and wanderlust. Let's take a look back with the best photos of 2018.
The Colorful and Clairvoyant History of Aura Photography  ArtsyIn 1936, cultural critic Walter Benjamin famously posited the loss of the “aura” in art—the aura being a mystical force that stemmed from an artwork's unique ...
Total lunar eclipse photography: Shutterstock shooters share their secrets  Digital Camera WorldFive astrophotographers explain how they took stunning pictures of the Blood Moon during previous eclipses.
The best of 2018 wildlife photography awards – in pictures  The GuardianWinning images from the year's national and international wildlife photography competitions.
Authentic, holistic, retro photography is in: Here are 2019’s predicted trends  Digital TrendsNow that 2019 is here, data from the biggest searches in 2018 can help photographers, videographers, and other creatives determine which projects will ...
A Photographer's Stunning Journey Back from Depression  FlavorpillJenn Wong called upon her camera to help her out of a six-year depression.
Night photography tips: a complete A-Z guide  Digital Camera WorldWant to take great pictures after dark? Follow our 26 tips and tricks for shooting the night.
Alberta photographer celebrates Hollywood connection  CTV NewsOne of 2017's most memorable pictures – taken by an Alberta woman – has made its way into a Hollywood hit.
Nikon Coolpix B600 is bridge to big zoom photography  Digital Camera WorldAs well as launching the Coolpix A1000 earlier today, Nikon has also unveiled the B600 – a new addition to its range of bridge cameras. Advertisement.
Renowned Photographer Jimmy Chin Shares His Tips For Adventure Photography  Travel+LeisureMountain sports athlete and award-winning photographer Jimmy Chin shares the mistakes to avoid and tips to follow for budding adventure photographers.
In Reuben Wu’s Photography, a View of Another World  ArtsyIn the dead of night at 16,000 feet in the Andes of northern Peru, Reuben Wu trekked through the treacherous icy terrain, camera and drone in hand, to capture ...
Nathan Lyons: An Irresistible Passion for Photography  The New York TimesNathan Lyons worked outside mainstream aesthetics, eschewing pomposity, while capturing wonderment amid everyday banality.
Photographer Falls Victim to 'International, Highly Elaborate Scam,' Potential Kidnap Plot  FstoppersA photographer based between LA and NYC has fallen victim to an “international travel scam” on a huge scale, which saw her end up in Indonesia and down ...
Malawi: Mesip Desk Officers Hone Skills in Basic News Writing, Photography  AllAfrica.comMalawi Education Sector Improvement Programme (MESIP) desk officers were last week trained in basic news writing and photography for them to contribute ...
The 9 Young Photographers You Should Be Following in 2019  W MagazineFrom the self-portraitist Chris Smith to Rolling Stone's first black cover photographer, Dana Scruggs, these are the young photographers to watch in 2019.
Readers' travel photography competition: 2018 winners | Travel  The GuardianHere are the best shots from the thousands entered in our monthly competition. The prize for the overall winner, chosen by Mick Ryan of fotoVUE, is a trip to ...
First camera crash course: simple solutions for mastering your new camera  TechRadarSo you bought your first camera... now what do you do? If you're struggling with your first steps in DSLR or mirrorless photography, rest assured you're not alone.
Our best-ever landscape photography tips  Amateur PhotographerThere are a number of elements to consider when trying to get great landscape shots. Our experts highlight the importance of framing your scene, experimenting ...
From Abba to Zappa: Gijsbert Hanekroot's photographs of 1970s rock legends in their prime  Creative Boom"The seventies: hectic, exciting, creative, constantly reinventing itself, full of self-confidence, sometimes tiresome, but never for long. What I'm saying is nothing ...
Friends Through Flames: Camaraderie on the Front Lines of Wildfire Photography  PetaPixelWhen historic wildfires raged across California last year, thousands of firefighters were deployed to combat them. And alongside those brave men and women ...
Become a Better Photographer With This 52-Week Photo Challenge  LifehackerBecome a better photographer” has been on my New Year's resolution list every year for probably a decade. I guess it's more of a goal than a resolution.
Channeling The Pain Of Depression Into Photography, And Finding You Are Not Alone  NPRTara Wray's book Too Tired for Sunshine is a collection of images she made while struggling with depression. The work struck a chord with others, who are now ...
13 Stories That Captured Photography in 2018  New York TimesLens published reports from all corners of the earth this year, often by photographers working within their own communities. We covered the effects of conflict ...
See iconic photographers' forgotten work in 1950s Mormon towns  High Country NewsIn the 1950s, two legendary photographers created a body of work that has since been nearly forgotten. Dorothea Lange, whose images distilled the Great ...
Power of Penn's still lifes in photography  Times of IndiaRecently, a set of excessive over the top, still life images in an Indian magazine made me ponder about the still life master Irving Penn and his ingenuity in ...
How One Photographer Traces the Moon and Stars Across the Country  WIREDIn his series "Of Heaven and Earth," photographer David Shannon-Lier records the movements of the moon and stars, then adds his own earthly markings.
Walter Chandoha, Photographer Whose Specialty Was Cats, Dies at 98  The New York TimesA stray kitten appropriately named Loco started Mr. Chandoha on an unexpected career. By the time he died, he had taken some 90000 cat pictures.
True vision: An interview with celebrity photographer Matthew Jordan Smith  Digital TrendsPhotographing a celebrity is on many photographers' bucket lists -- so what's it like? Learn from celebrity photographer Matthew Jordan Smith in this interview.
Photographs hidden in museum archives for 150 years capture creatures pulled from Sydney Harbour  Daily MailThe new exhibition, Capturing Nature, will have on show the incredible scientific discoveries of Australian Museum scientists between the 1850s and 1890s.
The most spectacular, surreal and psychedelic photography of 2018  New AtlasFrom alien architecture to neon water reflections, the last 12 months have delivered a stunning array of photographic treats. To celebrate the new year we have ...
Holland College to offer golf and photography programs in September  The GuardianAfter pulling the plug last year on golf and photography programs, Holland College is set to offer lightened options in both of these fields in September. In March ...
Renovation reveals long-lost scientific photographs  NewsroomA renovation at Plant and Food Research has led to the discovery of long-forgotten scientific images from the 1950s.
This Solar System Photo Was Shot From a Photographer's Backyard  PetaPixelCheck out this family portrait of our solar system. It's a composite photo created by a single astrophotographer who photographed the planets from his own ...
Interview: Street Photographer Explores the Faces That Make New York  My Modern MetSelf-taught photographer Colin Ridgway is known for his New York street photography, which often focuses on candid photos of strangers riding the subway.
Showcase: Chris Klopf  Surfer MagazineOver the past five decades, Northern California surfer and photographer Chris Klopf has sought to capture the wild spirit of surfing in his own way.
How an Elaborate International Scam is Making the Rounds Among Instagrammers and Photographers  PetaPixelIt all started with an email from Wendi Murdoch. She claimed that she had found us through a personal recommendation from a senior editor at Conde Naste ...
Photographer Lucy Dack sets up first studio in Lime Walk, Long Sutton  Spalding TodayYoung photographer sets up her first studio in Long Sutton.
Massillon Museum seeking entries for photography exhibition  New Philadelphia Times ReporterThe Massillon Museum is seeking entries for its “Looking at Massillon” photography exhibition.Photographs must be submitted in jpeg format with a 300 dpi ...
20 Best Mobile Photography Accessories of 2018  Resource MagazineWith the end of the new year comes all the gear and production that allowed our digital memories to exist. Here's a list from Resource counting off the best ...
What is the best aperture and focal length for portraits?  TechRadarFind out how changing the aperture and lens focal length can produce very different effects with your subjects.
Photos Day Or Night: How One Photographer Documented The Segregated South  NPREvident in the new book, Photos Day or Night: The Archive of Hugh Mangum, is a playfulness that was unlike the work of any other photographer from the turn of ...
candida höfer's architectural photography in mexico exhibits in new york  Designboomcandida hofer, known for her large-scale architectural 'portraits,' exhibits works drawn from her mexico series at sean kelly gallery in new york city.
Mountain-top photography gallery the Lumen Museum opens in the Italian Dolomites  Wallpaper*At the summit of Plan de Corones in the Kronplatz region of South Tyrol, the Lumen Museum celebrates the history and present of mountain photography.
How to Get Into Photography (Without Being a Dick About It)  LifehackerSo: you love taking pictures on your phone and want to upgrade to some fancier equipment. But where do you start? How do you know how much to spend on a ...
Penang a hotspot for foreign photographers during Thaipusam  The Sun DailyGEORGE TOWN: When Pierre Torset arranged a four-day trip to Penang with his wife, he could not be more excited to have an opportunity of a lifetime to...
Fujifilm XF 8-16mm F2.8 R LM WR Review  PhotographyBLOGThe Fujifilm XF 8-16mm F2.8 R LM WR is the widest-angle lens in Fujifilm's extensive XF range, which is suited to APS-C cameras like the X-T3, X-H1 and ...
The best new photography gear at CES 2019  Popular Photography BlogCameras may not be the focus of CES, but there are some solid new products hitting the market in 2019.
10 macro photographs highlight intricate beauty of butterfly wings  Mother Nature NetworkPhotographer Chris Perani painstakingly combines thousands of exposures to create each individual image.
Swaffham Rotary Club launches 50th anniversary 'Capture Swaffham' photography competition | Watton and Swaffham News  Watton and Swaffham TimesSwaffham Rotary Club is appealing to photography fans to help celebrate its 50th anniversary, by entering a competition aimed at capturing the life of the town ...
The 20 photographs of the week | Art and design  The GuardianGunfire and explosions in Nairobi, fast food at the White House, a great white shark off the coast of Oahu and the Australian Open tennis – the week captured by ...
This wildlife photographer invented his own devices to capture images of dangerous and elusive animals  GeekWireWill Burrard-Lucas is a wildlife photographer who has created his own remote camera gear to capture dangerous and elusive animals.
A new start: the best photographs to usher in 2019  The GuardianTomorrow is a new year, but *fresh* starts don't obey the calendar. Here, six photographers reflect on a time when life shifted on its axis.
Someone Submitted A Stolen Photograph For The OnePlus World Photography Day Competition, And it Won  News18The rightful owner of one of the winning entries is yet to receive a feedback from OnePlus India.
The Terrible History of Photographs, Sesame Street-Style  PetaPixelIt has never been easier to shoot and share photos than in our modern Instagram age. The YouTube puppet web series Glove and Boots made this ...
Mike Mandel's 'Baseball-Photographer Trading Cards'  WBURPhotographer and lifelong baseball fan Mike Mandel featured over 130 of his colleagues in a timeless set of trading cards.
Golf, photography to be offered again at Holland College  CBC.caHolland College will be bringing back its golf club management and photography and digital imaging programs back to its academic calendar.

Is Digital Photography Expensive?

Being such a fascinating device as the digital camera, this... Read More

Types of Digital Cameras

If you are in the market to purchase a digital... Read More

HP Digital Cameras - History and Beyond

HP has started making digital cameras only recently. However, the... Read More

Picture Framing for Photographers - Part 2

There are two sources for obtaining the moulding for making... Read More

Take Spectacular Nighttime Photos with your Digital Camera - Part I

Night photographs express a special something that cannot be seen... Read More

Easy Tips for Digital Photo Touchups

Using a digital camera to take pictures is great. It's... Read More

The Beauty of Nature Photography

Nature is all around us, and its beauties are unlimited.... Read More

How to Photograph Your Baby

Babies make the best and the worst subjects to photograph.... Read More

Creating Printable Photo Greeting Cards

STAY CONNECTED WITH FAMILY AND FRIENDS.Making your own digital photo... Read More

Photography 101 Part 1

Photography 101 Part One Equipment: camera, meter, flash, tripod This... Read More

The Truth About Pixels - Part I: Digital Cameras

Most digital cameras today boast of greater resolution and picture... Read More

How to Buy a Digital Camera

Are you buying your first digital camera? Well, you must... Read More

Kodak Digital Cameras - The Giant Comes To Digital

George Eastman, founder of Kodak is world renowned today. Digital... Read More

Crooked Horizons in Your Photos? ? Here is a Five Minute Digital Fix

Remember the good old photography days?Film camera in hand, you... Read More

Digicam File Formats

Looking at the digital camera, a person can visualize it... Read More

Review of the Photek Product Shooting Tent

Here's the challenge. You have to photograph small items for... Read More

Landscape Photography - Capture the Beauty That is All Around

There are many different types of photography. You can take... Read More

Wedding Photography: How to Become a Successful Wedding Photographer

Once in while I receive e-mails or phone calls from... Read More

Freelance Photography: How to Begin Your Career

Photography is a vast world. There are many different types... Read More

Home Run Baseball Photography Tips

Strike one! Strike two! Strike three!Baseball! America's Pastime, and a... Read More

Infrared Photography and Big City Crime

One of the major problems of the larger cities of... Read More

Photography Contest - a fun and rewarding experience

Do you like to take photos? Are you always standing... Read More

Hyperfocal Focusing: What Is It And Why Should You Use It?

When should you use hyperfocal focusing? Well, sometimes when shooting... Read More

Specialized Styles of Photography

Outlined below is a list of genres that call for... Read More

The Benefits of Disposable Cameras

Disposable cameras are cheap and easy to use. If you... Read More